diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/servlets/CallbackServlet.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/servlets/CallbackServlet.java
index fd757f8aa..5325bd159 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/servlets/CallbackServlet.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/servlets/CallbackServlet.java
@@ -36,6 +36,8 @@ import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
 import org.apache.commons.lang.Validate;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
 
 /**
  * Servlet that allows to register custom responses. It must be declared at
@@ -46,6 +48,8 @@ public class CallbackServlet extends HttpServlet {
 
     private static final String MAPPING = "/callback/";
 
+    private static final Log LOG = LogFactory.getLog(CallbackServlet.class);
+
     private static final long CLEANING_PERIOD_MILLIS = 1000 * 60 * 10; // ten
     // minutes
 
@@ -139,12 +143,23 @@ public class CallbackServlet extends HttpServlet {
         synchronized (CallbackServlet.class) {
             if (contextPath == null) {
                 contextPath = config.getServletContext().getContextPath();
-                cleaningTimer.schedule(cleaningTask(), CLEANING_PERIOD_MILLIS,
-                        CLEANING_PERIOD_MILLIS);
+                scheduleTimer();
             }
         }
     }
 
+    private void scheduleTimer() {
+        try {
+            cleaningTimer.schedule(cleaningTask(), CLEANING_PERIOD_MILLIS,
+                    CLEANING_PERIOD_MILLIS);
+        } catch (Throwable e) {
+            LOG
+                    .error(
+                            "can't start cleaning timer. A memory leak will be caused!",
+                            e);
+        }
+    }
+
     private TimerTask cleaningTask() {
         return new TimerTask() {
             @Override