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Build: NetBeans IDE 6.0 RC1 (Build 200711131200) VM: Java HotSpot(TM) Client VM, 1.5.0_06-b05 OS: Windows XP, 5.1, x86 User Comments: I have migrated my Desktop Application which is previously developed using Netbeans 3.0 and JDK 1.4., now i am using in Netbeans 6.0 RC1 and JDK 1.5 as tool. This application is developed using SWING framework. I have already configure library path. Its compiled without any errors. But when i am trying to run it it will gives me this type of error. So if you anybody has solution please help me to solved out this problem. Even Though my application is working.
Created attachment 58054 [details] stacktrace
this is the actual exception ... Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException at javax.swing.ArrayTable.remove(ArrayTable.java:188) at javax.swing.ActionMap.remove(ActionMap.java:117) at javax.swing.ToolTipManager.unregisterComponent(ToolTipManager.java:388) at javax.swing.JComponent.setToolTipText(JComponent.java:2877) at net.infonode.docking.internalutil.InternalDockingUtil.updateButtons(InternalDockingUtil.java:162) at net.infonode.docking.WindowTab.updateTabButtons(WindowTab.java:179) at net.infonode.docking.DockingWindow.updateButtonVisibility(DockingWindow.java:1372) at net.infonode.docking.View.updateButtonVisibility(View.java:541) at net.infonode.docking.DockingWindow.updateButtonVisibility(DockingWindow.java:1375) at net.infonode.docking.TabWindow.doUpdateButtonVisibility(TabWindow.java:172) at net.infonode.docking.TabWindow.updateButtonVisibility(TabWindow.java:157) at net.infonode.docking.AbstractTabWindow$6.run(AbstractTabWindow.java:146) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEvent(EventQueue.java:461) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149) at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
> this is the actual exception ... > Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException > at javax.swing.ArrayTable.remove(ArrayTable.java:188) > at javax.swing.ActionMap.remove(ActionMap.java:117) > at javax.swing.ToolTipManager.unregisterComponent(ToolTipManager.java:388) > at javax.swing.JComponent.setToolTipText(JComponent.java:2877) > at net.infonode.docking.internalutil.InternalDockingUtil.updateButtons(InternalDockingUtil.java:162) > ... I am sorry, but I don't see how is this issue related to NetBeans. The stack trace shows that the exception comes from your code. > NullPointerException at org.netbeans.modules.swingapp.ProjectCustomizerProvider$SaveListener.storeValue > ... I am not able to reproduce this exception. Are you still able to reproduce it? If so, could you, please, provide exact steps to reproduce? Thank you in advance.
> This same application source code is work fine in Netbeans 3.6 (JDK 1.4) and and gives me error > in Netbeans 6.x(JDK 1.5). Even I am not sure why this happen. > > So I have tried to change Platform in Netbeans 6.x to jdk 1.4 for this application but still same error. > So I am confuse and bit wonder how this possible. I am sorry, I still don't understand how is this issue related to NetBeans GUI builder. The attached exception is thrown by your own code and I have no idea what your code does and why it may fail. If you still believe that there is some bug in NetBeans GUI builder, please, specify more details. It would be ideal to provide steps to reproduce. Thank you in advance.
Closing as non-reproducible.
I have NetBeans 6.1, and the error still going
I believe that this issue was fixed together with issue 134831.