This Bugzilla instance is a read-only archive of historic NetBeans bug reports. To report a bug in NetBeans please follow the project's instructions for reporting issues.
Caused by rapidly clicking twice somewhere in the options dialog (or maybe the main window?) as the options dialog was initializing. Technically the bug may be that CloneDocumentAction should not expect only to be constructed on the AWT thread. java.lang.IllegalStateException: Assertion failed. WindowsAPI is required to be called from AWT thread only, see http://core.netbeans.org/proposals/ threading/ at org.netbeans.core.windows.WindowManagerImpl.assertEventDispatchThreadWeak(WindowManagerImpl.java:1432) at org.netbeans.core.windows.WindowManagerImpl.topComponentID(WindowManagerImpl.java:1178) at org.openide.windows.WindowManager.findTopComponentID(WindowManager.java:491) at org.netbeans.core.windows.model.TopComponentSubModel.getID(TopComponentSubModel.java:348) at org.netbeans.core.windows.model.TopComponentSubModel.containsTopComponent(TopComponentSubModel.java:238) at org.netbeans.core.windows.model.DefaultModeModel.containsTopComponent(DefaultModeModel.java:238) at org.netbeans.core.windows.model.DefaultModel.containsModeTopComponent(DefaultModel.java:777) at org.netbeans.core.windows.Central.containsModeTopComponent(Central.java:1401) at org.netbeans.core.windows.ModeImpl.containsTopComponent(ModeImpl.java:342) at org.netbeans.core.windows.WindowManagerImpl.findMode(WindowManagerImpl.java:402) at org.netbeans.core.windows.actions.CloneDocumentAction.updateEnabled(CloneDocumentAction.java:74) at org.netbeans.core.windows.actions.CloneDocumentAction.<init>(CloneDocumentAction.java:46) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:494) at java.lang.Class.newInstance0(Class.java:350) at java.lang.Class.newInstance(Class.java:303) at org.openide.loaders.InstanceSupport.instanceCreate(InstanceSupport.java:197) at org.openide.loaders.InstanceDataObject$Ser.instanceCreate(InstanceDataObject.java:1192) at org.openide.loaders.InstanceDataObject.instanceCreate(InstanceDataObject.java:695) at org.netbeans.modules.options.keymap.LayersBridge.createAction(LayersBridge.java:344) at org.netbeans.modules.options.keymap.LayersBridge.initActions(LayersBridge.java:134) at org.netbeans.modules.options.keymap.LayersBridge.initActions(LayersBridge.java:98) at org.netbeans.modules.options.keymap.LayersBridge.getActions(LayersBridge.java:78) at org.netbeans.modules.options.keymap.KeymapModel.getActionCategories(KeymapModel.java:63) at org.netbeans.modules.options.keymap.KeymapModel.<init>(KeymapModel.java:312) at org.netbeans.modules.options.keymap.KeymapViewModel.<init>(KeymapViewModel.java:65) at org.netbeans.modules.options.keymap.KeymapPanel.getModel(KeymapPanel.java:332) at org.netbeans.modules.options.keymap.KeymapPanelController.getLookup(KeymapPanelController.java:63) at org.netbeans.modules.options.CategoryModel$Category.getLookup(CategoryModel.java:385) at org.netbeans.modules.options.CategoryModel$Category.access$000(CategoryModel.java:274) at org.netbeans.modules.options.CategoryModel$1.run(CategoryModel.java:63) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:539) [catch] at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:964)
*** Issue 107321 has been marked as a duplicate of this issue. ***
*** Issue 109201 has been marked as a duplicate of this issue. ***
Method getLookup doesn't need to be called from AWT thread, javadoc for OptionsPanelController now mentions it see #106989
I've seen this several times too. It usually happens when clicking Tools-Options right after starting the IDE.
moving opened issues from TM <= 6.1 to TM=Dev
Reassigning to new module owner jskrivanek.
*** This issue has been marked as a duplicate of 126355 ***