From e0aaa3533dec02b3a2e3b2f8078a573d951a39b8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=93scar=20Gonz=C3=A1lez=20Fern=C3=A1ndez?=
 <ogonzalez@igalia.com>
Date: Tue, 18 Aug 2009 12:26:56 +0200
Subject: [PATCH] ItEr22S12CUVistaRecursosTempoPorProxectoItEr21S07: Adding
 null checks.

---
 .../java/org/zkoss/ganttz/adapters/PlannerConfiguration.java  | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/adapters/PlannerConfiguration.java b/ganttzk/src/main/java/org/zkoss/ganttz/adapters/PlannerConfiguration.java
index 225d5ade5..df6c9d258 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/adapters/PlannerConfiguration.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/adapters/PlannerConfiguration.java
@@ -4,6 +4,7 @@ import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 
+import org.apache.commons.lang.Validate;
 import org.zkoss.ganttz.extensions.ICommand;
 import org.zkoss.ganttz.extensions.ICommandOnTask;
 import org.zkoss.ganttz.extensions.IContext;
@@ -77,10 +78,12 @@ public class PlannerConfiguration<T> {
     }
 
     public void addCommandOnTask(ICommandOnTask<T> commandOnTask) {
+        Validate.notNull(commandOnTask);
         this.commandsOnTasks.add(commandOnTask);
     }
 
     public void addGlobalCommand(ICommand<T> command) {
+        Validate.notNull(command);
         this.globalCommands.add(command);
     }
 
@@ -98,6 +101,7 @@ public class PlannerConfiguration<T> {
 
     public void setGoingDownInLastArrowCommand(
             ICommand<T> goingDownInLastArrowCommand) {
+        Validate.notNull(goingDownInLastArrowCommand);
         this.goingDownInLastArrowCommand = goingDownInLastArrowCommand;
     }