[ BUILD # : 200509251800 ]
[ JDK VERSION : 1.5.0_04 ]

To produce this error:

1. Edit a file. Do not manually save the file.
2. Go to the tab of the file just edited and click the x to close the file.

The IDE pauses and then the InterruptedException appears.  After you close the Exception dialog, a Question dialog will appear and asking you if you want to save changes.  Click "Save" or "Disgard" or "Cancel", it does not matter. The file can not be closed without closing the IDE.

[org.openide.text.CloneableEditorSupport] *********** Exception occurred ************ at 1:42 PM on Sep 27, 2005
java.lang.InterruptedException: Waiting 10s for AWT and nothing! Exiting to prevent deadlock
	at org.openide.text.CloneableEditorSupport$1SafeAWTAccess.waitForResult(CloneableEditorSupport.java:1028)
[catch] at org.openide.text.CloneableEditorSupport.canClose(CloneableEditorSupport.java:1041)
	at org.openide.text.DataEditorSupport.canClose(DataEditorSupport.java:274)
	at org.openide.text.CloneableEditor.closeLast(CloneableEditor.java:328)
	at org.openide.windows.CloneableTopComponent$Ref.unregister(CloneableTopComponent.java:330)
	at org.openide.windows.CloneableTopComponent$Ref.access$300(CloneableTopComponent.java:222)
	at org.openide.windows.CloneableTopComponent.canClose(CloneableTopComponent.java:174)
	at org.openide.text.CloneableEditor.canClose(CloneableEditor.java:136)
	at org.netbeans.core.windows.Central.removeModeTopComponent(Central.java:725)
	at org.netbeans.core.windows.Central.userClosedTopComponent(Central.java:1535)
	at org.netbeans.core.windows.view.DefaultView.userClosedTopComponent(DefaultView.java:724)
	at org.netbeans.core.windows.view.ui.TabbedHandler.actionPerformed(TabbedHandler.java:292)
	at org.netbeans.swing.tabcontrol.TabbedContainer.postActionEvent(TabbedContainer.java:664)
	at org.netbeans.swing.tabcontrol.TabbedContainerUI.shouldPerformAction(TabbedContainerUI.java:134)
	at org.netbeans.swing.tabcontrol.plaf.DefaultTabbedContainerUI.access$2600(DefaultTabbedContainerUI.java:80)
	at org.netbeans.swing.tabcontrol.plaf.DefaultTabbedContainerUI$DisplayerActionListener.actionPerformed(DefaultTabbedContainerUI.java:1229)
	at org.netbeans.swing.tabcontrol.TabDisplayer.postActionEvent(TabDisplayer.java:513)
	at org.netbeans.swing.tabcontrol.TabDisplayerUI.shouldPerformAction(TabDisplayerUI.java:144)
	at org.netbeans.swing.tabcontrol.plaf.BasicTabDisplayerUI.access$1500(BasicTabDisplayerUI.java:74)
	at org.netbeans.swing.tabcontrol.plaf.BasicTabDisplayerUI$BasicDisplayerMouseListener.performCommand(BasicTabDisplayerUI.java:689)
	at org.netbeans.swing.tabcontrol.plaf.BasicTabDisplayerUI$BasicDisplayerMouseListener.potentialCommand(BasicTabDisplayerUI.java:674)
	at org.netbeans.swing.tabcontrol.plaf.BasicTabDisplayerUI$BasicDisplayerMouseListener.mouseReleased(BasicTabDisplayerUI.java:722)
	at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:231)
	at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:231)
	at java.awt.Component.processMouseEvent(Component.java:5488)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3126)
	at java.awt.Component.processEvent(Component.java:5253)
	at java.awt.Container.processEvent(Container.java:1966)
	at java.awt.Component.dispatchEventImpl(Component.java:3955)
	at java.awt.Container.dispatchEventImpl(Container.java:2024)
	at java.awt.Component.dispatchEvent(Component.java:3803)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822)
	at java.awt.Container.dispatchEventImpl(Container.java:2010)
	at java.awt.Window.dispatchEventImpl(Window.java:1774)
	at java.awt.Component.dispatchEvent(Component.java:3803)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
	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)