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[Springframework-rcp-dev] [Spring-JIRA] Commented: (RCP-482) VLDocking throws a NullPointerException, on closing a duplicate window
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From: Tobias V. (JIRA) <no...@at...> - 2007-07-20 14:42:58
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[ http://opensource.atlassian.com/projects/spring/browse/RCP-482?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_24916 ]
Tobias Vogel commented on RCP-482:
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I discovered it now the same on minimizing a window, but this still is not reproducible by certain steps. Seems liek a timing issue to me. Probably a component is destructed/replace too early or too late. If I find time this weekend I'll see, if I can dig into the source code a little and maybe track it down.
> VLDocking throws a NullPointerException, on closing a duplicate window
> ----------------------------------------------------------------------
>
> Key: RCP-482
> URL: http://opensource.atlassian.com/projects/spring/browse/RCP-482
> Project: Spring Framework Rich Client Project
> Issue Type: Bug
> Components: Application Framework
> Environment: Windows XP SP2, Java 1.5, Spring-RCP 0.3.0-SNAPSHOT current SVN Head (Revision 1785)
> Reporter: Tobias Vogel
>
> I integrated VLDocking into my application. So far it works pretty well, besides one thing:
> - I open the application with one (or multiple) views (described in the context by VLDockingViewDescriptor") open
> - I choose the "NewWindowCommand" from the window menu (already integrated in a vanilla rcp project)
> - I then again try to close the window again which leads to the NullPointerException
> The relevant line in the DockViewTitleBar (see stacktrace below) looks like this:
> > tb.target.getDockKey().setNotification(false);
> Seems like the dock keys don't get duplicated while duplicating the windows, as the original window doesn't show this behaviour.
> Here's the stacktrace:
> [ERROR,MessagesDialogExceptionHandler,AWT-EventQueue-0] Uncaught throwable handled
> java.lang.NullPointerException
> at com.vlsolutions.swing.docking.DockViewTitleBar$FocusHighlighter.propertyChange(DockViewTitleBar.java:743)
> at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:339)
> at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:347)
> at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:276)
> at java.awt.KeyboardFocusManager.firePropertyChange(KeyboardFocusManager.java:1387)
> at java.awt.KeyboardFocusManager.setGlobalFocusOwner(KeyboardFocusManager.java:525)
> at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:469)
> at java.awt.Component.dispatchEventImpl(Component.java:4282)
> at java.awt.Container.dispatchEventImpl(Container.java:2116)
> at java.awt.Component.dispatchEvent(Component.java:4240)
> at java.awt.KeyboardFocusManager.processCurrentLightweightRequests(KeyboardFocusManager.java:2590)
> at java.awt.KeyboardFocusManager.retargetFocusEvent(KeyboardFocusManager.java:2837)
> at java.awt.Component.dispatchEventImpl(Component.java:4275)
> at java.awt.Container.dispatchEventImpl(Container.java:2116)
> at java.awt.Window.dispatchEventImpl(Window.java:2429)
> at java.awt.Component.dispatchEvent(Component.java:4240)
> at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
> at java.awt.SequencedEvent.dispatch(SequencedEvent.java:98)
> at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
> at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
> at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
> at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:177)
> at java.awt.Dialog$1.run(Dialog.java:1039)
> at java.awt.Dialog$3.run(Dialog.java:1091)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.awt.Dialog.show(Dialog.java:1089)
> at javax.swing.JOptionPane.showOptionDialog(JOptionPane.java:853)
> at org.springframework.richclient.exceptionhandling.AbstractDialogExceptionHandler.notifyUserAboutException(AbstractDialogExceptionHandler.java:77)
> at org.springframework.richclient.exceptionhandling.AbstractLoggingExceptionHandler.uncaughtException(AbstractLoggingExceptionHandler.java:48)
> at org.springframework.richclient.exceptionhandling.delegation.AbstractExceptionHandlerDelegate.uncaughtExceptionPurged(AbstractExceptionHandlerDelegate.java:70)
> at org.springframework.richclient.exceptionhandling.delegation.AbstractExceptionHandlerDelegate.uncaughtException(AbstractExceptionHandlerDelegate.java:66)
> at org.springframework.richclient.exceptionhandling.delegation.DelegatingExceptionHandler.uncaughtException(DelegatingExceptionHandler.java:66)
> at org.springframework.richclient.exceptionhandling.AwtExceptionHandlerAdapterHack.handle(AwtExceptionHandlerAdapterHack.java:48)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at java.awt.EventDispatchThread.handleException(EventDispatchThread.java:389)
> at java.awt.EventDispatchThread.processException(EventDispatchThread.java:295)
> at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:287)
> at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
> at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
> at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
> at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
> at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)
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