diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/CommandContextualized.java b/ganttzk/src/main/java/org/zkoss/ganttz/CommandContextualized.java
index 9ac208be6..bad415f5d 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/CommandContextualized.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/CommandContextualized.java
@@ -65,7 +65,7 @@ class CommandContextualized<T> {
         result.addEventListener(Events.ON_CLICK, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 doAction();
             }
         });
diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/FunctionalityExposedForExtensions.java b/ganttzk/src/main/java/org/zkoss/ganttz/FunctionalityExposedForExtensions.java
index a49dc354e..9649c7fc6 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/FunctionalityExposedForExtensions.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/FunctionalityExposedForExtensions.java
@@ -511,7 +511,7 @@ public class FunctionalityExposedForExtensions<T> implements IContext<T> {
         Button printButton = (Button) printProperties.getFellow("printButton");
         printButton.addEventListener(Events.ON_CLICK, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 printProperties.detach();
                 configuration.print(buildParameters(printProperties),planner);
             }
diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/LeftTasksTree.java b/ganttzk/src/main/java/org/zkoss/ganttz/LeftTasksTree.java
index 4226cec71..b45b6cce1 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/LeftTasksTree.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/LeftTasksTree.java
@@ -107,7 +107,7 @@ public class LeftTasksTree extends HtmlMacroComponent {
                 Treeitem item) {
             item.addEventListener("onOpen", new EventListener() {
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     OpenEvent openEvent = (OpenEvent) event;
                     taskBean.setExpanded(openEvent.isOpen());
                 }
diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/LeftTasksTreeRow.java b/ganttzk/src/main/java/org/zkoss/ganttz/LeftTasksTreeRow.java
index 67957c5ad..8a051b0c4 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/LeftTasksTreeRow.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/LeftTasksTreeRow.java
@@ -316,7 +316,7 @@ public class LeftTasksTreeRow extends GenericForwardComposer {
         textBox.addEventListener("onCtrlKey", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 userWantsToMove(textBox, (KeyEvent) event);
             }
         });
@@ -326,7 +326,7 @@ public class LeftTasksTreeRow extends GenericForwardComposer {
         component.addEventListener("onChange", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 updateBean(component);
             }
         });
@@ -336,7 +336,7 @@ public class LeftTasksTreeRow extends GenericForwardComposer {
         textBox.addEventListener("onOK", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 userWantsDateBox(textBox);
             }
         });
@@ -346,7 +346,7 @@ public class LeftTasksTreeRow extends GenericForwardComposer {
         datebox.addEventListener("onOK", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 datebox.setOpen(true);
             }
         });
@@ -375,7 +375,7 @@ public class LeftTasksTreeRow extends GenericForwardComposer {
         datebox.addEventListener("onBlur", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 dateBoxHasLostFocus(datebox);
             }
         });
diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/Planner.java b/ganttzk/src/main/java/org/zkoss/ganttz/Planner.java
index 865987c53..1d5c77db5 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/Planner.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/Planner.java
@@ -286,7 +286,7 @@ public class Planner extends HtmlMacroComponent  {
             }
 
             @Override
-            public void doAction() throws Exception {
+            public void doAction() {
                 ganttPanel.zoomIncrease();
             }
         });
@@ -303,7 +303,7 @@ public class Planner extends HtmlMacroComponent  {
             }
 
             @Override
-            public void doAction() throws Exception {
+            public void doAction() {
                 ganttPanel.zoomDecrease();
             }
         });
@@ -497,7 +497,7 @@ public class Planner extends HtmlMacroComponent  {
         westContainer.addEventListener(Events.ON_SIZE, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 Clients.evalJavaScript("zkTaskContainer.legendResize();");
 
             }
diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/TabsRegistry.java b/ganttzk/src/main/java/org/zkoss/ganttz/TabsRegistry.java
index 3376b37a2..d20e915bf 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/TabsRegistry.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/TabsRegistry.java
@@ -117,7 +117,7 @@ public class TabsRegistry {
                     new EventListener() {
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     if (_("Limiting resources").equals(t.getName())) {
                         Executions.sendRedirect("/planner/index.zul;limiting_resources");
                     } else {
diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/TaskList.java b/ganttzk/src/main/java/org/zkoss/ganttz/TaskList.java
index 5ed7d2789..b87b71bbd 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/TaskList.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/TaskList.java
@@ -180,7 +180,7 @@ public class TaskList extends XulElement implements AfterCompose {
         taskComponent.addEventListener("onDoubleClick", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 doubleClickCommand.doAction(taskComponent);
             }
         });
@@ -190,7 +190,7 @@ public class TaskList extends XulElement implements AfterCompose {
         taskComponent.addEventListener("onRightClick", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 try {
                     getContextMenuFor(taskComponent).open(taskComponent);
                 } catch (Exception e) {
diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/resourceload/ResourceLoadComponent.java b/ganttzk/src/main/java/org/zkoss/ganttz/resourceload/ResourceLoadComponent.java
index a5238c1e6..eb245f3e6 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/resourceload/ResourceLoadComponent.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/resourceload/ResourceLoadComponent.java
@@ -97,7 +97,7 @@ public class ResourceLoadComponent extends XulElement {
     private void addDoubleClickAction(final Div div, final LoadTimeLine loadLine) {
         div.addEventListener("onDoubleClick", new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 schedule(loadLine);
             }
         });
@@ -107,7 +107,7 @@ public class ResourceLoadComponent extends XulElement {
             final LoadTimeLine loadLine) {
         div.addEventListener("onRightClick", new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 try {
                     getContextMenuFor(divs, div, loadLine).open(div);
                 } catch (Exception e) {
diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/resourceload/ResourceLoadLeftPane.java b/ganttzk/src/main/java/org/zkoss/ganttz/resourceload/ResourceLoadLeftPane.java
index 06f0a9adb..c5ac9a755 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/resourceload/ResourceLoadLeftPane.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/resourceload/ResourceLoadLeftPane.java
@@ -74,7 +74,7 @@ MutableTreeModel<LoadTimeLine> modelForTree,
         return new TreeitemRenderer() {
             @Override
             public void render(Treeitem item, Object data)
-                    throws Exception {
+                    {
                 LoadTimeLine line = (LoadTimeLine) data;
                 item.setOpen(false);
                 item.setValue(line);
@@ -111,7 +111,7 @@ MutableTreeModel<LoadTimeLine> modelForTree,
                 buttonPlan.setTooltiptext(_("See scheduling"));
                 buttonPlan.addEventListener("onClick", new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         schedule(taskLine);
                     }
                 });
@@ -134,7 +134,7 @@ MutableTreeModel<LoadTimeLine> modelForTree,
                     final LoadTimeLine line) {
                 item.addEventListener("onOpen", new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         OpenEvent openEvent = (OpenEvent) event;
                         if (openEvent.isOpen()) {
                             List<LoadTimeLine> closed = calculatedClosedItems(item);
diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/resourceload/ResourcesLoadPanel.java b/ganttzk/src/main/java/org/zkoss/ganttz/resourceload/ResourcesLoadPanel.java
index 5ce272920..b75592e7d 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/resourceload/ResourcesLoadPanel.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/resourceload/ResourcesLoadPanel.java
@@ -158,7 +158,7 @@ public class ResourcesLoadPanel extends HtmlMacroComponent {
                 new ILongOperation() {
 
                     @Override
-                    public void doAction() throws Exception {
+                    public void doAction() {
                         applyFilter();
                     }
 
@@ -252,7 +252,7 @@ public class ResourcesLoadPanel extends HtmlMacroComponent {
         Button result = new Button();
         result.addEventListener(Events.ON_CLICK, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 c.doAction();
             }
         });
@@ -506,7 +506,7 @@ public class ResourcesLoadPanel extends HtmlMacroComponent {
                 new ILongOperation() {
 
             @Override
-            public void doAction() throws Exception {
+            public void doAction() {
                 if(paginationType == PaginationType.INTERNAL_PAGINATION) {
                     //if the pagination is internal, we are in charge of repainting the graph
                     treeModel = createModelForTree();
diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/timetracker/TimeTrackedTableWithLeftPane.java b/ganttzk/src/main/java/org/zkoss/ganttz/timetracker/TimeTrackedTableWithLeftPane.java
index 55f2350ff..ea2300f01 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/timetracker/TimeTrackedTableWithLeftPane.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/timetracker/TimeTrackedTableWithLeftPane.java
@@ -111,7 +111,7 @@ public class TimeTrackedTableWithLeftPane<A, B> {
         return new Callable<List<B>>() {
 
             @Override
-            public List<B> call() throws Exception {
+            public List<B> call() {
                 return loadPairOfListsFromCallable().getSecond();
             }
         };
diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/timetracker/TimeTracker.java b/ganttzk/src/main/java/org/zkoss/ganttz/timetracker/TimeTracker.java
index a48b1f47c..c05dd0568 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/timetracker/TimeTracker.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/timetracker/TimeTracker.java
@@ -234,7 +234,7 @@ public class TimeTracker {
                 new ILongOperation() {
 
                     @Override
-                    public void doAction() throws Exception {
+                    public void doAction() {
                         invalidatingChangeHappened();
                     }
 
diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/util/GanttUtils.java b/ganttzk/src/main/java/org/zkoss/ganttz/util/GanttUtils.java
index 5f820ebbb..68de3b609 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/util/GanttUtils.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/util/GanttUtils.java
@@ -31,12 +31,13 @@ public class GanttUtils {
     private GanttUtils() {
     }
 
-    public static int getIntFromStylePosition(String position) throws Exception {
+    public static int getIntFromStylePosition(String position) {
 
         String[] tokens = position.split("px");
 
         if (tokens.length != 1) {
-            throw new Exception("Bad formatting for input parameter");
+            throw new IllegalArgumentException(
+                    "Bad formatting for input parameter");
         }
 
         return Integer.parseInt(tokens[0]);
diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/util/LongOperationFeedback.java b/ganttzk/src/main/java/org/zkoss/ganttz/util/LongOperationFeedback.java
index a44473129..89c558964 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/util/LongOperationFeedback.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/util/LongOperationFeedback.java
@@ -95,7 +95,7 @@ public class LongOperationFeedback {
         component.addEventListener(eventName, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 try {
                     runnable.run();
                 } finally {
diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/util/MenuBuilder.java b/ganttzk/src/main/java/org/zkoss/ganttz/util/MenuBuilder.java
index f1c7d63c5..2dc4606ee 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/util/MenuBuilder.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/util/MenuBuilder.java
@@ -116,7 +116,7 @@ public class MenuBuilder<T extends XulElement> {
         result.addEventListener("onOpen", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 OpenEvent openEvent = (OpenEvent) event;
                 referenced = (T) openEvent.getReference();
             }
@@ -126,7 +126,7 @@ public class MenuBuilder<T extends XulElement> {
                 Menuitem menuItem = item.createMenuItem();
                 menuItem.addEventListener("onClick", new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         ItemAction<T> action = item.action;
                         action.onEvent(referenced, event);
                     }
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/hibernate/notification/PredefinedDatabaseSnapshots.java b/navalplanner-business/src/main/java/org/navalplanner/business/hibernate/notification/PredefinedDatabaseSnapshots.java
index 32df66270..5c14ab4e0 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/hibernate/notification/PredefinedDatabaseSnapshots.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/hibernate/notification/PredefinedDatabaseSnapshots.java
@@ -243,8 +243,7 @@ public class PredefinedDatabaseSnapshots {
     private Callable<SortedMap<CriterionType, List<Criterion>>> calculateCriterionsMap() {
         return new Callable<SortedMap<CriterionType, List<Criterion>>>() {
             @Override
-            public SortedMap<CriterionType, List<Criterion>> call()
-                    throws Exception {
+            public SortedMap<CriterionType, List<Criterion>> call() {
                 SortedMap<CriterionType, List<Criterion>> result = new TreeMap<CriterionType, List<Criterion>>(
                         getComparatorByName());
                 for (CriterionType criterionType : criterionTypeDAO
@@ -278,7 +277,7 @@ public class PredefinedDatabaseSnapshots {
     private Callable<Map<LabelType, List<Label>>> calculateLabelsMap() {
         return new Callable<Map<LabelType,List<Label>>>() {
             @Override
-            public Map<LabelType, List<Label>> call() throws Exception {
+            public Map<LabelType, List<Label>> call() {
                 Map<LabelType, List<Label>> result = new HashMap<LabelType, List<Label>>();
                 for (LabelType labelType : labelTypeDAO.getAll()) {
                     List<Label> labels = new ArrayList<Label>(
@@ -297,7 +296,7 @@ public class PredefinedDatabaseSnapshots {
         return new Callable<List<Worker>>() {
 
             @Override
-            public List<Worker> call() throws Exception {
+            public List<Worker> call() {
                 return workerDAO.getAll();
             }
         };
@@ -309,7 +308,7 @@ public class PredefinedDatabaseSnapshots {
     private Callable<List<CostCategory>> calculateListCostCategories() {
         return new Callable<List<CostCategory>>() {
             @Override
-            public List<CostCategory> call() throws Exception {
+            public List<CostCategory> call() {
                 return costCategoryDAO.findActive();
             }
         };
@@ -318,7 +317,7 @@ public class PredefinedDatabaseSnapshots {
     private Callable<List<Criterion>> calculateListCriterion() {
         return new Callable<List<Criterion>>() {
             @Override
-            public List<Criterion> call() throws Exception {
+            public List<Criterion> call() {
                 return criterionDAO.getAll();
             }
         };
@@ -331,7 +330,7 @@ public class PredefinedDatabaseSnapshots {
         return new Callable<Map<Class<?>, List<Resource>>>() {
 
             @Override
-            public Map<Class<?>, List<Resource>> call() throws Exception {
+            public Map<Class<?>, List<Resource>> call() {
                 Map<Class<?>, List<Resource>> result = new HashMap<Class<?>, List<Resource>>();
                 result.put(Worker.class, Resource
                         .sortByName(new ArrayList<Resource>(resourceDAO
@@ -354,7 +353,7 @@ public class PredefinedDatabaseSnapshots {
     private Callable<List<ExternalCompany>> calculateExternalCompanies() {
         return new Callable<List<ExternalCompany>>() {
             @Override
-            public List<ExternalCompany> call() throws Exception {
+            public List<ExternalCompany> call() {
                 return externalCompanyDAO.getExternalCompaniesAreClient();
             }
         };
@@ -366,7 +365,7 @@ public class PredefinedDatabaseSnapshots {
     private Callable<List<String>> calculateCustomerReferences() {
         return new Callable<List<String>>() {
             @Override
-            public List<String> call() throws Exception {
+            public List<String> call() {
                 // FIXME replace by a HQL query, for god's sake!
                 List<String> result = new ArrayList<String>();
                 for (Order order : orderDAO.getOrders()) {
@@ -383,7 +382,7 @@ public class PredefinedDatabaseSnapshots {
     private Callable<List<String>> calculateOrdersCodes() {
         return new Callable<List<String>>() {
             @Override
-            public List<String> call() throws Exception {
+            public List<String> call() {
                 List<String> result = new ArrayList<String>();
                 for (Order order : orderDAO.getOrders()) {
                     result.add(order.getCode());
@@ -402,8 +401,7 @@ public class PredefinedDatabaseSnapshots {
     private Callable<ResourceLoadChartData> calculateResourceLoadChartData() {
         return new Callable<ResourceLoadChartData>() {
             @Override
-            public ResourceLoadChartData call()
-                    throws Exception {
+            public ResourceLoadChartData call() {
 
                 List<DayAssignment> dayAssignments = dayAssignmentDAO.getAllFor(
                         scenarioManager.getCurrent(), null, null);
@@ -420,8 +418,7 @@ public class PredefinedDatabaseSnapshots {
     private Callable<List<WorkReportLine>> calculateWorkReportLines() {
         return new Callable<List<WorkReportLine>>() {
             @Override
-            public List<WorkReportLine> call()
-                    throws Exception {
+            public List<WorkReportLine> call() {
                 return workReportLineDAO.list(WorkReportLine.class);
             }
         };
@@ -436,8 +433,7 @@ public class PredefinedDatabaseSnapshots {
     private Callable<Map<TaskElement, SortedMap<LocalDate, BigDecimal>>> calculateEstimatedCostPerTask() {
         return new Callable<Map<TaskElement, SortedMap<LocalDate, BigDecimal>>>() {
             @Override
-            public Map<TaskElement, SortedMap<LocalDate, BigDecimal>> call()
-                    throws Exception {
+            public Map<TaskElement, SortedMap<LocalDate, BigDecimal>> call() {
                 Map<TaskElement, SortedMap<LocalDate, BigDecimal>> map =
                     new HashMap<TaskElement, SortedMap<LocalDate,BigDecimal>>();
                 for(TaskElement task : taskElementDAO.list(TaskElement.class)) {
@@ -453,8 +449,7 @@ public class PredefinedDatabaseSnapshots {
     private Callable<Map<TaskElement, SortedMap<LocalDate, BigDecimal>>> calculateAdvanceCostPerTask() {
         return new Callable<Map<TaskElement, SortedMap<LocalDate, BigDecimal>>>() {
             @Override
-            public Map<TaskElement, SortedMap<LocalDate, BigDecimal>> call()
-                    throws Exception {
+            public Map<TaskElement, SortedMap<LocalDate, BigDecimal>> call() {
                 Map<TaskElement, SortedMap<LocalDate, BigDecimal>> map =
                     new HashMap<TaskElement, SortedMap<LocalDate,BigDecimal>>();
                 for(TaskElement task : taskElementDAO.list(TaskElement.class)) {
diff --git a/navalplanner-business/src/test/java/org/navalplanner/business/common/EntitySequenceTest.java b/navalplanner-business/src/test/java/org/navalplanner/business/common/EntitySequenceTest.java
index 5b878b5c9..e58bcdc62 100644
--- a/navalplanner-business/src/test/java/org/navalplanner/business/common/EntitySequenceTest.java
+++ b/navalplanner-business/src/test/java/org/navalplanner/business/common/EntitySequenceTest.java
@@ -67,7 +67,7 @@ public class EntitySequenceTest {
     }
 
     @Test
-    public void testCreateActiveEntitySequence() throws Exception {
+    public void testCreateActiveEntitySequence() {
         try {
             entitySequenceDAO.save(givenEntitySequence("prefix-"
                     + UUID.randomUUID(), EntityNameEnum.CALENDAR, true));
@@ -80,7 +80,7 @@ public class EntitySequenceTest {
     }
 
     @Test
-    public void testCreateEntitySequenceWithEmptyPrefix() throws Exception {
+    public void testCreateEntitySequenceWithEmptyPrefix() {
         try {
             entitySequenceDAO.save(givenEntitySequence("",
                     EntityNameEnum.CALENDAR, true));
@@ -92,8 +92,7 @@ public class EntitySequenceTest {
     }
 
     @Test
-    public void testCreateEntitySequenceWithPrefixWithWhiteSpace()
-            throws Exception {
+    public void testCreateEntitySequenceWithPrefixWithWhiteSpace() {
         try {
             entitySequenceDAO.save(givenEntitySequence(
                     "prefix with white spaces", EntityNameEnum.CALENDAR, true));
@@ -105,7 +104,7 @@ public class EntitySequenceTest {
     }
 
     @Test
-    public void testCreateEntitySequenceWithEmptyEntityName() throws Exception {
+    public void testCreateEntitySequenceWithEmptyEntityName() {
         try {
             entitySequenceDAO.save(givenEntitySequence("prefix-"
                     + UUID.randomUUID(), null, false));
@@ -117,8 +116,7 @@ public class EntitySequenceTest {
     }
 
     @Test
-    public void testCreateEntitySequenceWithNumberOfDigitsNotSpecified()
-            throws Exception {
+    public void testCreateEntitySequenceWithNumberOfDigitsNotSpecified() {
         try {
             EntitySequence entitySequence = givenEntitySequence("prefix-"
                     + UUID.randomUUID(), EntityNameEnum.CRITERION, true);
@@ -132,8 +130,7 @@ public class EntitySequenceTest {
     }
 
     @Test
-    public void testCreateEntitySequenceWithNumberOfDigitsOutRange()
-            throws Exception {
+    public void testCreateEntitySequenceWithNumberOfDigitsOutRange() {
         try {
             EntitySequence entitySequence = givenEntitySequence("prefix-"
                     + UUID.randomUUID(), EntityNameEnum.CRITERION, true);
diff --git a/navalplanner-business/src/test/java/org/navalplanner/business/common/test/dbunit/DBUnitTestExecutionListener.java b/navalplanner-business/src/test/java/org/navalplanner/business/common/test/dbunit/DBUnitTestExecutionListener.java
index 467258655..d4872fbef 100644
--- a/navalplanner-business/src/test/java/org/navalplanner/business/common/test/dbunit/DBUnitTestExecutionListener.java
+++ b/navalplanner-business/src/test/java/org/navalplanner/business/common/test/dbunit/DBUnitTestExecutionListener.java
@@ -30,6 +30,7 @@ import javax.sql.DataSource;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+import org.dbunit.DatabaseUnitException;
 import org.dbunit.database.DatabaseConfig;
 import org.dbunit.database.DatabaseConnection;
 import org.dbunit.database.IDatabaseConnection;
@@ -77,7 +78,7 @@ public class DBUnitTestExecutionListener extends
         }
     }
 
-    private DataSource getDataSource(TestContext context) throws Exception {
+    private DataSource getDataSource(TestContext context) {
         DataSource dataSource;
         Map beans = context.getApplicationContext().getBeansOfType(
                 DataSource.class);
@@ -94,7 +95,8 @@ public class DBUnitTestExecutionListener extends
     }
 
     private IDatabaseConnection getDBUnitConnection(Connection c)
-            throws Exception {
+            throws DatabaseUnitException
+            {
         IDatabaseConnection conn = new DatabaseConnection(c);
         DatabaseConfig config = conn.getConfig();
         config.setFeature("http://www.dbunit.org/features/qualifiedTableNames",
diff --git a/navalplanner-business/src/test/java/org/navalplanner/business/test/orders/entities/AddAdvanceAssignmentsToOrderElementTest.java b/navalplanner-business/src/test/java/org/navalplanner/business/test/orders/entities/AddAdvanceAssignmentsToOrderElementTest.java
index 1c7809301..21518598c 100644
--- a/navalplanner-business/src/test/java/org/navalplanner/business/test/orders/entities/AddAdvanceAssignmentsToOrderElementTest.java
+++ b/navalplanner-business/src/test/java/org/navalplanner/business/test/orders/entities/AddAdvanceAssignmentsToOrderElementTest.java
@@ -158,7 +158,9 @@ public class AddAdvanceAssignmentsToOrderElementTest {
     }
 
     @Test
-    public void savingTheOrderSavesAlsoTheAddedAssignments() throws Exception {
+    public void savingTheOrderSavesAlsoTheAddedAssignments()
+            throws DuplicateValueTrueReportGlobalAdvanceException,
+            DuplicateAdvanceAssignmentForOrderElementException {
         Order order = createValidOrder();
         OrderElement orderLine = createValidLeaf("OrderLineA", "1k1k1k1k");
 
@@ -188,7 +190,9 @@ public class AddAdvanceAssignmentsToOrderElementTest {
     }
 
     @Test
-    public void addingSeveralAssignmentsOfDifferentTypes() throws Exception {
+    public void addingSeveralAssignmentsOfDifferentTypes()
+            throws DuplicateValueTrueReportGlobalAdvanceException,
+            DuplicateAdvanceAssignmentForOrderElementException {
         Order order = createValidOrder();
         OrderLine orderLine = createValidLeaf("OrderLineA", "1111111");
 
@@ -210,7 +214,8 @@ public class AddAdvanceAssignmentsToOrderElementTest {
 
     @Test
     public void cannotAddDuplicatedAssignment()
-            throws Exception {
+            throws DuplicateValueTrueReportGlobalAdvanceException,
+            DuplicateAdvanceAssignmentForOrderElementException {
         OrderLine orderLine = createValidLeaf("OrderLineA", "22222222");
 
         AdvanceType advanceTypeA = createAndSaveType("tipoA");
@@ -232,7 +237,9 @@ public class AddAdvanceAssignmentsToOrderElementTest {
     }
 
     @Test
-    public void cannotAddTwoAssignmetsWithGlobalReportValue() throws Exception {
+    public void cannotAddTwoAssignmetsWithGlobalReportValue()
+            throws DuplicateAdvanceAssignmentForOrderElementException,
+            DuplicateValueTrueReportGlobalAdvanceException {
         OrderLine orderLine = createValidLeaf("OrderLineA", "101010101");
 
         AdvanceType advanceTypeA = createAndSaveType("tipoA");
@@ -255,7 +262,9 @@ public class AddAdvanceAssignmentsToOrderElementTest {
     }
 
     @Test
-    public void addingAssignmentsOfAnotherTypeToSon() throws Exception {
+    public void addingAssignmentsOfAnotherTypeToSon()
+            throws DuplicateValueTrueReportGlobalAdvanceException,
+            DuplicateAdvanceAssignmentForOrderElementException {
         Order validOrder = createValidOrder();
         OrderLineGroup container = OrderLineGroup.create();
         validOrder.add(container);
@@ -286,7 +295,8 @@ public class AddAdvanceAssignmentsToOrderElementTest {
 
     @Test
     public void addingAnAdvanceAssignmentIncreasesTheNumberOfAdvanceAssignments()
-            throws Exception {
+            throws DuplicateValueTrueReportGlobalAdvanceException,
+            DuplicateAdvanceAssignmentForOrderElementException {
         Order validOrder = createValidOrder();
         final OrderLineGroup container = OrderLineGroup.create();
         validOrder.add(container);
@@ -306,7 +316,9 @@ public class AddAdvanceAssignmentsToOrderElementTest {
     }
 
     @Test
-    public void cannotAddDuplicatedAssignmentToSon() throws Exception {
+    public void cannotAddDuplicatedAssignmentToSon()
+            throws DuplicateValueTrueReportGlobalAdvanceException,
+            DuplicateAdvanceAssignmentForOrderElementException {
         Order validOrder = createValidOrder();
         final OrderLineGroup father = OrderLineGroup.create();
         validOrder.add(father);
@@ -334,7 +346,9 @@ public class AddAdvanceAssignmentsToOrderElementTest {
     }
 
     @Test
-    public void cannotAddDuplicateAssignmentToGrandParent() throws Exception {
+    public void cannotAddDuplicateAssignmentToGrandParent()
+            throws DuplicateValueTrueReportGlobalAdvanceException,
+            DuplicateAdvanceAssignmentForOrderElementException {
         Order validOrder = createValidOrder();
         OrderLineGroup parent = OrderLineGroup.create();
         validOrder.add(parent);
@@ -369,7 +383,8 @@ public class AddAdvanceAssignmentsToOrderElementTest {
 
     @Test(expected = DuplicateAdvanceAssignmentForOrderElementException.class)
     public void addingAnotherAdvanceAssignmentWithAnEquivalentTypeButDifferentInstance()
-            throws Exception {
+            throws DuplicateValueTrueReportGlobalAdvanceException,
+            DuplicateAdvanceAssignmentForOrderElementException {
 
         final Order order = createValidOrder();
         final OrderLine line = createValidLeaf("GranSon", "75757");
@@ -406,7 +421,8 @@ public class AddAdvanceAssignmentsToOrderElementTest {
 
     @Test(expected = DuplicateValueTrueReportGlobalAdvanceException.class)
     public void cannotAddTwoAssignmetsDirectAndIndirectWithGlobalReportValue()
-            throws Exception {
+            throws DuplicateValueTrueReportGlobalAdvanceException,
+            DuplicateAdvanceAssignmentForOrderElementException {
         OrderLineGroup orderLineGroup = OrderLineGroup.create();
         orderLineGroup.setName("test");
         orderLineGroup.setCode("1");
diff --git a/navalplanner-business/src/test/java/org/navalplanner/business/test/orders/entities/OrderTest.java b/navalplanner-business/src/test/java/org/navalplanner/business/test/orders/entities/OrderTest.java
index 51a9184d6..8a4dea21d 100644
--- a/navalplanner-business/src/test/java/org/navalplanner/business/test/orders/entities/OrderTest.java
+++ b/navalplanner-business/src/test/java/org/navalplanner/business/test/orders/entities/OrderTest.java
@@ -63,7 +63,7 @@ public class OrderTest {
     }
 
     @Test
-    public void testAddingOrderElement() throws Exception {
+    public void testAddingOrderElement() {
         Order order = Order.create();
         order.useSchedulingDataFor(mockedOrderVersion);
         OrderLineGroup container = OrderLineGroup.create();
@@ -74,7 +74,7 @@ public class OrderTest {
     }
 
     @Test
-    public void testPreservesOrder() throws Exception {
+    public void testPreservesOrder() {
         OrderLineGroup container = OrderLineGroup.create();
         container.useSchedulingDataFor(mockedOrderVersion);
         OrderLine[] created = new OrderLine[100];
diff --git a/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/bootstrap/CriterionsBootstrapTest.java b/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/bootstrap/CriterionsBootstrapTest.java
index c889a7443..540a80d4e 100644
--- a/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/bootstrap/CriterionsBootstrapTest.java
+++ b/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/bootstrap/CriterionsBootstrapTest.java
@@ -66,7 +66,7 @@ public class CriterionsBootstrapTest {
     }
 
     @Test
-    public void testBootstrap() throws Exception {
+    public void testBootstrap() {
         givenNoSomePredefinedCriterionExists();
         criterionsBootstrap.loadRequiredData();
         thenAllSomePredefinedCriterionsExist();
diff --git a/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/daos/CriterionDAOTest.java b/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/daos/CriterionDAOTest.java
index 80b2c2f51..c5db1da19 100644
--- a/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/daos/CriterionDAOTest.java
+++ b/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/daos/CriterionDAOTest.java
@@ -114,7 +114,7 @@ public class CriterionDAOTest {
     }
 
     @Test
-    public void afterSavingACriterionItExists() throws Exception {
+    public void afterSavingACriterionItExists() {
         givenACriterionWithAnExistentType();
         criterionDAO.save(criterion);
         assertTrue(criterionDAO.exists(criterion.getId()));
diff --git a/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/daos/CriterionSatisfactionDAOTest.java b/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/daos/CriterionSatisfactionDAOTest.java
index 7601e8c75..f15f1bed7 100644
--- a/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/daos/CriterionSatisfactionDAOTest.java
+++ b/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/daos/CriterionSatisfactionDAOTest.java
@@ -69,7 +69,7 @@ public class CriterionSatisfactionDAOTest {
     private IWorkerDAO workerDAO;
 
     @Test
-    public void testSaveCriterions() throws Exception {
+    public void testSaveCriterions() {
         CriterionSatisfaction criterionSatisfaction = createValidCriterionSatisfaction(2007);
         satisfactionDAO.save(criterionSatisfaction);
         assertNotNull(criterionSatisfaction.getId());
diff --git a/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/daos/CriterionTypeDAOTest.java b/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/daos/CriterionTypeDAOTest.java
index 4248d2e8d..652d0e1a6 100644
--- a/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/daos/CriterionTypeDAOTest.java
+++ b/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/daos/CriterionTypeDAOTest.java
@@ -82,7 +82,7 @@ public class CriterionTypeDAOTest {
     }
 
     @Test
-    public void testSaveCriterionType() throws Exception {
+    public void testSaveCriterionType() {
         CriterionType criterionType = createValidCriterionType();
         criterionTypeDAO.save(criterionType);
         assertTrue(criterionTypeDAO.exists(criterionType.getId()));
diff --git a/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/entities/CriterionSatisfactionTest.java b/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/entities/CriterionSatisfactionTest.java
index 69254cbd6..088378886 100644
--- a/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/entities/CriterionSatisfactionTest.java
+++ b/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/entities/CriterionSatisfactionTest.java
@@ -58,7 +58,7 @@ public class CriterionSatisfactionTest {
     }
 
     @Test
-    public void canFinishWhenItStarted() throws Exception {
+    public void canFinishWhenItStarted() {
         final Criterion criterion = CriterionDAOTest.createValidCriterion();
         Worker worker = Worker.create("firstName", "surName", "2333232");
         LocalDate start = year(2000);
diff --git a/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/entities/CriterionTest.java b/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/entities/CriterionTest.java
index 13b221740..929ce82d5 100644
--- a/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/entities/CriterionTest.java
+++ b/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/entities/CriterionTest.java
@@ -47,7 +47,7 @@ import org.navalplanner.business.resources.entities.Worker;
 
 public class CriterionTest {
     @Test
-    public void testCreateWithAType() throws Exception {
+    public void testCreateWithAType() {
         Criterion firedCriterion = PredefinedCriterionTypes.WORK_RELATIONSHIP
                 .createCriterion("fired");
         assertTrue(PredefinedCriterionTypes.WORK_RELATIONSHIP
@@ -55,7 +55,7 @@ public class CriterionTest {
     }
 
     @Test
-    public void testCompounding() throws Exception {
+    public void testCompounding() {
         Worker worker1 = Worker.create();
         Worker worker2 = Worker.create();
 
@@ -122,12 +122,12 @@ public class CriterionTest {
     }
 
     @Test
-    public void testEmptyMatchesAll() throws Exception {
+    public void testEmptyMatchesAll() {
         assertTrue(build().getResult().isSatisfiedBy(Worker.create()));
     }
 
     @Test
-    public void testSimpleNegation() throws Exception {
+    public void testSimpleNegation() {
         Worker worker1 = Worker.create();
         Worker worker2 = Worker.create();
         Worker worker3 = Worker.create();
@@ -144,7 +144,7 @@ public class CriterionTest {
     }
 
     @Test
-    public void testNegateAnd() throws Exception {
+    public void testNegateAnd() {
         Worker worker1 = Worker.create();
         Worker worker2 = Worker.create();
         Worker worker3 = Worker.create();
@@ -157,7 +157,7 @@ public class CriterionTest {
     }
 
     @Test
-    public void testOr() throws Exception {
+    public void testOr() {
         Worker worker1 = Worker.create();
         Worker worker2 = Worker.create();
         Worker worker3 = Worker.create();
@@ -173,7 +173,7 @@ public class CriterionTest {
     }
 
     @Test
-    public void testOrHasLessPrecendenceThanAnd() throws Exception {
+    public void testOrHasLessPrecendenceThanAnd() {
         Worker worker1 = Worker.create();
         Worker worker2 = Worker.create();
         Worker worker3 = Worker.create();
@@ -189,7 +189,7 @@ public class CriterionTest {
     }
 
     @Test
-    public void testCanBeRelatedTo() throws Exception {
+    public void testCanBeRelatedTo() {
         assertTrue(PredefinedCriterionTypes.LOCATION_GROUP
                 .criterionCanBeRelatedTo(Worker.class));
         assertTrue(PredefinedCriterionTypes.WORK_RELATIONSHIP
diff --git a/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/entities/IntervalTest.java b/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/entities/IntervalTest.java
index 1abf12dec..4fc71dbb8 100644
--- a/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/entities/IntervalTest.java
+++ b/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/entities/IntervalTest.java
@@ -33,18 +33,18 @@ import org.navalplanner.business.test.resources.daos.CriterionSatisfactionDAOTes
 public class IntervalTest {
 
     @Test(expected = IllegalArgumentException.class)
-    public void testStartDateMustBeBeforeThanEndDate() throws Exception {
+    public void testStartDateMustBeBeforeThanEndDate() {
         Interval.range(CriterionSatisfactionDAOTest.year(2000),
                 CriterionSatisfactionDAOTest.year(1999));
     }
 
     @Test(expected = IllegalArgumentException.class)
-    public void testStartDateMustBeNotNull() throws Exception {
+    public void testStartDateMustBeNotNull() {
         Interval.range(null, CriterionSatisfactionDAOTest.year(1999));
     }
 
     @Test
-    public void intervalCanBeOpenEnded() throws Exception {
+    public void intervalCanBeOpenEnded() {
         Interval.range(CriterionSatisfactionDAOTest.year(1990), null);
     }
 
@@ -68,7 +68,7 @@ public class IntervalTest {
     }
 
     @Test
-    public void testPointsOnlyContainsThemselves() throws Exception {
+    public void testPointsOnlyContainsThemselves() {
         Interval point = Interval
                 .point(CriterionSatisfactionDAOTest.year(1990));
         assertTrue(point.contains(CriterionSatisfactionDAOTest.year(1990)));
@@ -77,7 +77,7 @@ public class IntervalTest {
 
     @Test
     public void testIntervalsAreStartInclusiveAndEndExclusive()
-            throws Exception {
+            {
         Interval range = Interval.range(year(1990), year(2000));
         assertTrue(range.contains(year(1990)));
         assertFalse(range.contains(year(2000)));
@@ -86,7 +86,7 @@ public class IntervalTest {
     }
 
     @Test
-    public void testIncludes() throws Exception {
+    public void testIncludes() {
         Interval bigRange = Interval.range(year(1990), year(2000));
         Interval included = Interval.range(year(1990), year(1998));
         Interval point = Interval.point(year(1996));
@@ -96,7 +96,7 @@ public class IntervalTest {
     }
 
     @Test
-    public void testStartPointDoesntOverlapsWithRange() throws Exception {
+    public void testStartPointDoesntOverlapsWithRange() {
         Interval range = Interval.range(year(1990), year(2005));
         Interval openEndedRange = Interval.from(year(1990));
         Interval point = Interval.point(year(1990));
@@ -136,7 +136,7 @@ public class IntervalTest {
 
     @Test
     public void testIntervalFinishingAtTheStartOfOtherDontOverlap()
-            throws Exception {
+            {
         Interval range = Interval.range(year(2000), year(2005));
         Interval from = Interval.from(year(2000));
         Interval before = Interval.range(year(1995), year(2000));
@@ -159,7 +159,7 @@ public class IntervalTest {
     }
 
     @Test
-    public void testCreatingPointWithRange() throws Exception {
+    public void testCreatingPointWithRange() {
         Interval point = Interval.point(year(1990));
         Interval range = Interval.range(year(1990), year(1990));
         assertEquals(point, range);
diff --git a/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/entities/ResourceTest.java b/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/entities/ResourceTest.java
index 80e312afb..bb151b7b8 100644
--- a/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/entities/ResourceTest.java
+++ b/navalplanner-business/src/test/java/org/navalplanner/business/test/resources/entities/ResourceTest.java
@@ -116,7 +116,7 @@ public class ResourceTest {
     }
 
     @Test
-    public void testRetrieveActiveCriterionsForCriterionType() throws Exception {
+    public void testRetrieveActiveCriterionsForCriterionType() {
         final Criterion criterion = CriterionDAOTest.createValidCriterion();
         Criterion otherCriterion = CriterionDAOTest.createValidCriterion();
         ICriterionType<Criterion> criterionType = createTypeThatMatches(criterion);
@@ -136,7 +136,7 @@ public class ResourceTest {
     }
 
     @Test
-    public void testActiveCriterions() throws Exception {
+    public void testActiveCriterions() {
         final Criterion criterion = CriterionDAOTest.createValidCriterion();
         Criterion otherCriterion = CriterionDAOTest.createValidCriterion();
         ICriterionType<Criterion> type = createTypeThatMatches(criterion,
@@ -196,7 +196,7 @@ public class ResourceTest {
 
     @Test
     public void testRetrieveSatisfactionsInIntervalForCriterionType()
-            throws Exception {
+            {
         Criterion criterion = CriterionDAOTest.createValidCriterion();
         ICriterionType<Criterion> criterionType = createTypeThatMatches(criterion);
         CriterionWithItsType criterionWithItsType = new CriterionWithItsType(
@@ -226,7 +226,7 @@ public class ResourceTest {
     }
 
     @Test(expected = IllegalArgumentException.class)
-    public void invalidadCriterionWithItsTypeNotAllowd() throws Exception {
+    public void invalidadCriterionWithItsTypeNotAllowd() {
         Criterion criterion = CriterionDAOTest.createValidCriterion();
         Criterion otherCriterion = CriterionDAOTest.createValidCriterion();
         ICriterionType<Criterion> criterionType = createTypeThatMatches(criterion);
@@ -272,7 +272,7 @@ public class ResourceTest {
     }
 
     @Test
-    public void testAddAtDate() throws Exception {
+    public void testAddAtDate() {
         Criterion criterion = CriterionDAOTest.createValidCriterion();
         Criterion otherCriterion = CriterionDAOTest.createValidCriterion();
         Worker worker = Worker.create("firstName", "surName", "2333232");
@@ -441,7 +441,7 @@ public class ResourceTest {
                 criterionType, criterion), intervalE));
     }
 
-    public void testAddCriterionSatisfaction() throws Exception {
+    public void testAddCriterionSatisfaction() {
         Criterion criterion = CriterionDAOTest.createValidCriterion();
         Worker worker = Worker.create("firstName", "surName", "2333232");
         ICriterionType<Criterion> criterionType = createTypeThatMatches(false,
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/advance/AdvanceTypeCRUDController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/advance/AdvanceTypeCRUDController.java
index 67ae72fc6..232e3e038 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/advance/AdvanceTypeCRUDController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/advance/AdvanceTypeCRUDController.java
@@ -285,7 +285,7 @@ public class AdvanceTypeCRUDController extends GenericForwardComposer {
         return new RowRenderer() {
 
             @Override
-            public void render(Row row, Object data) throws Exception {
+            public void render(Row row, Object data) {
                 final AdvanceType advanceType = (AdvanceType) data;
                 appendLabelName(row, advanceType);
                 appendCheckboxEnabled(row, advanceType);
@@ -293,7 +293,7 @@ public class AdvanceTypeCRUDController extends GenericForwardComposer {
                 appendOperations(row, advanceType);
                 row.addEventListener(Events.ON_CLICK, new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         goToEditForm(advanceType);
                     }
                 });
@@ -324,7 +324,7 @@ public class AdvanceTypeCRUDController extends GenericForwardComposer {
                 hbox.appendChild(Util.createEditButton(new EventListener() {
 
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         goToEditForm(advanceType);
                     }
                 }));
@@ -333,7 +333,7 @@ public class AdvanceTypeCRUDController extends GenericForwardComposer {
                         .createRemoveButton(new EventListener() {
 
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                            public void onEvent(Event event) {
                         confirmRemove(advanceType);
                     }
                 });
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/calendars/BaseCalendarCRUDController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/calendars/BaseCalendarCRUDController.java
index 570e30cd2..a490b085b 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/calendars/BaseCalendarCRUDController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/calendars/BaseCalendarCRUDController.java
@@ -280,7 +280,7 @@ public class BaseCalendarCRUDController extends GenericForwardComposer {
     public class BaseCalendarsTreeitemRenderer implements TreeitemRenderer {
 
         @Override
-        public void render(Treeitem item, Object data) throws Exception {
+        public void render(Treeitem item, Object data) {
             SimpleTreeNode simpleTreeNode = (SimpleTreeNode) data;
             final BaseCalendar baseCalendar = (BaseCalendar) simpleTreeNode
                     .getData();
@@ -305,7 +305,7 @@ public class BaseCalendarCRUDController extends GenericForwardComposer {
                     new EventListener() {
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     goToCreateDerivedForm(baseCalendar);
                 }
 
@@ -321,7 +321,7 @@ public class BaseCalendarCRUDController extends GenericForwardComposer {
                     new EventListener() {
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     goToCreateCopyForm(baseCalendar);
                 }
 
@@ -337,7 +337,7 @@ public class BaseCalendarCRUDController extends GenericForwardComposer {
             editButton.addEventListener(Events.ON_CLICK, new EventListener() {
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     goToEditForm(baseCalendar);
                 }
 
@@ -353,7 +353,7 @@ public class BaseCalendarCRUDController extends GenericForwardComposer {
             removeButton.addEventListener(Events.ON_CLICK, new EventListener() {
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     confirmRemove(baseCalendar);
                 }
 
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/calendars/BaseCalendarEditionController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/calendars/BaseCalendarEditionController.java
index 35af3f72c..36aca798c 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/calendars/BaseCalendarEditionController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/calendars/BaseCalendarEditionController.java
@@ -233,7 +233,7 @@ public abstract class BaseCalendarEditionController extends
         exceptionTypes.addEventListener(Events.ON_SELECT, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 Comboitem selectedItem = getSelectedItem((SelectEvent) event);
                 if (selectedItem != null) {
                     updateWithCapacityFrom(getValue(selectedItem));
@@ -301,7 +301,7 @@ public abstract class BaseCalendarEditionController extends
         parentCalendars.addEventListener(Events.ON_SELECT, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 BaseCalendar selected = (BaseCalendar) parentCalendars
                         .getSelectedItem().getValue();
                 baseCalendarModel.setParent(selected);
@@ -341,7 +341,7 @@ public abstract class BaseCalendarEditionController extends
     public class HoursPerDayRenderer implements ListitemRenderer {
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             final Days day = (Days) data;
 
             addLabelCell(item, day);
@@ -396,7 +396,7 @@ public abstract class BaseCalendarEditionController extends
                         new EventListener() {
 
                             @Override
-                            public void onEvent(Event event) throws Exception {
+                            public void onEvent(Event event) {
                                 reloadCurrentWindow();
                             }
 
@@ -710,7 +710,7 @@ public abstract class BaseCalendarEditionController extends
     public class HistoryVersionsRenderer implements ListitemRenderer {
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             CalendarData calendarData = (CalendarData) data;
             item.setValue(calendarData);
 
@@ -786,7 +786,7 @@ public abstract class BaseCalendarEditionController extends
                     _("Delete"), "/common/img/ico_borrar.png", "icono",
                     new EventListener() {
                         @Override
-                        public void onEvent(Event event) throws Exception {
+                        public void onEvent(Event event) {
                             baseCalendarModel.removeCalendarData(calendarData);
                             reloadCurrentWindow();
                         }
@@ -814,7 +814,7 @@ public abstract class BaseCalendarEditionController extends
         private void addEventListener(Listitem item) {
             item.addEventListener(Events.ON_CLICK, new EventListener() {
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     Listitem item = (Listitem) event.getTarget();
                     CalendarData calendarData = (CalendarData) item.getValue();
 
@@ -928,7 +928,7 @@ public abstract class BaseCalendarEditionController extends
     public class CalendarExceptionRenderer implements ListitemRenderer {
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             CalendarException calendarException = (CalendarException) data;
             item.setValue(calendarException);
 
@@ -1044,7 +1044,7 @@ public abstract class BaseCalendarEditionController extends
                     _("Delete"), "/common/img/ico_borrar.png", "icono",
                     new EventListener() {
                         @Override
-                        public void onEvent(Event event) throws Exception {
+                        public void onEvent(Event event) {
                             baseCalendarModel
                                     .removeException(calendarException
                                     .getDate());
@@ -1144,7 +1144,7 @@ public abstract class BaseCalendarEditionController extends
     public class CalendarAvailabilityRenderer implements ListitemRenderer {
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             CalendarAvailability calendarAvailability = (CalendarAvailability) data;
             item.setValue(calendarAvailability);
 
@@ -1295,7 +1295,7 @@ public abstract class BaseCalendarEditionController extends
                     _("Delete"), "/common/img/ico_borrar.png", "icono",
                     new EventListener() {
                         @Override
-                        public void onEvent(Event event) throws Exception {
+                        public void onEvent(Event event) {
                             baseCalendarModel
                                     .removeCalendarAvailability(calendarAvailability);
                             reloadDayInformation();
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/ConfigurationController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/ConfigurationController.java
index 8c6bc5ce5..5138c5d23 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/ConfigurationController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/ConfigurationController.java
@@ -108,7 +108,7 @@ public class ConfigurationController extends GenericForwardComposer {
         defaultCalendarBandboxSearch.setListboxEventListener(Events.ON_SELECT,
                 new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         Listitem selectedItem = (Listitem) ((SelectEvent) event)
                                 .getSelectedItems().iterator().next();
                         setDefaultCalendar((BaseCalendar) selectedItem
@@ -131,7 +131,7 @@ public class ConfigurationController extends GenericForwardComposer {
         lbTypeProgress.addEventListener(Events.ON_SELECT, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 Listitem selectedItem = getSelectedItem((SelectEvent) event);
                 if (selectedItem != null) {
                     ProgressType progressType = (ProgressType) selectedItem.getValue();
@@ -447,7 +447,7 @@ public class ConfigurationController extends GenericForwardComposer {
     private static class ProgressTypeRenderer implements ListitemRenderer {
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             ProgressType progressType = (ProgressType) data;
             item.setLabel(_(progressType.getValue()));
         }
@@ -456,7 +456,7 @@ public class ConfigurationController extends GenericForwardComposer {
 
     public class EntitySequenceGroupRenderer implements RowRenderer {
         @Override
-        public void render(Row row, Object data) throws Exception {
+        public void render(Row row, Object data) {
 
             EntitySequence entitySequence = (EntitySequence) data;
             final EntityNameEnum entityName = entitySequence.getEntityName();
@@ -472,7 +472,7 @@ public class ConfigurationController extends GenericForwardComposer {
                                 .getSequenceLiteral())));
                 group.addEventListener(Events.ON_OPEN, new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         onOpenGroup(entityName, group.isOpen());
                     }
                 });
@@ -607,7 +607,7 @@ public class ConfigurationController extends GenericForwardComposer {
                     .createRemoveButton(new EventListener() {
 
                         @Override
-                        public void onEvent(Event event) throws Exception {
+                        public void onEvent(Event event) {
                             if (isLastOne(entitySequence)) {
                                 showMessageNotDelete();
                             } else {
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/EnumsListitemRenderer.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/EnumsListitemRenderer.java
index 5c86d2cb4..3425f5f78 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/EnumsListitemRenderer.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/EnumsListitemRenderer.java
@@ -41,7 +41,7 @@ import org.zkoss.zul.ListitemRenderer;
 public class EnumsListitemRenderer implements ListitemRenderer {
 
     @Override
-    public void render(Listitem item, Object data) throws Exception {
+    public void render(Listitem item, Object data) {
         item.setValue(data);
         item.appendChild(new Listcell(_(data.toString())));
     }
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/MessagesForUser.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/MessagesForUser.java
index 7aee52cae..11ebf4121 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/MessagesForUser.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/MessagesForUser.java
@@ -165,7 +165,7 @@ public class MessagesForUser extends GenericForwardComposer implements
         messageEntry.addEventListener(DETACH_EVENT_NAME, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 pendingToDetach.offer(new ComponentHolderTimestamped(
                         messageEntry));
             }
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/OnTabSelection.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/OnTabSelection.java
index f876f9aa3..bed454361 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/OnTabSelection.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/OnTabSelection.java
@@ -52,7 +52,7 @@ public class OnTabSelection {
         tabBox.addEventListener(Events.ON_SELECT, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 SelectEvent e = (SelectEvent) event;
                 for (Object each : e.getSelectedItems()) {
                     if (tabs.get(each) != null) {
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/Util.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/Util.java
index 5d7c7211d..710d7eb51 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/Util.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/Util.java
@@ -161,7 +161,7 @@ public class Util {
         textBox.addEventListener(Events.ON_CHANGE, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 InputEvent newInput = (InputEvent) event;
                 String value = newInput.getValue();
                 setter.set(value);
@@ -205,7 +205,7 @@ public class Util {
         comboBox.addEventListener("onSelect", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 setter.set(comboBox.getSelectedItem());
                 comboBox.setSelectedItem(getter.get());
             }
@@ -247,7 +247,7 @@ public class Util {
         intBox.addEventListener(Events.ON_CHANGE, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 InputEvent newInput = (InputEvent) event;
                 String value = newInput.getValue().trim();
                 if (value.isEmpty()) {
@@ -294,7 +294,7 @@ public class Util {
         dateBox.addEventListener(Events.ON_CHANGE, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 setter.set(dateBox.getValue());
                 dateBox.setValue(getter.get());
             }
@@ -336,7 +336,7 @@ public class Util {
         timeBox.addEventListener(Events.ON_CHANGE, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 setter.set(timeBox.getValue());
                 timeBox.setValue(getter.get());
             }
@@ -380,7 +380,7 @@ public class Util {
         decimalBox.addEventListener(Events.ON_CHANGE, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 setter.set(decimalBox.getValue());
                 decimalBox.setValue(getter.get());
             }
@@ -423,7 +423,7 @@ public class Util {
         checkBox.addEventListener(Events.ON_CHECK, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 setter.set(checkBox.isChecked());
                 checkBox.setChecked(getter.get());
             }
@@ -466,7 +466,7 @@ public class Util {
         radio.addEventListener(Events.ON_CHECK, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 setter.set(radio.isSelected());
                 radio.setChecked(getter.get());
             }
@@ -510,7 +510,7 @@ public class Util {
         bandBox.addEventListener(Events.ON_CHANGE, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 InputEvent newInput = (InputEvent) event;
                 String value = newInput.getValue();
                 setter.set(value);
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/ViewSwitcher.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/ViewSwitcher.java
index 3a693188f..7c215d9ea 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/ViewSwitcher.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/ViewSwitcher.java
@@ -49,7 +49,7 @@ public class ViewSwitcher implements Composer {
     private boolean isInPlanningOrder = false;
 
     @Override
-    public void doAfterCompose(org.zkoss.zk.ui.Component comp) throws Exception {
+    public void doAfterCompose(org.zkoss.zk.ui.Component comp) {
         this.parent = comp;
         isInPlanningOrder = true;
     }
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/Autocomplete.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/Autocomplete.java
index 648600bb6..2e7b42df4 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/Autocomplete.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/Autocomplete.java
@@ -81,7 +81,7 @@ public class Autocomplete extends Combobox {
         autocomplete.addEventListener("onChange", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 String text = autocomplete.getValue();
                 Object object = getItemByText(text);
                 autocomplete.setSelectedItem(object);
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/EffortDurationPicker.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/EffortDurationPicker.java
index 4bb9c92bb..0a180555e 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/EffortDurationPicker.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/EffortDurationPicker.java
@@ -137,7 +137,7 @@ public class EffortDurationPicker extends Hbox {
             Spinner... spinners) {
         EventListener listener = new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 notifySetterOfChange(setter);
             }
         };
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/NewDataSortableGrid.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/NewDataSortableGrid.java
index 5f3375a50..93c6f092e 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/NewDataSortableGrid.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/NewDataSortableGrid.java
@@ -50,7 +50,7 @@ public class NewDataSortableGrid extends Grid implements AfterCompose {
     public NewDataSortableGrid() {
         addEventListener(Events.ON_SORT, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                     sortByLastColumn();
             }
         });
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/bandboxsearch/BandboxMultipleSearch.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/bandboxsearch/BandboxMultipleSearch.java
index 02392ad15..71d27ffac 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/bandboxsearch/BandboxMultipleSearch.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/bandboxsearch/BandboxMultipleSearch.java
@@ -96,14 +96,14 @@ public class BandboxMultipleSearch extends HtmlMacroComponent {
         listbox.addEventListener(Events.ON_CLICK, new EventListener() {
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                 pickElementFromListAndCloseBandbox();
                 }
             });
         listbox.addEventListener(Events.ON_OK, new EventListener() {
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                 pickElementFromListAndCloseBandbox();
                 }
             });
@@ -116,7 +116,7 @@ public class BandboxMultipleSearch extends HtmlMacroComponent {
         bandbox.addEventListener("onChanging", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 final String inputText = ((InputEvent) event).getValue();
                 if ((inputText == null) || (inputText.isEmpty())) {
                     clear();
@@ -130,7 +130,7 @@ public class BandboxMultipleSearch extends HtmlMacroComponent {
         bandbox.addEventListener(Events.ON_CTRL_KEY, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 List<Listitem> items = listbox.getItems();
                 if (!items.isEmpty()) {
                     listbox.setSelectedIndex(0);
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/bandboxsearch/BandboxSearch.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/bandboxsearch/BandboxSearch.java
index d33942f38..16aad5f1d 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/bandboxsearch/BandboxSearch.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/bandboxsearch/BandboxSearch.java
@@ -94,7 +94,7 @@ public class BandboxSearch extends HtmlMacroComponent {
         bandbox.addEventListener("onChanging", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 clearSelectedElement();
                 final String inputText = ((InputEvent) event).getValue();
                 listbox.setModel(getSubModel(inputText));
@@ -106,7 +106,7 @@ public class BandboxSearch extends HtmlMacroComponent {
         bandbox.addEventListener(Events.ON_CTRL_KEY, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 int selectedItemIndex = listbox.getSelectedIndex();
                 if (selectedItemIndex != -1) {
                     listbox.getItemAtIndexApi(selectedItemIndex).setFocus(true);
@@ -127,7 +127,7 @@ public class BandboxSearch extends HtmlMacroComponent {
         listbox.addEventListener(Events.ON_SELECT, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 pickElementFromList();
             }
         });
@@ -136,14 +136,14 @@ public class BandboxSearch extends HtmlMacroComponent {
         listbox.addEventListener(Events.ON_CLICK, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 close();
             }
         });
         listbox.addEventListener(Events.ON_OK, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 pickElementFromList();
                 close();
             }
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/BandboxFinder.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/BandboxFinder.java
index d0dfc1abb..b97064857 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/BandboxFinder.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/BandboxFinder.java
@@ -78,7 +78,7 @@ public abstract class BandboxFinder implements IBandboxFinder {
     private final ListitemRenderer _defRend = new ListitemRenderer() {
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             item.setLabel(objectToString(data));
             item.setValue(data);
         }
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/BaseCalendarBandboxFinder.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/BaseCalendarBandboxFinder.java
index b36bb94d5..14707854b 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/BaseCalendarBandboxFinder.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/BaseCalendarBandboxFinder.java
@@ -91,7 +91,7 @@ public class BaseCalendarBandboxFinder extends BandboxFinder implements IBandbox
     private final ListitemRenderer baseCalendarRenderer = new ListitemRenderer() {
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             BaseCalendar baseCalendar = (BaseCalendar) data;
             item.setValue(baseCalendar);
 
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/CriterionBandboxFinder.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/CriterionBandboxFinder.java
index 5df87357e..af2b98502 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/CriterionBandboxFinder.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/CriterionBandboxFinder.java
@@ -98,7 +98,7 @@ public class CriterionBandboxFinder extends BandboxFinder implements IBandboxFin
     private final ListitemRenderer orderRenderer = new ListitemRenderer() {
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             Criterion criterion = (Criterion)data;
             item.setValue(criterion);
 
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/ExternalCompanyBandboxFinder.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/ExternalCompanyBandboxFinder.java
index 8d0bb8878..397f1e202 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/ExternalCompanyBandboxFinder.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/ExternalCompanyBandboxFinder.java
@@ -107,7 +107,7 @@ public class ExternalCompanyBandboxFinder extends BandboxFinder implements
     private final ListitemRenderer externalCompanyRenderer = new ListitemRenderer() {
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             ExternalCompany externalCompany = (ExternalCompany) data;
 
             item.setValue(data);
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/Finder.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/Finder.java
index 33ed3bcd9..950305082 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/Finder.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/Finder.java
@@ -84,7 +84,7 @@ public abstract class Finder implements IFinder {
     private class ComboWorkerRenderer implements ComboitemRenderer {
 
         @Override
-        public void render(Comboitem item, Object data) throws Exception {
+        public void render(Comboitem item, Object data) {
             item.setLabel(_toString(data));
             item.setValue(data);
         }
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/LabelBandboxFinder.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/LabelBandboxFinder.java
index 6ed342c77..3f508966e 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/LabelBandboxFinder.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/LabelBandboxFinder.java
@@ -108,7 +108,7 @@ public class LabelBandboxFinder extends BandboxFinder implements IBandboxFinder
     private final ListitemRenderer labelRenderer = new ListitemRenderer() {
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             Label label = (Label) data;
 
             item.setValue(data);
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/MultipleFiltersFinder.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/MultipleFiltersFinder.java
index bbc36bfeb..cf5cdf675 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/MultipleFiltersFinder.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/MultipleFiltersFinder.java
@@ -195,7 +195,7 @@ public abstract class MultipleFiltersFinder implements IMultipleFiltersFinder {
     private final ListitemRenderer filterPairRenderer = new ListitemRenderer() {
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             FilterPair filterPair = (FilterPair) data;
             item.setValue(data);
 
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/OrderBandboxFinder.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/OrderBandboxFinder.java
index 1ccb4766e..ecba72dc3 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/OrderBandboxFinder.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/OrderBandboxFinder.java
@@ -85,7 +85,7 @@ public class OrderBandboxFinder extends BandboxFinder implements IBandboxFinder
     private final ListitemRenderer orderRenderer = new ListitemRenderer() {
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             Order order = (Order) data;
             item.setValue(order);
 
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/OrderElementBandboxFinder.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/OrderElementBandboxFinder.java
index 355a401a8..06c2c1a1e 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/OrderElementBandboxFinder.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/OrderElementBandboxFinder.java
@@ -105,7 +105,7 @@ public class OrderElementBandboxFinder extends BandboxFinder implements IBandbox
     private final ListitemRenderer orderElementRenderer = new ListitemRenderer() {
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             OrderElement orderElement = (OrderElement) data;
             item.setValue(orderElement);
 
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/QualityFormBandboxFinder.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/QualityFormBandboxFinder.java
index 8475f08ca..e0ce08e00 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/QualityFormBandboxFinder.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/QualityFormBandboxFinder.java
@@ -112,7 +112,7 @@ public class QualityFormBandboxFinder extends BandboxFinder implements
     private final ListitemRenderer qualityFormRenderer = new ListitemRenderer() {
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             QualityForm qualityForm = (QualityForm) data;
             item.setValue(data);
 
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/ScenarioBandboxFinder.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/ScenarioBandboxFinder.java
index a5a40f2a7..618066e43 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/ScenarioBandboxFinder.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/ScenarioBandboxFinder.java
@@ -91,7 +91,7 @@ public class ScenarioBandboxFinder extends BandboxFinder implements IBandboxFind
     private final ListitemRenderer scenarioRenderer = new ListitemRenderer() {
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             Scenario scenario = (Scenario) data;
             item.setValue(scenario);
 
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/TemplateFinder.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/TemplateFinder.java
index 5c5069301..dee28d957 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/TemplateFinder.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/components/finders/TemplateFinder.java
@@ -55,7 +55,7 @@ public abstract class TemplateFinder<T extends OrderElementTemplate> extends
         return new ListitemRenderer() {
 
             @Override
-            public void render(Listitem item, Object data) throws Exception {
+            public void render(Listitem item, Object data) {
                 T template = type.cast(data);
                 item.setValue(data);
                 generateColumnsForRenderer(item, template);
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/entrypoints/EntryPointsHandler.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/entrypoints/EntryPointsHandler.java
index 1ba3505ed..6c3d5a68d 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/common/entrypoints/EntryPointsHandler.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/common/entrypoints/EntryPointsHandler.java
@@ -312,7 +312,7 @@ public class EntryPointsHandler<T> {
         page.addEventListener("onBookmarkChange", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 BookmarkEvent bookmarkEvent = (BookmarkEvent) event;
                 String bookmark = bookmarkEvent.getBookmark();
                 applyIfMatches(controller, bookmark);
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/costcategories/CostCategoryCRUDController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/costcategories/CostCategoryCRUDController.java
index f464980bd..4dea72500 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/costcategories/CostCategoryCRUDController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/costcategories/CostCategoryCRUDController.java
@@ -114,7 +114,7 @@ public class CostCategoryCRUDController extends GenericForwardComposer
         listCostCategories.addEventListener("onInitRender", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                 listCostCategories.renderAll();
 
                 final Rows rows = listCostCategories.getRows();
@@ -320,7 +320,7 @@ public class CostCategoryCRUDController extends GenericForwardComposer
         lbHoursType.addEventListener(Events.ON_SELECT, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 Listitem item = lbHoursType.getSelectedItem();
                 if (item != null) {
                     setHoursType((HourCost) row.getValue(), item);
@@ -362,7 +362,7 @@ public class CostCategoryCRUDController extends GenericForwardComposer
         delete.setTooltiptext(_("Delete"));
         delete.addEventListener(Events.ON_CLICK, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 confirmRemove((HourCost) row.getValue());
             }
         });
@@ -422,7 +422,7 @@ public class CostCategoryCRUDController extends GenericForwardComposer
         initDateBox.addEventListener("onChange", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 // Updates the constraint of the endDate box with the new date
                 LocalDate initDate = ((HourCost)row.getValue()).getInitDate();
                 Datebox endDateBox = (Datebox) row.getChildren().get(4);
@@ -602,7 +602,7 @@ public class CostCategoryCRUDController extends GenericForwardComposer
     public class HourCostListRenderer implements RowRenderer {
 
         @Override
-        public void render(Row row, Object data) throws Exception {
+        public void render(Row row, Object data) {
             HourCost hourCost = (HourCost) data;
 
             row.setValue(hourCost);
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/costcategories/ResourcesCostCategoryAssignmentController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/costcategories/ResourcesCostCategoryAssignmentController.java
index 105cc533d..f8b8ae667 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/costcategories/ResourcesCostCategoryAssignmentController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/costcategories/ResourcesCostCategoryAssignmentController.java
@@ -123,7 +123,7 @@ public class ResourcesCostCategoryAssignmentController extends GenericForwardCom
         autocomplete.addEventListener("onSelect", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 final Comboitem comboitem = autocomplete.getSelectedItem();
 
                 if(comboitem != null) {
@@ -163,7 +163,7 @@ public class ResourcesCostCategoryAssignmentController extends GenericForwardCom
         delete.setTooltiptext(_("Delete"));
         delete.addEventListener(Events.ON_CLICK, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 confirmRemove((ResourcesCostCategoryAssignment) row.getValue());
             }
         });
@@ -184,7 +184,7 @@ public class ResourcesCostCategoryAssignmentController extends GenericForwardCom
         initDateBox.addEventListener("onChange", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 // Updates the constraint of the endDate box with the new date
                 LocalDate initDate = ((ResourcesCostCategoryAssignment)row.getValue()).getInitDate();
                 Datebox endDateBox = (Datebox) row.getChildren().get(2);
@@ -297,7 +297,7 @@ public class ResourcesCostCategoryAssignmentController extends GenericForwardCom
     public class CostCategoryAssignmentRenderer implements RowRenderer {
 
         @Override
-        public void render(Row row, Object data) throws Exception {
+        public void render(Row row, Object data) {
             ResourcesCostCategoryAssignment assignment =
                 (ResourcesCostCategoryAssignment) data;
 
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/labels/LabelTypeCRUDController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/labels/LabelTypeCRUDController.java
index 1e8ae450d..4c2b8bb82 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/labels/LabelTypeCRUDController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/labels/LabelTypeCRUDController.java
@@ -107,7 +107,7 @@ public class LabelTypeCRUDController extends GenericForwardComposer {
         gridLabels.addEventListener("onInitRender", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 gridLabels.renderAll();
 
                 final Rows rows = gridLabels.getRows();
@@ -141,7 +141,7 @@ public class LabelTypeCRUDController extends GenericForwardComposer {
         gridLabelTypes.addEventListener("onInitRender", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 gridLabelTypes.renderAll();
 
                 final Rows rows = gridLabelTypes.getRows();
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/limitingresources/LimitingResourcesController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/limitingresources/LimitingResourcesController.java
index c8306362f..a50f58d79 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/limitingresources/LimitingResourcesController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/limitingresources/LimitingResourcesController.java
@@ -415,7 +415,7 @@ public class LimitingResourcesController extends GenericForwardComposer {
     private class LimitingResourceQueueElementsRenderer implements RowRenderer {
 
         @Override
-        public void render(Row row, Object data) throws Exception {
+        public void render(Row row, Object data) {
             LimitingResourceQueueElementDTO element = (LimitingResourceQueueElementDTO) data;
 
             row.setValue(data);
@@ -446,7 +446,7 @@ public class LimitingResourcesController extends GenericForwardComposer {
             result.addEventListener(Events.ON_CLICK, new EventListener() {
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     LimitingResourceQueueElement queueElement = element.getOriginal();
 
                     editResourceAllocation(queueElement);
@@ -465,7 +465,7 @@ public class LimitingResourcesController extends GenericForwardComposer {
             result.addEventListener(Events.ON_CLICK, new EventListener() {
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     showManualAllocationWindow(element.getOriginal());
                 }
             });
@@ -480,7 +480,7 @@ public class LimitingResourcesController extends GenericForwardComposer {
             result.addEventListener(Events.ON_CLICK, new EventListener() {
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     removeUnassignedLimitingResourceQueueElement(element);
                 }
             });
@@ -504,7 +504,7 @@ public class LimitingResourcesController extends GenericForwardComposer {
             result.addEventListener(Events.ON_CLICK, new EventListener() {
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     assignLimitingResourceQueueElement(element);
                 }
             });
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/limitingresources/LimitingResourcesLeftPane.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/limitingresources/LimitingResourcesLeftPane.java
index 43c495a1b..552317921 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/limitingresources/LimitingResourcesLeftPane.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/limitingresources/LimitingResourcesLeftPane.java
@@ -53,7 +53,7 @@ public class LimitingResourcesLeftPane extends HtmlMacroComponent {
         return new TreeitemRenderer() {
             @Override
             public void render(Treeitem item, Object data)
-                    throws Exception {
+                    {
                 LimitingResourceQueue line = (LimitingResourceQueue) data;
                 item.setOpen(false);
                 item.setValue(line);
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/limitingresources/LimitingResourcesPanel.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/limitingresources/LimitingResourcesPanel.java
index e22e96beb..60d4233e6 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/limitingresources/LimitingResourcesPanel.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/limitingresources/LimitingResourcesPanel.java
@@ -213,7 +213,7 @@ public class LimitingResourcesPanel extends HtmlMacroComponent {
         Button result = new Button();
         result.addEventListener(Events.ON_CLICK, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 c.doAction();
             }
         });
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/limitingresources/ManualAllocationController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/limitingresources/ManualAllocationController.java
index 01193a621..d2ca643e9 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/limitingresources/ManualAllocationController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/limitingresources/ManualAllocationController.java
@@ -103,7 +103,7 @@ public class ManualAllocationController extends GenericForwardComposer {
     }
 
     @Override
-    public void doAfterCompose(org.zkoss.zk.ui.Component comp) throws Exception {
+    public void doAfterCompose(org.zkoss.zk.ui.Component comp) {
         this.self = comp;
         self.setVariable("manualAllocationController", this, true);
         listAssignableQueues = (Listbox) self.getFellowIfAny("listAssignableQueues");
@@ -234,7 +234,7 @@ public class ManualAllocationController extends GenericForwardComposer {
         listAssignableQueues.addEventListener(Events.ON_SELECT, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 SelectEvent se = (SelectEvent) event;
 
                 LimitingResourceQueue queue = getSelectedQueue(se);
@@ -476,7 +476,7 @@ public class ManualAllocationController extends GenericForwardComposer {
     private static class CandidateGapRenderer implements ListitemRenderer {
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             Gap gap = (Gap) data;
 
             item.setValue(gap);
@@ -532,7 +532,7 @@ public class ManualAllocationController extends GenericForwardComposer {
     private static class QueueRenderer implements ListitemRenderer {
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             final LimitingResourceQueue queue = (LimitingResourceQueue) data;
             item.setValue(queue);
 //            item.setLabel("test1");
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/limitingresources/QueueTask.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/limitingresources/QueueTask.java
index 93a7e35d5..a15be4e46 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/limitingresources/QueueTask.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/limitingresources/QueueTask.java
@@ -58,7 +58,7 @@ public class QueueTask extends Div {
         final String taskUid = this.getUuid();
         this.addEventListener(Events.ON_CLICK, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 Clients
                         .evalJavaScript("zkLimitingDependencies.toggleDependenciesForQueueElement('"
                                 + taskUid + "')");
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/materials/MaterialsController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/materials/MaterialsController.java
index fbee9bd45..fda915637 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/materials/MaterialsController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/materials/MaterialsController.java
@@ -113,7 +113,7 @@ public class MaterialsController extends
         gridMaterials.addEventListener("onInitRender", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 gridMaterials.renderAll();
 
                 final Rows rows = gridMaterials.getRows();
@@ -177,21 +177,21 @@ public class MaterialsController extends
          * Copied verbatim from org.zkoss.zul.Tree;
          */
         @Override
-        public void render(Treeitem ti, Object node) throws Exception {
+        public void render(Treeitem ti, Object node) {
             final MaterialCategory materialCategory = (MaterialCategory) node;
 
             final Textbox tb = new Textbox(materialCategory.getName());
             tb.setWidth("90%");
             tb.addEventListener("onChange", new EventListener() {
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     final InputEvent ie = (InputEvent) event;
                     materialCategory.setName(ie.getValue());
                 }
             });
             tb.addEventListener("onFocus", new EventListener() {
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     ((Treeitem)tb.getParent().getParent().getParent()).setSelected(true);
                     refreshMaterials();
                 }
@@ -216,14 +216,14 @@ public class MaterialsController extends
             codeTb.setDisabled(materialCategory.isCodeAutogenerated());
             codeTb.addEventListener("onChange", new EventListener() {
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     final InputEvent ie = (InputEvent) event;
                     materialCategory.setCode(ie.getValue());
                 }
             });
             codeTb.addEventListener("onFocus", new EventListener() {
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     ((Treeitem)codeTb.getParent().getParent().getParent()).setSelected(true);
                     refreshMaterials();
                 }
@@ -236,7 +236,7 @@ public class MaterialsController extends
             cb.setChecked(materialCategory.isCodeAutogenerated());
             cb.addEventListener("onCheck", new EventListener() {
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     final CheckEvent ce = (CheckEvent) event;
                     materialCategory.setCodeAutogenerated(ce.isChecked());
                     if (ce.isChecked()) {
@@ -271,7 +271,7 @@ public class MaterialsController extends
         btnDelete.setTooltiptext(_("Delete"));
         btnDelete.addEventListener(Events.ON_CLICK, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 confirmRemove(materialCategory);
             }
         });
@@ -537,7 +537,7 @@ public class MaterialsController extends
      */
     public static class UnitTypeListRenderer implements ListitemRenderer {
         @Override
-        public void render(Listitem listItem, Object data) throws Exception {
+        public void render(Listitem listItem, Object data) {
             final UnitType unitType = (UnitType) data;
             listItem.setValue(unitType);
 
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/materials/UnitTypeController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/materials/UnitTypeController.java
index 1fedc2466..5ee531128 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/materials/UnitTypeController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/materials/UnitTypeController.java
@@ -95,14 +95,14 @@ public class UnitTypeController extends GenericForwardComposer {
 
         return new RowRenderer() {
             @Override
-            public void render(Row row, Object data) throws Exception {
+            public void render(Row row, Object data) {
                 final UnitType unitType = (UnitType) data;
 
                 appendUnitTypeName(row, unitType);
                 appendOperations(row, unitType);
                 row.addEventListener(Events.ON_CLICK, new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         goToEditFormInEditionMode(unitType);
                     }
                 });
@@ -118,7 +118,7 @@ public class UnitTypeController extends GenericForwardComposer {
                 hbox.appendChild(Util.createEditButton(new EventListener() {
 
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         goToEditFormInEditionMode(unitType);
                     }
                 }));
@@ -126,7 +126,7 @@ public class UnitTypeController extends GenericForwardComposer {
                 hbox.appendChild(Util.createRemoveButton(new EventListener() {
 
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         confirmRemove(unitType);
                     }
                 }));
@@ -184,8 +184,7 @@ public class UnitTypeController extends GenericForwardComposer {
         return new Constraint() {
 
             @Override
-            public void validate(Component comp, Object value)
-                    throws WrongValueException {
+            public void validate(Component comp, Object value) {
                 String strValue = (String) value;
                 if (StringUtils.isBlank(strValue)) {
                     throw new WrongValueException(comp,
@@ -207,8 +206,7 @@ public class UnitTypeController extends GenericForwardComposer {
         return new Constraint() {
 
             @Override
-            public void validate(Component comp, Object value)
-                    throws WrongValueException {
+            public void validate(Component comp, Object value) {
                 String strValue = (String) value;
                 if (StringUtils.isBlank(strValue)) {
                     throw new WrongValueException(comp,
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/montecarlo/MonteCarloController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/montecarlo/MonteCarloController.java
index 5c2d2b83f..1f9f34468 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/montecarlo/MonteCarloController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/montecarlo/MonteCarloController.java
@@ -104,7 +104,7 @@ public class MonteCarloController extends GenericForwardComposer {
         lbCriticalPaths.addEventListener(Events.ON_SELECT, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 reloadGridCritialPathTasks();
             }
 
@@ -113,7 +113,7 @@ public class MonteCarloController extends GenericForwardComposer {
         btnRunMonteCarlo.addEventListener(Events.ON_CLICK, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 validateRowsPercentages();
                 IBackGroundOperation<IDesktopUpdate> operation = new IBackGroundOperation<IDesktopUpdate>() {
 
@@ -306,7 +306,7 @@ public class MonteCarloController extends GenericForwardComposer {
     private static class CriticalPathTasksRender implements RowRenderer {
 
         @Override
-        public void render(Row row, Object data) throws Exception {
+        public void render(Row row, Object data) {
             row.setValue(data);
 
             MonteCarloTask task = (MonteCarloTask) data;
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/AssignedTaskQualityFormsToOrderElementController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/AssignedTaskQualityFormsToOrderElementController.java
index 5a5217626..98a4192d0 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/AssignedTaskQualityFormsToOrderElementController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/AssignedTaskQualityFormsToOrderElementController.java
@@ -269,7 +269,7 @@ public class AssignedTaskQualityFormsToOrderElementController extends
     public class TaskQualityFormsRowRenderer implements RowRenderer {
 
         @Override
-        public void render(Row row, Object data) throws Exception {
+        public void render(Row row, Object data) {
             TaskQualityForm taskQualityForm = (TaskQualityForm) data;
             row.setValue(taskQualityForm);
 
@@ -406,7 +406,7 @@ public class AssignedTaskQualityFormsToOrderElementController extends
 
         buttonRemove.addEventListener(Events.ON_CLICK, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 confirmRemove((TaskQualityForm) row.getValue());
             }
         });
@@ -419,7 +419,7 @@ public class AssignedTaskQualityFormsToOrderElementController extends
     public class TaskQualityFormItemsRowRenderer implements RowRenderer {
 
         @Override
-        public void render(Row row, Object data) throws Exception {
+        public void render(Row row, Object data) {
             TaskQualityFormItem item = (TaskQualityFormItem) data;
             row.setValue(item);
 
@@ -490,7 +490,7 @@ public class AssignedTaskQualityFormsToOrderElementController extends
         if (!taskQualityForm.isByItems()) {
             checkbox.addEventListener(Events.ON_CHECK, new EventListener() {
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     assignedTaskQualityFormsToOrderElementModel
                             .updatePassedTaskQualityFormItems(taskQualityForm);
                     Grid gridItems = row.getGrid();
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/DynamicDatebox.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/DynamicDatebox.java
index d0168e8b6..11824baff 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/DynamicDatebox.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/DynamicDatebox.java
@@ -149,7 +149,7 @@ public class DynamicDatebox extends GenericForwardComposer {
         component.addEventListener("onChange", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 updateBean();
                 updateComponents();
             }
@@ -160,7 +160,7 @@ public class DynamicDatebox extends GenericForwardComposer {
         textBox.addEventListener("onOK", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 userWantsDateBox(textBox);
             }
         });
@@ -170,7 +170,7 @@ public class DynamicDatebox extends GenericForwardComposer {
         currentDatebox.addEventListener("onOK", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 currentDatebox.setOpen(true);
             }
         });
@@ -180,7 +180,7 @@ public class DynamicDatebox extends GenericForwardComposer {
         currentDatebox.addEventListener("onBlur", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 dateBoxHasLostFocus(currentDatebox);
             }
         });
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/ManageOrderElementAdvancesController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/ManageOrderElementAdvancesController.java
index c54abe010..d3f9df98d 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/ManageOrderElementAdvancesController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/ManageOrderElementAdvancesController.java
@@ -356,7 +356,7 @@ public class ManageOrderElementAdvancesController extends
 
     public class AdvanceTypeListRenderer implements ListitemRenderer {
          @Override
-         public void render(Listitem listItem, Object data) throws Exception {
+        public void render(Listitem listItem, Object data) {
             final AdvanceAssignment advance = (AdvanceAssignment) data;
             listItem.setValue(advance);
             listItem.setDraggable("true");
@@ -414,7 +414,7 @@ public class ManageOrderElementAdvancesController extends
         comboAdvanceTypes.addEventListener(Events.ON_SELECT,
                 new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         setMaxValue(listItem, comboAdvanceTypes);
                         cleanFields(advance);
                         setPercentage();
@@ -495,7 +495,7 @@ public class ManageOrderElementAdvancesController extends
         maxValue.addEventListener(Events.ON_CHANGE,
                 new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 if (manageOrderElementAdvancesModel
                         .hasConsolidatedAdvances(advanceAssignment)) {
                     showMessagesConsolidation(1);
@@ -653,7 +653,7 @@ public class ManageOrderElementAdvancesController extends
         chartCheckbox.setChecked(selectedAdvances.contains(advance));
         chartCheckbox.addEventListener(Events.ON_CHECK, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 if (chartCheckbox.isChecked()) {
                     selectedAdvances.add(advance);
                 } else {
@@ -686,7 +686,7 @@ public class ManageOrderElementAdvancesController extends
         addMeasurementButton.addEventListener(Events.ON_CLICK,
                 new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         if (!listItem.equals(editAdvances.getSelectedItem())) {
                             selectAdvanceLine(listItem);
                         }
@@ -716,7 +716,7 @@ public class ManageOrderElementAdvancesController extends
 
         removeButton.addEventListener(Events.ON_CLICK, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 goToRemoveLineAdvanceAssignment(listItem);
             }
         });
@@ -1024,7 +1024,7 @@ public class ManageOrderElementAdvancesController extends
     private class AdvanceMeasurementRenderer implements ListitemRenderer {
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             AdvanceMeasurement advanceMeasurement = (AdvanceMeasurement) data;
 
             item.setValue(advanceMeasurement);
@@ -1048,7 +1048,7 @@ public class ManageOrderElementAdvancesController extends
             value.addEventListener(Events.ON_CHANGE, new EventListener() {
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     if (manageOrderElementAdvancesModel
                             .canRemoveOrChange(advanceMeasurement)) {
                         updatesValue(value);
@@ -1104,7 +1104,7 @@ public class ManageOrderElementAdvancesController extends
             date.addEventListener(Events.ON_CHANGE, new EventListener() {
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     if (manageOrderElementAdvancesModel
                             .canRemoveOrChange(advanceMeasurement)) {
                         validateMeasurementDate(date, date.getValue());
@@ -1180,7 +1180,7 @@ public class ManageOrderElementAdvancesController extends
 
             removeButton.addEventListener(Events.ON_CLICK, new EventListener() {
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     goToRemoveLineAdvanceMeasurement(listItem);
                 }
             });
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/OrderCRUDController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/OrderCRUDController.java
index 4cf290df3..00b5af9be 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/OrderCRUDController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/OrderCRUDController.java
@@ -332,7 +332,7 @@ public class OrderCRUDController extends GenericForwardComposer {
             schedulingMode.addEventListener(Events.ON_SELECT,
                     new EventListener() {
                         @Override
-                        public void onEvent(Event event) throws Exception {
+                        public void onEvent(Event event) {
                             SchedulingMode chosen = (SchedulingMode) schedulingMode
                                     .getSelectedItem().getValue();
                             if (chosen != null) {
@@ -372,7 +372,7 @@ public class OrderCRUDController extends GenericForwardComposer {
                 .getFellow("listOrderStatus");
         listOrderStatus.addEventListener(Events.ON_SELECT, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 updateDisabilitiesOnInterface();
             }
         });
@@ -416,7 +416,7 @@ public class OrderCRUDController extends GenericForwardComposer {
         tree.setModel(orderElementTreeController.getTreeModel());
         tree.addEventListener(Events.ON_SELECT, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 //undo the work done by this event
                 //to be able to control it from the ON_CLICK event
                 tree.clearSelection();
@@ -454,7 +454,7 @@ public class OrderCRUDController extends GenericForwardComposer {
 
     private AssignedHoursToOrderElementController assignedHoursController;
 
-    public void setupAssignedHoursToOrderElementController() throws Exception {
+    public void setupAssignedHoursToOrderElementController() {
         if (!confirmLastTab()) {
             return;
         }
@@ -473,7 +473,7 @@ public class OrderCRUDController extends GenericForwardComposer {
 
     private ManageOrderElementAdvancesController manageOrderElementAdvancesController;
 
-    public void setupManageOrderElementAdvancesController() throws Exception {
+    public void setupManageOrderElementAdvancesController() {
         if (!confirmLastTab()) {
             return;
         }
@@ -495,8 +495,7 @@ public class OrderCRUDController extends GenericForwardComposer {
 
     private AssignedLabelsToOrderElementController assignedLabelsController;
 
-    public void setupAssignedLabelsToOrderElementController()
-    throws Exception {
+    public void setupAssignedLabelsToOrderElementController() {
         if (!confirmLastTab()) {
             return;
         }
@@ -514,8 +513,7 @@ public class OrderCRUDController extends GenericForwardComposer {
 
     private AssignedCriterionRequirementToOrderElementController assignedCriterionRequirementController;
 
-    public void setupAssignedCriterionRequirementsToOrderElementController()
-            throws Exception {
+    public void setupAssignedCriterionRequirementsToOrderElementController() {
         if (!confirmLastTab()) {
             return;
         }
@@ -537,8 +535,7 @@ public class OrderCRUDController extends GenericForwardComposer {
 
     private AssignedMaterialsToOrderElementController assignedMaterialsController;
 
-    public void setupAssignedMaterialsToOrderElementController()
-            throws Exception {
+    public void setupAssignedMaterialsToOrderElementController() {
         if (!confirmLastTab()) {
             return;
         }
@@ -557,7 +554,7 @@ public class OrderCRUDController extends GenericForwardComposer {
 
     private AssignedTaskQualityFormsToOrderElementController assignedTaskQualityFormController;
 
-    public void setupAssignedTaskQualityFormsToOrderElementController() throws Exception {
+    public void setupAssignedTaskQualityFormsToOrderElementController() {
         if (!confirmLastTab()) {
             return;
         }
@@ -995,7 +992,7 @@ public class OrderCRUDController extends GenericForwardComposer {
         bdExternalCompanies.setListboxEventListener(
                 Events.ON_SELECT, new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         final Object object = bdExternalCompanies
                                 .getSelectedElement();
                         orderModel.setExternalCompany((ExternalCompany) object);
@@ -1004,7 +1001,7 @@ public class OrderCRUDController extends GenericForwardComposer {
         bdExternalCompanies.setListboxEventListener(Events.ON_OK,
                 new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         final Object object = bdExternalCompanies
                                 .getSelectedElement();
                         orderModel.setExternalCompany((ExternalCompany) object);
@@ -1128,7 +1125,7 @@ public class OrderCRUDController extends GenericForwardComposer {
     private class BaseCalendarsComboitemRenderer implements ComboitemRenderer {
 
         @Override
-        public void render(Comboitem item, Object data) throws Exception {
+        public void render(Comboitem item, Object data) {
             BaseCalendar calendar = (BaseCalendar) data;
             item.setLabel(calendar.getName());
             item.setValue(calendar);
@@ -1181,7 +1178,7 @@ public class OrderCRUDController extends GenericForwardComposer {
     public class OrdersRowRenderer implements RowRenderer {
 
         @Override
-        public void render(Row row, Object data) throws Exception {
+        public void render(Row row, Object data) {
 
             final Order order = (Order) data;
             row.setValue(order);
@@ -1199,7 +1196,7 @@ public class OrderCRUDController extends GenericForwardComposer {
             row.setTooltiptext(getTooltipText(order));
             row.addEventListener("onClick", new EventListener() {
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     goToEditForm(order);
                 }
             });
@@ -1252,7 +1249,7 @@ public class OrderCRUDController extends GenericForwardComposer {
         buttonEdit.setTooltiptext(_("Edit"));
         buttonEdit.addEventListener("onClick",new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 goToEditForm(order);
             }
         });
@@ -1268,7 +1265,7 @@ public class OrderCRUDController extends GenericForwardComposer {
             buttonDelete.setTooltiptext(_("Delete"));
             buttonDelete.addEventListener("onClick",new EventListener() {
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     confirmRemove(order);
                 }
             });
@@ -1284,7 +1281,7 @@ public class OrderCRUDController extends GenericForwardComposer {
         buttonPlan.setTooltiptext(_("See scheduling"));
         buttonPlan.addEventListener("onClick",new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 schedule(order);
             }
         });
@@ -1299,7 +1296,7 @@ public class OrderCRUDController extends GenericForwardComposer {
         buttonDerived.setTooltiptext(_("Create Template"));
         buttonDerived.addEventListener("onClick", new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 createTemplate(order);
             }
         });
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/OrderElementController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/OrderElementController.java
index 6c045ae52..1225aea7d 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/OrderElementController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/OrderElementController.java
@@ -92,7 +92,7 @@ public class OrderElementController extends GenericForwardComposer {
         setupDetailsOrderElementController();
     }
 
-    private void setupDetailsOrderElementController() throws Exception {
+    private void setupDetailsOrderElementController() {
         detailsController = (DetailsOrderElementController)
         orderElementDetails.getVariable("detailsController", true);
     }
@@ -102,7 +102,7 @@ public class OrderElementController extends GenericForwardComposer {
         Util.reloadBindings(comp);
     }
 
-    public void setupAssignedHoursToOrderElementController() throws Exception {
+    public void setupAssignedHoursToOrderElementController() {
         if (assignedHoursToOrderElementController == null) {
             assignedHoursToOrderElementController = (AssignedHoursToOrderElementController) orderElementHours
                     .getVariable("assignedHoursToOrderElementController", true);
@@ -122,7 +122,7 @@ public class OrderElementController extends GenericForwardComposer {
     }
 
     public void setupManageOrderElementAdvancesController()
-            throws Exception {
+            {
         if (manageOrderElementAdvancesController == null) {
             manageOrderElementAdvancesController = (ManageOrderElementAdvancesController) orderElementAdvances
                     .getVariable("manageOrderElementAdvancesController", true);
@@ -135,7 +135,7 @@ public class OrderElementController extends GenericForwardComposer {
         }
     }
 
-    public void setupAssignedLabelsToOrderElementController()throws Exception {
+    public void setupAssignedLabelsToOrderElementController(){
         if (assignedLabelsController == null) {
             assignedLabelsController = orderElementLabels.getController();
             assignedLabelsController.openWindow(orderElementModel);
@@ -145,7 +145,7 @@ public class OrderElementController extends GenericForwardComposer {
     }
 
     public void setupAssignedCriterionRequirementToOrderElementController()
-            throws Exception {
+            {
         if (assignedCriterionRequirementController == null) {
             assignedCriterionRequirementController = (AssignedCriterionRequirementToOrderElementController) orderElementCriterionRequirements
                     .getVariable("assignedCriterionRequirementController", true);
@@ -157,7 +157,7 @@ public class OrderElementController extends GenericForwardComposer {
     }
 
     public void setupAssignedMaterialsToOrderElementController()
-            throws Exception {
+            {
         if (assignedMaterialsController == null) {
             assignedMaterialsController = orderElementMaterials.getController();
             assignedMaterialsController.openWindow(getOrderElement());
@@ -167,7 +167,7 @@ public class OrderElementController extends GenericForwardComposer {
     }
 
     public void setupAssignedTaskQualityFormsToOrderElementController()
-            throws Exception {
+            {
         if (assignedTaskQualityFormsController == null) {
             assignedTaskQualityFormsController = (AssignedTaskQualityFormsToOrderElementController) orderElementTaskQualityForms
                 .getVariable("assignedTaskQualityFormsController", true);
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/OrderElementTreeController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/OrderElementTreeController.java
index bb51e17a2..a42e10d18 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/OrderElementTreeController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/OrderElementTreeController.java
@@ -282,7 +282,7 @@ public class OrderElementTreeController extends TreeController<OrderElement> {
         expandAllButton.setImage("/common/img/ico_expand.png");
         expandAllButton.addEventListener("onClick", new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 if (expandAllButton.getSclass().equals("planner-command")) {
                     expandAll();
                     expandAllButton.setSclass("planner-command clicked");
@@ -472,7 +472,7 @@ public class OrderElementTreeController extends TreeController<OrderElement> {
                     _("Edit"), "/common/img/ico_editar.png", "icono",
                     new EventListener() {
                         @Override
-                        public void onEvent(Event event) throws Exception {
+                        public void onEvent(Event event) {
                             showEditionOrderElement(item);
                         }
                     });
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/ProjectDetailsController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/ProjectDetailsController.java
index ad7f5e4f1..c697c7ccb 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/ProjectDetailsController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/ProjectDetailsController.java
@@ -238,7 +238,7 @@ public class ProjectDetailsController extends GenericForwardComposer {
         bdExternalCompanies.setListboxEventListener(Events.ON_SELECT,
                 new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         final Object object = bdExternalCompanies
                                 .getSelectedElement();
                         getOrder().setCustomer((ExternalCompany) object);
@@ -247,7 +247,7 @@ public class ProjectDetailsController extends GenericForwardComposer {
         bdExternalCompanies.setListboxEventListener(Events.ON_OK,
                 new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         final Object object = bdExternalCompanies
                                 .getSelectedElement();
                         getOrder().setCustomer((ExternalCompany) object);
@@ -256,7 +256,7 @@ public class ProjectDetailsController extends GenericForwardComposer {
                 });
         txtName.addEventListener(Events.ON_OK, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 accept();
             }
         });
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/assigntemplates/TemplateFinderPopup.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/assigntemplates/TemplateFinderPopup.java
index 375470b0e..90fb6c008 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/assigntemplates/TemplateFinderPopup.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/assigntemplates/TemplateFinderPopup.java
@@ -145,7 +145,7 @@ public class TemplateFinderPopup extends
         acceptButton.addEventListener(Events.ON_CLICK, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 onAccept();
             }
         });
@@ -154,7 +154,7 @@ public class TemplateFinderPopup extends
         cancelButton.addEventListener(Events.ON_CLICK, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 onCancel();
             }
         });
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/criterionrequirements/AssignedCriterionRequirementController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/criterionrequirements/AssignedCriterionRequirementController.java
index 2708323ca..a1b285ac5 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/criterionrequirements/AssignedCriterionRequirementController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/criterionrequirements/AssignedCriterionRequirementController.java
@@ -619,7 +619,7 @@ public abstract class AssignedCriterionRequirementController<T, M> extends
     public class HoursGroupListitemRender implements ListitemRenderer {
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             final HoursGroup hoursGroup = (HoursGroup) data;
 
             // Criterion Requirements hours Group
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/materials/AssignedMaterialsController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/materials/AssignedMaterialsController.java
index 5fc111763..30162c6fc 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/materials/AssignedMaterialsController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/orders/materials/AssignedMaterialsController.java
@@ -293,7 +293,7 @@ public abstract class AssignedMaterialsController<T, A> extends GenericForwardCo
          * Copied verbatim from org.zkoss.zul.Tree;
          */
         @Override
-        public void render(Treeitem ti, Object node) throws Exception {
+        public void render(Treeitem ti, Object node) {
             final MaterialCategory materialCategory = (MaterialCategory) node;
 
             Label lblName = new Label(materialCategory.getName());
@@ -313,7 +313,7 @@ public abstract class AssignedMaterialsController<T, A> extends GenericForwardCo
             cellName.addEventListener("onClick", new EventListener() {
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     getModel().searchMaterials("", materialCategory);
                     Util.reloadBindings(lbFoundMaterials);
                 }
@@ -333,7 +333,7 @@ public abstract class AssignedMaterialsController<T, A> extends GenericForwardCo
          * Copied verbatim from org.zkoss.zul.Tree;
          */
         @Override
-        public void render(Treeitem ti, Object node) throws Exception {
+        public void render(Treeitem ti, Object node) {
             final MaterialCategory materialCategory = (MaterialCategory) node;
 
             Label lblName = new Label(materialCategory.getName());
@@ -537,7 +537,7 @@ public abstract class AssignedMaterialsController<T, A> extends GenericForwardCo
      */
     public class UnitTypeListRenderer implements ListitemRenderer {
         @Override
-        public void render(Listitem listItem, Object data) throws Exception {
+        public void render(Listitem listItem, Object data) {
             final UnitType unitType = (UnitType) data;
             listItem.setValue(unitType);
 
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/AdvancedAllocationController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/AdvancedAllocationController.java
index d28a56b4f..839593422 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/AdvancedAllocationController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/AdvancedAllocationController.java
@@ -1001,7 +1001,7 @@ public class AdvancedAllocationController extends GenericForwardComposer {
         return new Callable<PairOfLists<Row, Row>>() {
 
             @Override
-            public PairOfLists<Row, Row> call() throws Exception {
+            public PairOfLists<Row, Row> call() {
                 List<Row> rows = getRows();
                 return new PairOfLists<Row, Row>(rows, rows);
             }
@@ -1183,7 +1183,7 @@ class Row {
                 new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         EffortDuration value = effortDurationBox
                                 .getEffortDurationValue();
 
@@ -1252,7 +1252,8 @@ class Row {
                 new EventListener() {
 
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event)
+                            throws InterruptedException {
                         final String currentValue = assignmentFunctionsCombo.getValue();
                         if (currentValue.equals(getPreviousValue())) {
                             return;
@@ -1467,7 +1468,7 @@ class Row {
         button.addEventListener(Events.ON_CLICK, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 IAssignmentFunctionConfiguration configuration = (IAssignmentFunctionConfiguration) assignmentFunctionsCombo
                         .getSelectedItem().getValue();
                 configuration.goToConfigure();
@@ -1558,7 +1559,7 @@ class Row {
         component.addEventListener(Events.ON_CHANGE, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 EffortDuration value = effortBox.getEffortDurationValue();
                 LocalDate startDate = restriction.limitStartDate(item
                         .getStartDate().toLocalDate());
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/AllocationConfiguration.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/AllocationConfiguration.java
index edc724cdb..4f7563e0c 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/AllocationConfiguration.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/AllocationConfiguration.java
@@ -74,7 +74,7 @@ public class AllocationConfiguration extends HtmlMacroComponent {
         calculationTypeSelector.addEventListener(Events.ON_CHECK, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 taskWorkableDays.clearErrorMessage(true);
                 setCalculationTypeSelected(calculationTypeSelector
                         .getSelectedItem().getValue());
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/FormBinder.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/FormBinder.java
index aeaacd31f..a871c05a1 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/FormBinder.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/FormBinder.java
@@ -99,7 +99,7 @@ public class FormBinder {
     private EventListener onChangeEnableApply = new EventListener() {
 
         @Override
-        public void onEvent(Event event) throws Exception {
+        public void onEvent(Event event) {
             Component target = event.getTarget();
             if (target instanceof InputElement) {
                 InputElement inputElement = (InputElement) target;
@@ -137,7 +137,7 @@ public class FormBinder {
     private EventListener hoursRowInputChange = new EventListener() {
 
         @Override
-        public void onEvent(Event event) throws Exception {
+        public void onEvent(Event event) {
             if (effortInput.isDisabled()) {
                 effortInput.setValue(sumAllEffortFromInputs(rows));
             }
@@ -147,7 +147,7 @@ public class FormBinder {
     private EventListener resourcesPerDayRowInputChange = new EventListener() {
 
         @Override
-        public void onEvent(Event event) throws Exception {
+        public void onEvent(Event event) {
             if (allResourcesPerDay.isDisabled()) {
                 sumResourcesPerDayFromRowsAndAssignToAllResourcesPerDay();
             }
@@ -157,7 +157,7 @@ public class FormBinder {
     private EventListener allHoursInputChange = new EventListener() {
 
         @Override
-        public void onEvent(Event event) throws Exception {
+        public void onEvent(Event event) {
             if (!effortInput.isDisabled()) {
                 distributeHoursFromTotalToRows();
             }
@@ -167,7 +167,7 @@ public class FormBinder {
     private EventListener allResourcesPerDayChange = new EventListener() {
 
         @Override
-        public void onEvent(Event event) throws Exception {
+        public void onEvent(Event event) {
             if (!allResourcesPerDay.isDisabled()) {
                 distributeResourcesPerDayToRows();
             }
@@ -295,7 +295,7 @@ public class FormBinder {
                     new EventListener() {
 
                         @Override
-                        public void onEvent(Event event) throws Exception {
+                        public void onEvent(Event event) {
                             Task task = getTask();
                             Integer workableDays = taskWorkableDays.getValue();
                             if (allocationRowsHandler.isForwardsAllocation()) {
@@ -550,7 +550,7 @@ public class FormBinder {
         applyButtonListener = new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 doApply();
                 FormBinder.this.applyButton.setDisabled(true);
             }
@@ -575,7 +575,7 @@ public class FormBinder {
         deleteButton.addEventListener(Events.ON_CLICK, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 applyButton.setDisabled(false);
             }
         });
@@ -661,7 +661,7 @@ public class FormBinder {
         Util.ensureUniqueListener(recommendedAllocation, Events.ON_CLICK,
                 new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         activatingRecommendedAllocation();
                     }
                 });
@@ -670,7 +670,7 @@ public class FormBinder {
     public EventListener getRecommendedAllocationListener() {
         return new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 activatingRecommendedAllocation();
             }
         };
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/ResourceAllocationController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/ResourceAllocationController.java
index a9ddd1191..67ee0e35e 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/ResourceAllocationController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/ResourceAllocationController.java
@@ -616,7 +616,7 @@ public class ResourceAllocationController extends GenericForwardComposer {
     private class ResourceAllocationRenderer implements RowRenderer {
 
         @Override
-        public void render(Row item, Object data) throws Exception {
+        public void render(Row item, Object data) {
             if (data instanceof AllocationRow) {
                 AllocationRow row = (AllocationRow) data;
                 renderResourceAllocation(item, row);
@@ -626,7 +626,7 @@ public class ResourceAllocationController extends GenericForwardComposer {
         }
 
         private void renderResourceAllocation(Row row, final AllocationRow data)
-                throws Exception {
+                {
             row.setValue(data);
             append(row, data.createDetail());
             append(row, new Label(data.getName()));
@@ -653,7 +653,7 @@ public class ResourceAllocationController extends GenericForwardComposer {
             deleteButton.addEventListener("onClick", new EventListener() {
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     removeAllocation(data);
                 }
             });
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/streches/StretchesFunctionController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/streches/StretchesFunctionController.java
index d77c23dc6..8235b2f42 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/streches/StretchesFunctionController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/allocation/streches/StretchesFunctionController.java
@@ -270,7 +270,7 @@ public class StretchesFunctionController extends GenericForwardComposer {
         private final BigDecimal ONE_HUNDRED = BigDecimal.valueOf(100);
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             Stretch stretch = (Stretch) data;
 
             item.setValue(stretch);
@@ -409,7 +409,7 @@ public class StretchesFunctionController extends GenericForwardComposer {
 
                 button.addEventListener(Events.ON_CLICK, new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         stretchesFunctionModel.removeStretch(stretch);
                         reloadStretchesListAndCharts();
                     }
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/company/CompanyPlanningController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/company/CompanyPlanningController.java
index 0b9d3d169..f6c404777 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/company/CompanyPlanningController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/company/CompanyPlanningController.java
@@ -159,7 +159,7 @@ public class CompanyPlanningController implements Composer {
         cbProgressTypes.addEventListener(Events.ON_SELECT, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 planner.updateCompletion(getSelectedProgressType().toString());
             }
 
@@ -175,7 +175,7 @@ public class CompanyPlanningController implements Composer {
     private static class ProgressTypeRenderer implements ComboitemRenderer {
 
         @Override
-        public void render(Comboitem item, Object data) throws Exception {
+        public void render(Comboitem item, Object data) {
             ProgressType progressType = (ProgressType) data;
             item.setValue(progressType);
             item.setLabel(_(progressType.getValue()));
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/company/CompanyPlanningModel.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/company/CompanyPlanningModel.java
index fbd2ed861..066eca1b0 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/company/CompanyPlanningModel.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/company/CompanyPlanningModel.java
@@ -303,7 +303,7 @@ public abstract class CompanyPlanningModel implements ICompanyPlanningModel {
             ((South) planner.getFellow("graphics")).addEventListener("onOpen",
                 new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         transactionService
                         .runOnReadOnlyTransaction(new IOnTransaction<Void>() {
                             @Override
@@ -378,7 +378,7 @@ public abstract class CompanyPlanningModel implements ICompanyPlanningModel {
         datebox.addEventListener(Events.ON_CHANGE, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 LocalDate date = new LocalDate(datebox.getValue());
                 org.zkoss.zk.ui.Component child = vbox
                         .getFellow("indicatorsTable");
@@ -559,7 +559,7 @@ public abstract class CompanyPlanningModel implements ICompanyPlanningModel {
             checkbox.addEventListener(Events.ON_CHECK, new EventListener() {
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     transactionService
                             .runOnReadOnlyTransaction(new IOnTransaction<Void>() {
                                 @Override
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/limiting/allocation/LimitingResourceAllocationController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/limiting/allocation/LimitingResourceAllocationController.java
index eada75048..48295b7df 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/limiting/allocation/LimitingResourceAllocationController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/limiting/allocation/LimitingResourceAllocationController.java
@@ -181,7 +181,7 @@ public class LimitingResourceAllocationController extends GenericForwardComposer
     public class GridLimitingAllocationRenderer implements RowRenderer {
 
         @Override
-        public void render(Row row, Object data) throws Exception {
+        public void render(Row row, Object data) {
             LimitingAllocationRow resourceAllocation = (LimitingAllocationRow) data;
 
             row.appendChild(label(resourceAllocation.getAllocationTypeStr()));
@@ -248,7 +248,7 @@ public class LimitingResourceAllocationController extends GenericForwardComposer
             listbox.addEventListener("onSelect", new EventListener() {
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     String priority = getSelectedValue((Listbox) event.getTarget());
                     resourceAllocation.setPriorityStr(priority);
                 }
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/order/OrderPlanningController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/order/OrderPlanningController.java
index eaaaea914..d80319036 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/order/OrderPlanningController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/order/OrderPlanningController.java
@@ -157,7 +157,7 @@ public class OrderPlanningController implements Composer {
     }
 
     @Override
-    public void doAfterCompose(org.zkoss.zk.ui.Component comp) throws Exception {
+    public void doAfterCompose(org.zkoss.zk.ui.Component comp) {
         this.planner = (Planner) comp;
         String zoomLevelParameter = null;
         if ((parameters != null) && (parameters.get("zoom") != null)
@@ -245,7 +245,7 @@ public class OrderPlanningController implements Composer {
         LongOperationFeedback.execute(orderElementFilter, new ILongOperation() {
 
             @Override
-            public void doAction() throws Exception {
+            public void doAction() {
                 model.forceLoadLabelsAndCriterionRequirements();
 
                 final IContext<?> context = planner.getContext();
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/order/OrderPlanningModel.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/order/OrderPlanningModel.java
index 5f5f8ce7e..667bed773 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/order/OrderPlanningModel.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/order/OrderPlanningModel.java
@@ -788,7 +788,7 @@ public abstract class OrderPlanningModel implements IOrderPlanningModel {
         datebox.addEventListener(Events.ON_CHANGE, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 LocalDate date = new LocalDate(datebox.getValue());
                 org.zkoss.zk.ui.Component child = vbox
                         .getFellow("indicatorsTable");
@@ -897,7 +897,7 @@ public abstract class OrderPlanningModel implements IOrderPlanningModel {
             checkbox.addEventListener(Events.ON_CHECK, new EventListener() {
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     transactionService
                             .runOnReadOnlyTransaction(new IOnTransaction<Void>() {
                                 @Override
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/reassign/ReassignCommand.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/reassign/ReassignCommand.java
index f764d2ff6..1d60fd2fb 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/reassign/ReassignCommand.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/reassign/ReassignCommand.java
@@ -133,7 +133,7 @@ public class ReassignCommand implements IReassignCommand {
                                         new Callable<String>() {
 
                                     @Override
-                                    public String call() throws Exception {
+                                    public String call() {
                                         return _("{0} reassignations finished",
                                                 reassignations.size());
                                     }
@@ -144,7 +144,7 @@ public class ReassignCommand implements IReassignCommand {
                                         new Callable<String>() {
 
                                     @Override
-                                    public String call() throws Exception {
+                                    public String call() {
                                         return _("It couldn't complete all the reassignations");
                                     }
                                 })));
@@ -248,7 +248,7 @@ public class ReassignCommand implements IReassignCommand {
                 relativeTo.addEventListener(eventName, new EventListener() {
 
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         relativeTo.removeEventListener(eventName, this);
                         try {
                             Messagebox.show(resolve(message),
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/reassign/ReassignController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/reassign/ReassignController.java
index c6843f3c7..9e10a150e 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/reassign/ReassignController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/reassign/ReassignController.java
@@ -118,7 +118,7 @@ public class ReassignController extends GenericForwardComposer {
                 new EventListener() {
 
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         Radio selectedItem = reassigningTypeSelector
                                 .getSelectedItem();
                         newTypeChoosen(Type.fromRadio(selectedItem));
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/tabs/MultipleTabsPlannerController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/tabs/MultipleTabsPlannerController.java
index d8fb613ed..bb2e8fd9c 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/tabs/MultipleTabsPlannerController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/tabs/MultipleTabsPlannerController.java
@@ -107,7 +107,7 @@ public class MultipleTabsPlannerController implements Composer,
                     }
 
                     @Override
-                    public void doAction() throws Exception {
+                    public void doAction() {
                         proxiedTab.show();
                     }
                 });
@@ -313,7 +313,7 @@ public class MultipleTabsPlannerController implements Composer,
             private EventListener showPlanningTab() {
                 return new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         getTabsRegistry().show(planningTab);
                     }
                 };
@@ -367,7 +367,7 @@ public class MultipleTabsPlannerController implements Composer,
 
     @Override
     @Transactional(readOnly=true)
-    public void doAfterCompose(org.zkoss.zk.ui.Component comp) throws Exception {
+    public void doAfterCompose(org.zkoss.zk.ui.Component comp) {
         Planner.registerNeededScripts();
         tabsSwitcher = (TabSwitcher) comp;
         breadcrumbs = comp.getPage().getFellow("breadcrumbs");
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/taskedition/EditTaskController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/taskedition/EditTaskController.java
index e8239350b..a4043e600 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/taskedition/EditTaskController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/taskedition/EditTaskController.java
@@ -33,7 +33,6 @@ import org.navalplanner.business.planner.entities.Task;
 import org.navalplanner.business.planner.entities.TaskElement;
 import org.navalplanner.business.workingday.EffortDuration;
 import org.navalplanner.business.workingday.IntraDayDate;
-import org.navalplanner.web.common.EffortDurationBox;
 import org.navalplanner.web.common.IMessagesForUser;
 import org.navalplanner.web.common.Level;
 import org.navalplanner.web.common.MessagesForUser;
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/taskedition/TaskPropertiesController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/taskedition/TaskPropertiesController.java
index 232a613ef..c0cd247a8 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/taskedition/TaskPropertiesController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/taskedition/TaskPropertiesController.java
@@ -293,7 +293,7 @@ public class TaskPropertiesController extends GenericForwardComposer {
                 new EventListener() {
 
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         PositionConstraintType constraint = (PositionConstraintType) startConstraintTypes
                                 .getSelectedItemApi().getValue();
                         constraintTypeChoosen(constraint);
@@ -303,7 +303,7 @@ public class TaskPropertiesController extends GenericForwardComposer {
         lbResourceAllocationType.addEventListener(Events.ON_SELECT, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 SelectEvent se = (SelectEvent) event;
 
                 final ResourceAllocationTypeEnum oldState = getOldState();
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/reports/HoursWorkedPerWorkerController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/reports/HoursWorkedPerWorkerController.java
index 6032516fa..83cde0931 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/reports/HoursWorkedPerWorkerController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/reports/HoursWorkedPerWorkerController.java
@@ -173,7 +173,7 @@ public class HoursWorkedPerWorkerController extends NavalplannerReportController
     public class ResourceListRenderer implements ListitemRenderer {
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             final Resource resource = (Resource) data;
             item.setValue(resource);
 
@@ -233,7 +233,7 @@ public class HoursWorkedPerWorkerController extends NavalplannerReportController
         delete.setTooltiptext(_("Delete"));
         delete.addEventListener(Events.ON_CLICK, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 onRemoveResource((Resource) item.getValue());
             }
         });
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/reports/TimeLineRequiredMaterialController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/reports/TimeLineRequiredMaterialController.java
index d48a07513..31e53e7e8 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/reports/TimeLineRequiredMaterialController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/reports/TimeLineRequiredMaterialController.java
@@ -258,7 +258,7 @@ public class TimeLineRequiredMaterialController extends
          * Copied verbatim from org.zkoss.zul.Tree;
          */
         @Override
-        public void render(Treeitem ti, Object node) throws Exception {
+        public void render(Treeitem ti, Object node) {
             Label lblName = null;
             if (node instanceof MaterialCategory) {
                 final MaterialCategory materialCategory = (MaterialCategory) node;
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/resourceload/ResourceLoadController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/resourceload/ResourceLoadController.java
index f7871ccef..e0041f947 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/resourceload/ResourceLoadController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/resourceload/ResourceLoadController.java
@@ -151,7 +151,7 @@ public class ResourceLoadController implements Composer {
     }
 
     @Override
-    public void doAfterCompose(org.zkoss.zk.ui.Component comp) throws Exception {
+    public void doAfterCompose(org.zkoss.zk.ui.Component comp) {
         this.parent = comp;
     }
 
@@ -328,7 +328,7 @@ public class ResourceLoadController implements Composer {
         button.setTooltip(_("Filter by worker"));
         button.addEventListener(Events.ON_CLICK, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 if(currentFilterByResources) {
                     filterResourcesFromBandbox();
                 }
@@ -354,7 +354,7 @@ public class ResourceLoadController implements Composer {
         initDate.setWidth("75px");
         initDate.addEventListener(Events.ON_CHANGE, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 resourceLoadModel.setInitDateFilter(LocalDate
                         .fromDateFields(initDate.getValue()));
                 reload(currentFilterByResources);
@@ -365,7 +365,7 @@ public class ResourceLoadController implements Composer {
         endDate.setWidth("75px");
         endDate.addEventListener(Events.ON_CHANGE, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 resourceLoadModel.setEndDateFilter(LocalDate
                         .fromDateFields(endDate.getValue()));
                 reload(currentFilterByResources);
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/criterion/CriterionTreeController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/criterion/CriterionTreeController.java
index d0e81bc41..4d0b2dbb4 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/criterion/CriterionTreeController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/criterion/CriterionTreeController.java
@@ -107,7 +107,7 @@ public class CriterionTreeController extends GenericForwardComposer {
         }
 
         @Override
-        public void render(Treeitem item, Object data) throws Exception {
+        public void render(Treeitem item, Object data) {
             final CriterionDTO criterionForThisRow = (CriterionDTO) data;
             item.setValue(data);
 
@@ -156,7 +156,7 @@ public class CriterionTreeController extends GenericForwardComposer {
 
             checkboxActive.addEventListener(Events.ON_CHECK,new EventListener() {
                 @Override
-                public void onEvent(Event event) throws Exception {
+                        public void onEvent(Event event) {
                     getModel().updateEnabledCriterions(criterionForThisRow.isActive(),criterionForThisRow);
                     reloadTree();
                 }
@@ -210,7 +210,7 @@ public class CriterionTreeController extends GenericForwardComposer {
             upbutton.setSclass("icono");
             upbutton.addEventListener(Events.ON_CLICK, new EventListener() {
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     getModel().down(criterionForThisRow);
                     reloadTree();
                 }
@@ -222,7 +222,7 @@ public class CriterionTreeController extends GenericForwardComposer {
             downbutton.setSclass("icono");
             downbutton.addEventListener(Events.ON_CLICK, new EventListener() {
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     getModel().up(criterionForThisRow);
                     reloadTree();
                 }
@@ -233,7 +233,7 @@ public class CriterionTreeController extends GenericForwardComposer {
             if(getModel().getCriterionType().allowHierarchy()){
                     indentbutton.addEventListener(Events.ON_CLICK, new EventListener() {
                 @Override
-                public void onEvent(Event event) throws Exception {
+                            public void onEvent(Event event) {
                     getModel().indent(criterionForThisRow);
                     reloadTree();
                 }
@@ -246,7 +246,7 @@ public class CriterionTreeController extends GenericForwardComposer {
                 unindentbutton.addEventListener(Events.ON_CLICK,
                     new EventListener() {
                         @Override
-                        public void onEvent(Event event) throws Exception {
+                            public void onEvent(Event event) {
                             getModel().unindent(criterionForThisRow);
                             reloadTree();
                         }
@@ -258,7 +258,7 @@ public class CriterionTreeController extends GenericForwardComposer {
             if (criterionsModel.isDeletable(criterionForThisRow.getCriterion())) {
             removebutton.addEventListener(Events.ON_CLICK, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+                            public void onEvent(Event event) {
                 getModel().removeNode(criterionForThisRow);
                                 if (!criterionForThisRow.isNewObject()) {
                                     criterionsModel
@@ -275,7 +275,7 @@ public class CriterionTreeController extends GenericForwardComposer {
 
                 @Override
                 public void onEvent(org.zkoss.zk.ui.event.Event arg0)
-                        throws Exception {
+ {
                     DropEvent dropEvent = (DropEvent) arg0;
                     move((Component) dropEvent.getTarget(),
                             (Component) dropEvent.getDragged());
@@ -407,7 +407,7 @@ public class CriterionTreeController extends GenericForwardComposer {
         Util.reloadBindings(tree);
     }
 
-    private String getName() throws ValidationException{
+    private String getName() {
         String name = criterionName.getValue();
         getModel().thereIsOtherWithSameNameAndType(name);
         getModel().validateNameNotEmpty(name);
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/machine/MachineCRUDController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/machine/MachineCRUDController.java
index 5515c969b..6fcb7c499 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/machine/MachineCRUDController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/machine/MachineCRUDController.java
@@ -178,14 +178,14 @@ public class MachineCRUDController extends GenericForwardComposer {
         criterionsController.doAfterCompose(comp);
     }
 
-    private void setupConfigurationController() throws Exception {
+    private void setupConfigurationController() {
         configurationUnits = editWindow.getFellow("configurationUnits");
         configurationController = (MachineConfigurationController) configurationUnits
                 .getVariable("configurationController", true);
     }
 
     private void setupResourcesCostCategoryAssignmentController(Component comp)
-    throws Exception {
+ {
         Component costCategoryAssignmentContainer =
             editWindow.getFellowIfAny("costCategoryAssignmentContainer");
         resourcesCostCategoryAssignmentController = (ResourcesCostCategoryAssignmentController)
@@ -459,7 +459,7 @@ public class MachineCRUDController extends GenericForwardComposer {
     private class BaseCalendarsComboitemRenderer implements ComboitemRenderer {
 
         @Override
-        public void render(Comboitem item, Object data) throws Exception {
+        public void render(Comboitem item, Object data) {
             BaseCalendar calendar = (BaseCalendar) data;
             item.setLabel(calendar.getName());
             item.setValue(calendar);
@@ -649,14 +649,14 @@ public class MachineCRUDController extends GenericForwardComposer {
         return new RowRenderer() {
 
             @Override
-            public void render(Row row, Object data) throws Exception {
+            public void render(Row row, Object data) {
                 final Machine machine = (Machine) data;
                 row.setValue(machine);
 
                 row.addEventListener(Events.ON_CLICK,
                         new EventListener() {
                             @Override
-                            public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                                 goToEditForm(machine);
                             }
                         });
@@ -670,13 +670,13 @@ public class MachineCRUDController extends GenericForwardComposer {
                 Hbox hbox = new Hbox();
                 hbox.appendChild(Util.createEditButton(new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         goToEditForm(machine);
                     }
                 }));
                 hbox.appendChild(Util.createRemoveButton(new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         confirmRemove(machine);
                     }
                 }));
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/search/NewAllocationSelectorController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/search/NewAllocationSelectorController.java
index 6b72966c3..78facdffa 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/search/NewAllocationSelectorController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/search/NewAllocationSelectorController.java
@@ -112,7 +112,7 @@ public class NewAllocationSelectorController extends
                 // Whenever an element of the tree is selected, a search query
                 // is executed, refreshing the results into the workers listbox
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     searchResources("", getSelectedCriterions());
                     showSelectedAllocations();
                 }
@@ -127,7 +127,7 @@ public class NewAllocationSelectorController extends
                 new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 if (isGenericType()) {
                     returnToSpecificDueToResourceSelection();
                 }
@@ -144,7 +144,7 @@ public class NewAllocationSelectorController extends
                 new EventListener() {
 
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         Radio radio = (Radio) event.getTarget();
                         if (radio == null) {
                             return;
@@ -474,7 +474,7 @@ public class NewAllocationSelectorController extends
     private static class ResourceListRenderer implements ListitemRenderer {
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             item.setValue((Resource) data);
 
             appendLabelResource(item);
@@ -517,7 +517,7 @@ public class NewAllocationSelectorController extends
          * Copied verbatim from org.zkoss.zul.Tree;
          */
         @Override
-        public void render(Treeitem ti, Object node) throws Exception {
+        public void render(Treeitem ti, Object node) {
             Treecell tc = new Treecell(Objects.toString(node));
             Treerow tr = null;
             ti.setValue(node);
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/worker/LocalizationsController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/worker/LocalizationsController.java
index 07bb6ed28..4e1032755 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/worker/LocalizationsController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/worker/LocalizationsController.java
@@ -92,7 +92,7 @@ public class LocalizationsController extends GenericForwardComposer {
         unassignButton.addEventListener("onClick", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 workerModel.unassignSatisfactions(
                         extractValuesOf(activeSatisfactions.getSelectedItems(),
                                 CriterionSatisfaction.class));
@@ -103,7 +103,7 @@ public class LocalizationsController extends GenericForwardComposer {
         assignButton.addEventListener("onClick", new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 Set<Listitem> selectedItems = criterionsNotAssigned
                         .getSelectedItems();
                 workerModel.assignCriteria(
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/worker/WorkerCRUDController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/worker/WorkerCRUDController.java
index eaf19db6d..4041152cd 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/worker/WorkerCRUDController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/resources/worker/WorkerCRUDController.java
@@ -47,8 +47,8 @@ import org.navalplanner.web.common.OnlyOneVisible;
 import org.navalplanner.web.common.Util;
 import org.navalplanner.web.common.components.bandboxsearch.BandboxMultipleSearch;
 import org.navalplanner.web.common.components.finders.FilterPair;
-import org.navalplanner.web.common.entrypoints.IURLHandlerRegistry;
 import org.navalplanner.web.common.entrypoints.EntryPointsHandler;
+import org.navalplanner.web.common.entrypoints.IURLHandlerRegistry;
 import org.navalplanner.web.costcategories.ResourcesCostCategoryAssignmentController;
 import org.navalplanner.web.resources.search.ResourcePredicate;
 import org.zkoss.zk.ui.Component;
@@ -365,15 +365,14 @@ public class WorkerCRUDController extends GenericForwardComposer implements
         clearFilterDates();
     }
 
-    private void setupResourcesCostCategoryAssignmentController(Component comp)
-    throws Exception {
+    private void setupResourcesCostCategoryAssignmentController(Component comp) {
         Component costCategoryAssignmentContainer =
             editWindow.getFellowIfAny("costCategoryAssignmentContainer");
         resourcesCostCategoryAssignmentController = (ResourcesCostCategoryAssignmentController)
             costCategoryAssignmentContainer.getVariable("assignmentController", true);
     }
 
-    private void editAsignedCriterions(){
+    private void editAsignedCriterions() {
         try{
             setupCriterionsController();
             criterionsController.prepareForEdit( workerModel.getWorker());
@@ -391,7 +390,7 @@ public class WorkerCRUDController extends GenericForwardComposer implements
         }
     }
 
-    private void setupCriterionsController()throws Exception {
+    private void setupCriterionsController() throws Exception {
         criterionsController = new CriterionsController(workerModel);
         criterionsController.doAfterCompose(getCurrentWindow().
                 getFellow("criterionsContainer"));
@@ -543,7 +542,7 @@ public class WorkerCRUDController extends GenericForwardComposer implements
     private class BaseCalendarsComboitemRenderer implements ComboitemRenderer {
 
         @Override
-        public void render(Comboitem item, Object data) throws Exception {
+        public void render(Comboitem item, Object data) {
             BaseCalendar calendar = (BaseCalendar) data;
             item.setLabel(calendar.getName());
             item.setValue(calendar);
@@ -842,14 +841,14 @@ public class WorkerCRUDController extends GenericForwardComposer implements
         return new RowRenderer() {
 
             @Override
-            public void render(Row row, Object data) throws Exception {
+            public void render(Row row, Object data) {
                 final Worker worker = (Worker) data;
                 row.setValue(worker);
 
                 row.addEventListener(Events.ON_CLICK,
                         new EventListener() {
                             @Override
-                            public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                                 goToEditForm(worker);
                             }
                         });
@@ -864,13 +863,13 @@ public class WorkerCRUDController extends GenericForwardComposer implements
                 Hbox hbox = new Hbox();
                 hbox.appendChild(Util.createEditButton(new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         goToEditForm(worker);
                     }
                 }));
                 hbox.appendChild(Util.createRemoveButton(new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         confirmRemove(worker);
                     }
                 }));
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/scenarios/ScenarioCRUDController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/scenarios/ScenarioCRUDController.java
index 222f489a8..fde5fdcc9 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/scenarios/ScenarioCRUDController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/scenarios/ScenarioCRUDController.java
@@ -156,7 +156,7 @@ public class ScenarioCRUDController extends GenericForwardComposer {
     public class ScenariosTreeitemRenderer implements TreeitemRenderer {
 
         @Override
-        public void render(final Treeitem item, Object data) throws Exception {
+        public void render(final Treeitem item, Object data) {
             SimpleTreeNode simpleTreeNode = (SimpleTreeNode) data;
             final Scenario scenario = (Scenario) simpleTreeNode.getData();
             item.setValue(data);
@@ -184,7 +184,7 @@ public class ScenarioCRUDController extends GenericForwardComposer {
                     new EventListener() {
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     goToCreateDerivedForm(scenario);
                 }
 
@@ -194,7 +194,7 @@ public class ScenarioCRUDController extends GenericForwardComposer {
             Button editButton = Util.createEditButton(new EventListener() {
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     goToEditForm(scenario);
                 }
 
@@ -204,7 +204,7 @@ public class ScenarioCRUDController extends GenericForwardComposer {
             Button removeButton = Util.createRemoveButton(new EventListener() {
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     scenarioModel.remove(scenario);
                     Util.reloadBindings(listWindow);
                 }
@@ -226,7 +226,7 @@ public class ScenarioCRUDController extends GenericForwardComposer {
                     new EventListener() {
 
                         @Override
-                        public void onEvent(Event event) throws Exception {
+                        public void onEvent(Event event) {
                             connectTo(scenario);
                         }
 
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/scenarios/TransferOrdersController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/scenarios/TransferOrdersController.java
index c6bf65b63..eba6c663c 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/scenarios/TransferOrdersController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/scenarios/TransferOrdersController.java
@@ -77,7 +77,7 @@ public class TransferOrdersController extends GenericForwardComposer {
         sourceScenarioBandboxSearch.setListboxEventListener(Events.ON_CLICK,
                 new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         setSourceScenario();
                     }
                 });
@@ -85,7 +85,7 @@ public class TransferOrdersController extends GenericForwardComposer {
         sourceScenarioBandboxSearch.setListboxEventListener(Events.ON_OK,
                 new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         setSourceScenario();
                     }
                 });
@@ -93,7 +93,7 @@ public class TransferOrdersController extends GenericForwardComposer {
         destinationScenarioBandboxSearch.setListboxEventListener(
                 Events.ON_CLICK, new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         setDestinationScenario();
                     }
                 });
@@ -101,7 +101,7 @@ public class TransferOrdersController extends GenericForwardComposer {
         destinationScenarioBandboxSearch.setListboxEventListener(Events.ON_OK,
                 new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         setDestinationScenario();
                     }
                 });
@@ -160,7 +160,7 @@ public class TransferOrdersController extends GenericForwardComposer {
         }
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             Order order = (Order) data;
             item.setValue(data);
 
@@ -184,7 +184,7 @@ public class TransferOrdersController extends GenericForwardComposer {
             transferButton.addEventListener(Events.ON_CLICK,
                     new EventListener() {
                         @Override
-                        public void onEvent(Event event) throws Exception {
+                        public void onEvent(Event event) {
                             try {
                                 transferOrdersModel.transfer(order);
                                 Util.reloadBindings(destinationScenarioOrders);
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/subcontract/ReportAdvancesController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/subcontract/ReportAdvancesController.java
index e61496e11..d61b0614f 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/subcontract/ReportAdvancesController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/subcontract/ReportAdvancesController.java
@@ -96,7 +96,7 @@ public class ReportAdvancesController extends GenericForwardComposer {
     private class ReportAdvancesOrderRenderer implements RowRenderer {
 
         @Override
-        public void render(Row row, Object data) throws Exception {
+        public void render(Row row, Object data) {
             Order order = (Order) data;
             row.setValue(order);
 
@@ -179,7 +179,7 @@ public class ReportAdvancesController extends GenericForwardComposer {
                 };
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     String uri = CallbackServlet.registerAndCreateURLFor(
                             (HttpServletRequest) Executions.getCurrent()
                                     .getNativeRequest(), requestHandler, false,
@@ -199,7 +199,7 @@ public class ReportAdvancesController extends GenericForwardComposer {
             sendButton.addEventListener(Events.ON_CLICK, new EventListener() {
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     try {
                         reportAdvancesModel.sendAdvanceMeasurements(order);
                         messagesForUser.showMessage(Level.INFO,
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/subcontract/SubcontractedTasksController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/subcontract/SubcontractedTasksController.java
index d9ded22ed..67806dedd 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/subcontract/SubcontractedTasksController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/subcontract/SubcontractedTasksController.java
@@ -96,7 +96,7 @@ public class SubcontractedTasksController extends GenericForwardComposer {
     private class SubcontractedTasksRenderer implements RowRenderer {
 
         @Override
-        public void render(Row row, Object data) throws Exception {
+        public void render(Row row, Object data) {
             SubcontractedTaskData subcontractedTaskData = (SubcontractedTaskData) data;
             row.setValue(subcontractedTaskData);
 
@@ -176,7 +176,7 @@ public class SubcontractedTasksController extends GenericForwardComposer {
                 };
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     String uri = CallbackServlet.registerAndCreateURLFor(
                             (HttpServletRequest) Executions.getCurrent()
                                     .getNativeRequest(), requestHandler, false,
@@ -196,7 +196,7 @@ public class SubcontractedTasksController extends GenericForwardComposer {
             sendButton.addEventListener(Events.ON_CLICK, new EventListener() {
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     try {
                         subcontractedTasksModel
                                 .sendToSubcontractor(subcontractedTaskData);
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/templates/OrderTemplatesController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/templates/OrderTemplatesController.java
index 7b9319ca0..34ddde2cd 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/templates/OrderTemplatesController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/templates/OrderTemplatesController.java
@@ -319,7 +319,7 @@ public class OrderTemplatesController extends GenericForwardComposer implements
     private void controlSelectionWithOnClick(final Tree tree) {
         tree.addEventListener(Events.ON_SELECT, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 //undo the work done by this event
                 //to be able to control it from the ON_CLICK event
                 tree.clearSelection();
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/templates/TemplatesTreeController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/templates/TemplatesTreeController.java
index 5adf8e8fc..0bad28781 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/templates/TemplatesTreeController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/templates/TemplatesTreeController.java
@@ -77,7 +77,7 @@ public class TemplatesTreeController extends
                     _("Edit"), "/common/img/ico_editar.png", "icono",
                     new EventListener() {
                         @Override
-                        public void onEvent(Event event) throws Exception {
+                        public void onEvent(Event event) {
                             Treeitem item = getTreeitem(event.getTarget());
                             operationsForOrderTemplate.showEditElement(item);
                         }
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/templates/advances/AdvancesAssignmentComponent.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/templates/advances/AdvancesAssignmentComponent.java
index 11c0f9b43..3508d593e 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/templates/advances/AdvancesAssignmentComponent.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/templates/advances/AdvancesAssignmentComponent.java
@@ -47,7 +47,7 @@ public class AdvancesAssignmentComponent extends HtmlMacroComponent {
     private ListitemRenderer advancesRenderer = new ListitemRenderer() {
 
         @Override
-        public void render(Listitem item, Object data) throws Exception {
+        public void render(Listitem item, Object data) {
             AdvanceAssignmentTemplate assignment = (AdvanceAssignmentTemplate) data;
             append(item, createTypeLabel(assignment));
             append(item, createMaxValueLabel(assignment));
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/tree/TreeController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/tree/TreeController.java
index 7294b54c2..6d8582062 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/tree/TreeController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/tree/TreeController.java
@@ -362,7 +362,7 @@ public abstract class TreeController<T extends ITreeNode<T>> extends
                     private Treerow treerow = getCurrentTreeRow();
 
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         Navigation navigation = Navigation
                                 .getIntentFrom((KeyEvent) event);
                         moveFocusTo(inputElement, navigation, treerow);
@@ -565,7 +565,7 @@ public abstract class TreeController<T extends ITreeNode<T>> extends
                 private Treeitem item = (Treeitem) getCurrentTreeRow().getParent();
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     item.setSelected(true);
                     Util.reloadBindings(item.getParent());
                 }
@@ -611,7 +611,7 @@ public abstract class TreeController<T extends ITreeNode<T>> extends
         }
 
         @Override
-        public void render(final Treeitem item, Object data) throws Exception {
+        public void render(final Treeitem item, Object data) {
             item.setValue(data);
             applySnapshot(item);
             currentTreeRow = getTreeRowWithoutChildrenFor(item);
@@ -677,8 +677,7 @@ public abstract class TreeController<T extends ITreeNode<T>> extends
         private void onDropMoveFromDraggedToTarget() {
             currentTreeRow.addEventListener("onDrop", new EventListener() {
                 @Override
-                public void onEvent(org.zkoss.zk.ui.event.Event event)
-                        throws Exception {
+                public void onEvent(org.zkoss.zk.ui.event.Event event) {
                     DropEvent dropEvent = (DropEvent) event;
                     move((Component) dropEvent.getTarget(),
                             (Component) dropEvent.getDragged());
@@ -696,7 +695,7 @@ public abstract class TreeController<T extends ITreeNode<T>> extends
                     schedulingStateToggler);
             cell.addEventListener("onDoubleClick", new EventListener() {
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
 
                     markModifiedTreeitem((Treerow) cell.getParent());
                     onDoubleClickForSchedulingStateCell(currentElement);
@@ -707,7 +706,7 @@ public abstract class TreeController<T extends ITreeNode<T>> extends
                 private Treeitem item = (Treeitem) getCurrentTreeRow().getParent();
 
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     item.getTree().toggleItemSelection(item);
                 }
             });
@@ -852,7 +851,7 @@ public abstract class TreeController<T extends ITreeNode<T>> extends
                 final T currentElement) {
             EventListener downButtonListener = new EventListener() {
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     down(currentElement);
                 }
             };
@@ -873,7 +872,7 @@ public abstract class TreeController<T extends ITreeNode<T>> extends
         protected Button createUpButton(final Treeitem item, final T element) {
             EventListener upButtonListener = new EventListener() {
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     up(element);
                 }
             };
@@ -895,7 +894,7 @@ public abstract class TreeController<T extends ITreeNode<T>> extends
                 final T element) {
             EventListener unindentListener = new EventListener() {
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     unindent(element);
                 }
             };
@@ -916,7 +915,7 @@ public abstract class TreeController<T extends ITreeNode<T>> extends
         protected Button createIndentButton(final Treeitem item, final T element) {
             EventListener indentListener = new EventListener() {
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     indent(element);
                 }
             };
@@ -937,7 +936,7 @@ public abstract class TreeController<T extends ITreeNode<T>> extends
         protected Button createRemoveButton(final T currentElement) {
             EventListener removeListener = new EventListener() {
                 @Override
-                public void onEvent(Event event) throws Exception {
+                public void onEvent(Event event) {
                     remove(currentElement);
                     filterByPredicateIfAny();
                 }
@@ -969,7 +968,7 @@ public abstract class TreeController<T extends ITreeNode<T>> extends
         }
 
         @Override
-        public void doCatch(Throwable ex) throws Throwable {
+        public void doCatch(Throwable ex) {
 
         }
 
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/users/OrderAuthorizationController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/users/OrderAuthorizationController.java
index 08b8ae393..7571f2bd8 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/users/OrderAuthorizationController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/users/OrderAuthorizationController.java
@@ -143,7 +143,7 @@ public class OrderAuthorizationController extends GenericForwardComposer{
         return new RowRenderer() {
 
             @Override
-            public void render(Row row, Object data) throws Exception {
+            public void render(Row row, Object data) {
                 final ProfileOrderAuthorization profileOrderAuthorization = (ProfileOrderAuthorization) data;
 
                 row.appendChild(new Label(profileOrderAuthorization.getProfile().getProfileName()));
@@ -152,7 +152,7 @@ public class OrderAuthorizationController extends GenericForwardComposer{
                 row.appendChild(Util.createRemoveButton(new EventListener() {
 
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         removeOrderAuthorization(profileOrderAuthorization);
                     }
                 }));
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/workreports/WorkReportCRUDController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/workreports/WorkReportCRUDController.java
index 27b28eb01..af6e89d30 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/workreports/WorkReportCRUDController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/workreports/WorkReportCRUDController.java
@@ -53,8 +53,8 @@ import org.navalplanner.web.common.components.Autocomplete;
 import org.navalplanner.web.common.components.NewDataSortableColumn;
 import org.navalplanner.web.common.components.NewDataSortableGrid;
 import org.navalplanner.web.common.components.bandboxsearch.BandboxSearch;
-import org.navalplanner.web.common.entrypoints.IURLHandlerRegistry;
 import org.navalplanner.web.common.entrypoints.EntryPointsHandler;
+import org.navalplanner.web.common.entrypoints.IURLHandlerRegistry;
 import org.zkoss.ganttz.IPredicate;
 import org.zkoss.ganttz.util.ComponentsFinder;
 import org.zkoss.zk.ui.Component;
@@ -641,7 +641,7 @@ public class WorkReportCRUDController extends GenericForwardComposer implements
         bandboxSelectOrderElementInHead.setListboxEventListener(Events.ON_SELECT,
                 new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 Listitem selectedItem = (Listitem) ((SelectEvent) event)
                         .getSelectedItems().iterator().next();
                 OrderElement orderElement = (OrderElement) selectedItem
@@ -653,7 +653,7 @@ public class WorkReportCRUDController extends GenericForwardComposer implements
         bandboxSelectOrderElementInHead.setListboxEventListener(Events.ON_OK,
                 new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         Listitem selectedItem = bandboxSelectOrderElementInHead
                                 .getSelectedItem();
                         if ((selectedItem != null) && (getWorkReport() != null)) {
@@ -745,7 +745,7 @@ public class WorkReportCRUDController extends GenericForwardComposer implements
 
                 columnDate.addEventListener("onSort", new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         sortWorkReportLines();
                     }
                 });
@@ -895,7 +895,7 @@ public class WorkReportCRUDController extends GenericForwardComposer implements
 
         autocomplete.addEventListener("onChange", new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 changeResourceInLines(autocomplete, row);
             }
         });
@@ -936,7 +936,7 @@ public class WorkReportCRUDController extends GenericForwardComposer implements
         bandboxSearch.setListboxEventListener(Events.ON_SELECT,
                 new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         Listitem selectedItem = bandboxSearch.getSelectedItem();
                         setOrderElementInWRL(selectedItem, workReportLine);
                     }
@@ -945,7 +945,7 @@ public class WorkReportCRUDController extends GenericForwardComposer implements
         bandboxSearch.setListboxEventListener(Events.ON_OK,
                 new EventListener() {
                     @Override
-                    public void onEvent(Event event) throws Exception {
+                    public void onEvent(Event event) {
                         Listitem selectedItem = bandboxSearch.getSelectedItem();
                         setOrderElementInWRL(selectedItem, workReportLine);
                         bandboxSearch.close();
@@ -982,7 +982,7 @@ public class WorkReportCRUDController extends GenericForwardComposer implements
 
         comboLabels.addEventListener(Events.ON_CHANGE, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 if (comboLabels.getSelectedItem() != null) {
                     Label newLabel = (Label) comboLabels.getSelectedItem()
                             .getValue();
@@ -1022,7 +1022,7 @@ public class WorkReportCRUDController extends GenericForwardComposer implements
 
         timeStart.addEventListener(Events.ON_CHANGING, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 // force the binding
                 Timebox timeFinish = (Timebox) getTimeboxFinish(row);
                 if (timeFinish != null) {
@@ -1035,7 +1035,7 @@ public class WorkReportCRUDController extends GenericForwardComposer implements
 
         timeStart.addEventListener(Events.ON_CHANGE, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 Timebox timeFinish = (Timebox) getTimeboxFinish(row);
                 if (timeFinish != null) {
                     checkCannotBeHigher(timeStart, timeFinish);
@@ -1084,7 +1084,7 @@ public class WorkReportCRUDController extends GenericForwardComposer implements
 
         timeFinish.addEventListener(Events.ON_CHANGING, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 Timebox timeStart = (Timebox) getTimeboxStart(row);
                 if (timeStart != null) {
                     timeStart.setFocus(true);
@@ -1096,7 +1096,7 @@ public class WorkReportCRUDController extends GenericForwardComposer implements
 
         timeFinish.addEventListener(Events.ON_CHANGE, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 Timebox timeStart = (Timebox) getTimeboxStart(row);
                 if (timeStart != null) {
                     checkCannotBeHigher(timeStart, timeFinish);
@@ -1176,7 +1176,7 @@ public class WorkReportCRUDController extends GenericForwardComposer implements
         lbHoursType.addEventListener(Events.ON_SELECT, new EventListener() {
 
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 Listitem item = lbHoursType.getSelectedItem();
                 if (item != null) {
                     setHoursType((WorkReportLine) row.getValue(), item);
@@ -1210,7 +1210,7 @@ public class WorkReportCRUDController extends GenericForwardComposer implements
 
         code.addEventListener("onChange", new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 final WorkReportLine line = (WorkReportLine) row.getValue();
                 line.setCode(code.getValue());
             }
@@ -1230,7 +1230,7 @@ public class WorkReportCRUDController extends GenericForwardComposer implements
         delete.setTooltiptext(_("Delete"));
         delete.addEventListener(Events.ON_CLICK, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 confirmRemove((WorkReportLine) row.getValue());
             }
         });
@@ -1296,7 +1296,7 @@ public class WorkReportCRUDController extends GenericForwardComposer implements
     public class WorkReportListRenderer implements RowRenderer {
 
         @Override
-        public void render(Row row, Object data) throws Exception {
+        public void render(Row row, Object data) {
             WorkReportLine workReportLine = (WorkReportLine) data;
 
             row.setValue(workReportLine);
@@ -1337,7 +1337,7 @@ public class WorkReportCRUDController extends GenericForwardComposer implements
     public class OrderedFieldsAndLabelsRowRenderer implements RowRenderer {
 
         @Override
-        public void render(Row row, Object data) throws Exception {
+        public void render(Row row, Object data) {
             row.setValue(data);
 
             if (data instanceof DescriptionValue) {
@@ -1394,7 +1394,7 @@ public class WorkReportCRUDController extends GenericForwardComposer implements
 
         comboLabels.addEventListener(Events.ON_CHANGE, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 if(comboLabels.getSelectedItem() != null){
                     Label newLabel = (Label) comboLabels.getSelectedItem()
                             .getValue();
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/workreports/WorkReportTypeCRUDController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/workreports/WorkReportTypeCRUDController.java
index b2ce1a120..fb48cc6a8 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/workreports/WorkReportTypeCRUDController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/workreports/WorkReportTypeCRUDController.java
@@ -44,8 +44,8 @@ import org.navalplanner.web.common.OnlyOneVisible;
 import org.navalplanner.web.common.Util;
 import org.navalplanner.web.common.components.Autocomplete;
 import org.navalplanner.web.common.components.NewDataSortableGrid;
-import org.navalplanner.web.common.entrypoints.IURLHandlerRegistry;
 import org.navalplanner.web.common.entrypoints.EntryPointsHandler;
+import org.navalplanner.web.common.entrypoints.IURLHandlerRegistry;
 import org.zkoss.zk.ui.Component;
 import org.zkoss.zk.ui.WrongValueException;
 import org.zkoss.zk.ui.event.CheckEvent;
@@ -292,7 +292,7 @@ public class WorkReportTypeCRUDController extends GenericForwardComposer
     public class DescriptionFieldRowRenderer implements RowRenderer {
 
         @Override
-        public void render(Row row, Object data) throws Exception {
+        public void render(Row row, Object data) {
 
             final DescriptionField descriptionField = (DescriptionField) data;
             row.setValue(descriptionField);
@@ -391,7 +391,7 @@ public class WorkReportTypeCRUDController extends GenericForwardComposer
 
         listPosition.addEventListener(Events.ON_SELECT, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 changePositionDescriptionField(listPosition
                             .getSelectedItem(), descriptionField);
                 Util.reloadBindings(listDescriptionFields);
@@ -407,7 +407,7 @@ public class WorkReportTypeCRUDController extends GenericForwardComposer
 
         removeButton.addEventListener(Events.ON_CLICK, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 removeDescriptionField(descriptionField);
             }
         });
@@ -475,7 +475,7 @@ public class WorkReportTypeCRUDController extends GenericForwardComposer
     public class WorkReportLabelTypeAssigmentRowRenderer implements RowRenderer {
 
         @Override
-        public void render(Row row, Object data) throws Exception {
+        public void render(Row row, Object data) {
 
             final WorkReportLabelTypeAssigment workReportLabelTypeAssigment = (WorkReportLabelTypeAssigment) data;
             row.setValue(workReportLabelTypeAssigment);
@@ -523,7 +523,7 @@ public class WorkReportTypeCRUDController extends GenericForwardComposer
 
         comboLabelTypes.addEventListener(Events.ON_CHANGE, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 changeLabelType(comboLabelTypes.getSelectedItem(),
                         workReportLabelTypeAssigment);
                 validateIfExistTheSameLabelType(comboLabelTypes,
@@ -551,7 +551,7 @@ public class WorkReportTypeCRUDController extends GenericForwardComposer
 
         comboLabels.addEventListener(Events.ON_CHANGE, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 changeLabel(comboLabels.getSelectedItem(),
                         workReportLabelTypeAssigment);
                 Util.reloadBindings(listWorkReportLabelTypeAssigments);
@@ -574,7 +574,7 @@ public class WorkReportTypeCRUDController extends GenericForwardComposer
 
         listPosition.addEventListener(Events.ON_SELECT, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 changePositionLabel(listPosition.getSelectedItem(),
                             workReportLabelTypeAssigment);
                 Util.reloadBindings(listWorkReportLabelTypeAssigments);
@@ -591,7 +591,7 @@ public class WorkReportTypeCRUDController extends GenericForwardComposer
 
         removeButton.addEventListener(Events.ON_CLICK, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 removeWorkReportLabelTypeAssigment(workReportLabelTypeAssigment);
             }
         });
@@ -909,7 +909,7 @@ public class WorkReportTypeCRUDController extends GenericForwardComposer
     public class OrderedFieldsAndLabelsRowRenderer implements RowRenderer {
 
         @Override
-        public void render(Row row, Object data) throws Exception {
+        public void render(Row row, Object data) {
             row.setValue(data);
 
             String name = _("Unallocated name");
@@ -956,7 +956,7 @@ public class WorkReportTypeCRUDController extends GenericForwardComposer
         downbutton.setSclass("icono");
         downbutton.addEventListener(Events.ON_CLICK, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 boolean intoHeading = intoHeading(row.getGrid());
                 workReportTypeModel.upFieldOrLabel(row.getValue(), intoHeading);
                 Util.reloadBindings(row.getGrid());
@@ -969,7 +969,7 @@ public class WorkReportTypeCRUDController extends GenericForwardComposer
         upbutton.setSclass("icono");
         upbutton.addEventListener(Events.ON_CLICK, new EventListener() {
             @Override
-            public void onEvent(Event event) throws Exception {
+            public void onEvent(Event event) {
                 boolean intoHeading = intoHeading(row.getGrid());
                 workReportTypeModel.downFieldOrLabel(row.getValue(),
                         intoHeading);
diff --git a/navalplanner-webapp/src/test/java/org/navalplanner/web/orders/OrderModelTest.java b/navalplanner-webapp/src/test/java/org/navalplanner/web/orders/OrderModelTest.java
index 635796e30..30f92e709 100644
--- a/navalplanner-webapp/src/test/java/org/navalplanner/web/orders/OrderModelTest.java
+++ b/navalplanner-webapp/src/test/java/org/navalplanner/web/orders/OrderModelTest.java
@@ -245,7 +245,7 @@ public class OrderModelTest {
     @Ignore("Test ignored until having the possibility to have a user " +
             "session from tests")
     @Test
-    public void testListing() throws Exception {
+    public void testListing() {
         List<Order> list = orderModel.getOrders();
         Order order = createValidOrder();
         order.setCustomer(createValidExternalCompany());
@@ -255,7 +255,7 @@ public class OrderModelTest {
     }
 
     @Test
-    public void testRemove() throws Exception {
+    public void testRemove() {
         Order order = createValidOrder();
         orderModel.setOrder(order);
         orderModel.save();
@@ -274,7 +274,7 @@ public class OrderModelTest {
     }
 
     @Test
-    public void testFind() throws Exception {
+    public void testFind() throws InstanceNotFoundException {
         Order order = createValidOrder();
         orderModel.setOrder(order);
         orderModel.save();
@@ -375,7 +375,7 @@ public class OrderModelTest {
 
     @Test
     @NotTransactional
-    public void testAddingOrderElement() throws Exception {
+    public void testAddingOrderElement() {
         final Order order = adHocTransaction
                 .runOnReadOnlyTransaction(new IOnTransaction<Order>() {
                     @Override
@@ -430,7 +430,7 @@ public class OrderModelTest {
 
     @Test
     @NotTransactional
-    public void testManyToManyHoursGroupCriterionMapping() throws Exception {
+    public void testManyToManyHoursGroupCriterionMapping() {
         givenCriterion();
         final Order order = adHocTransaction
                 .runOnReadOnlyTransaction(new IOnTransaction<Order>() {
@@ -521,7 +521,7 @@ public class OrderModelTest {
     }
 
     @Test(expected = ValidationException.class)
-    public void testAtLeastOneHoursGroup() throws Exception {
+    public void testAtLeastOneHoursGroup() {
         Order order = createValidOrder();
 
         OrderLine orderLine = OrderLine.create();
diff --git a/navalplanner-webapp/src/test/java/org/navalplanner/web/resources/CriterionModelTest.java b/navalplanner-webapp/src/test/java/org/navalplanner/web/resources/CriterionModelTest.java
index 6fd070fdc..b1d7ec499 100644
--- a/navalplanner-webapp/src/test/java/org/navalplanner/web/resources/CriterionModelTest.java
+++ b/navalplanner-webapp/src/test/java/org/navalplanner/web/resources/CriterionModelTest.java
@@ -111,7 +111,7 @@ public class CriterionModelTest {
 
     @Test
     public void savingCriterionIncreasesTheNumberOfCriterions()
-            throws Exception {
+            {
         givenValidCriterionFor(PredefinedCriterionTypes.WORK_RELATIONSHIP);
         int initial = getCriterionsNumber(PredefinedCriterionTypes.WORK_RELATIONSHIP);
         criterionDAO.save(criterion);
@@ -145,7 +145,7 @@ public class CriterionModelTest {
 
     /*@Test
     @NotTransactional
-    public void modificationsAreSaved() throws Exception {
+    public void modificationsAreSaved() {
         adHocTransactionService.runOnTransaction(new IOnTransaction<Void>() {
 
             @Override
@@ -174,7 +174,7 @@ public class CriterionModelTest {
     }*/
 
     @Test
-    public void modifyingDontAlterTheNumberOfCriterions() throws Exception {
+    public void modifyingDontAlterTheNumberOfCriterions() {
         givenCreatedCriterionFor(PredefinedCriterionTypes.WORK_RELATIONSHIP);
         int initial = getCriterionsNumber(PredefinedCriterionTypes.WORK_RELATIONSHIP);
         String newName = UUID.randomUUID().toString() + "random";