WARNING [org.netbeans.core.windows.WindowManagerImpl] 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:1422) at org.netbeans.core.windows.WindowManagerImpl.topComponentID(WindowManagerImpl.java:1174) at org.openide.windows.WindowManager.findTopComponentID(WindowManager.java:491) at org.netbeans.core.windows.model.TopComponentSubModel.getID(TopComponentSubModel.java:343) 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:778) at org.netbeans.core.windows.Central.containsModeTopComponent(Central.java:1404) at org.netbeans.core.windows.ModeImpl.containsTopComponent(ModeImpl.java:355) 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.(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:513) at java.lang.Class.newInstance0(Class.java:355) at java.lang.Class.newInstance(Class.java:308) at org.openide.loaders.InstanceSupport.instanceCreate(InstanceSupport.java:197) at org.openide.loaders.InstanceDataObject$Ser.instanceCreate(InstanceDataObject.java:1192) at org.openide.loaders.InstanceDataObject.instanceCreate(InstanceDataObject.java:695) at org.netbeans.modules.options.keymap.LayersBridge.createAction(LayersBridge.java:345) at org.netbeans.modules.options.keymap.LayersBridge.initActions(LayersBridge.java:133) at org.netbeans.modules.options.keymap.LayersBridge.initActions(LayersBridge.java:97) at org.netbeans.modules.options.keymap.LayersBridge.getActions(LayersBridge.java:77) at org.netbeans.modules.options.keymap.KeymapModel.getActionCategories(KeymapModel.java:63) at org.netbeans.modules.options.keymap.KeymapModel.(KeymapModel.java:312) at org.netbeans.modules.options.keymap.KeymapViewModel.(KeymapViewModel.java:64) at org.netbeans.modules.options.keymap.KeymapPanel.getModel(KeymapPanel.java:332) at org.netbeans.modules.options.keymap.KeymapPanelController.getLookup(KeymapPanelController.java:63) at org.netbeans.modules.options.CategoryModel$Category.getLookup(CategoryModel.java:397) at org.netbeans.modules.options.CategoryModel$Category.access$000(CategoryModel.java:282) at org.netbeans.modules.options.CategoryModel$1.run(CategoryModel.java:63) at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:539) at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:964)