#46 Exception : Abstract Syntax Tree

[Sergej Alekseev]

After closing the Abstract Tree view, the listener object is not removed and is trying to access the resources:

null

org.eclipse.jdt.core

Error

Tue Sep 09 11:05:42 CEST 2014

Exception occurred in listener of pre Java resource change notification

org.eclipse.swt.SWTException: Widget is disposed

    at org.eclipse.swt.SWT.error(SWT.java:4441)

    at org.eclipse.swt.SWT.error(SWT.java:4356)

    at org.eclipse.swt.SWT.error(SWT.java:4327)

    at org.eclipse.swt.widgets.Widget.error(Widget.java:783)

    at org.eclipse.swt.widgets.Widget.getDisplay(Widget.java:903)

    at com.drgarbage.ast.ASTPanel.updateTreeViewer(ASTPanel.java:277)

    at com.drgarbage.ast.ASTPanel.access$1(ASTPanel.java:274)

    at com.drgarbage.ast.ASTPanel$1.resourceChanged(ASTPanel.java:118)

    at org.eclipse.jdt.internal.core.DeltaProcessingState$1.run(DeltaProcessingState.java:472)

    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)

    at 

org.eclipse.jdt.internal.core.DeltaProcessingState.resourceChanged(DeltaProcessingState.java:467)

    at org.eclipse.core.internal.events.NotificationManager$1.run(NotificationManager.java:291)

    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)

    at org.eclipse.core.internal.events.NotificationManager.notify(NotificationManager.java:285)

    at org.eclipse.core.internal.events.NotificationManager.broadcastChanges(NotificationManager.java:149)

    at org.eclipse.core.internal.resources.Workspace.broadcastPostChange(Workspace.java:378)

    at org.eclipse.core.internal.resources.Workspace.endOperation(Workspace.java:1498)

    at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2322)

    at org.eclipse.ui.actions.WorkspaceModifyOperation.run(WorkspaceModifyOperation.java:118)

    at org.eclipse.ui.internal.editors.text.WorkspaceOperationRunner.run(WorkspaceOperationRunner.java:75)

    at org.eclipse.ui.internal.editors.text.WorkspaceOperationRunner.run(WorkspaceOperationRunner.java:65)

    at org.eclipse.ui.editors.text.TextFileDocumentProvider.executeOperation(TextFileDocumentProvider.java:456)

    at org.eclipse.ui.editors.text.TextFileDocumentProvider.saveDocument(TextFileDocumentProvider.java:772)

    at org.eclipse.ui.texteditor.AbstractTextEditor.performSave(AbstractTextEditor.java:5076)

    at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor.performSave(CompilationUnitEditor.java:1247)

    at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor.doSave(CompilationUnitEditor.java:1301)

    at com.drgarbage.sourcecodevisualizer.editors.JavaCodeEditor.doSave(JavaCodeEditor.java:691)

    at org.eclipse.ui.texteditor.AbstractTextEditor$TextEditorSavable.doSave(AbstractTextEditor.java:7209)

    at org.eclipse.ui.Saveable.doSave(Saveable.java:216)

    at org.eclipse.ui.internal.SaveableHelper.doSaveModel(SaveableHelper.java:355)

    at org.eclipse.ui.internal.SaveableHelper$3.run(SaveableHelper.java:199)

    at org.eclipse.ui.internal.SaveableHelper$5.run(SaveableHelper.java:283)

    at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:466)

    at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:374)

    at org.eclipse.ui.internal.WorkbenchWindow$13.run(WorkbenchWindow.java:2144)

    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)

    at org.eclipse.ui.internal.WorkbenchWindow.run(WorkbenchWindow.java:2140)

    at org.eclipse.ui.internal.SaveableHelper.runProgressMonitorOperation(SaveableHelper.java:291)

    at org.eclipse.ui.internal.SaveableHelper.runProgressMonitorOperation(SaveableHelper.java:269)

    at org.eclipse.ui.internal.SaveableHelper.saveModels(SaveableHelper.java:211)

    at org.eclipse.ui.internal.SaveableHelper.savePart(SaveableHelper.java:146)

    at org.eclipse.ui.internal.WorkbenchPage.saveSaveable(WorkbenchPage.java:3851)

    at org.eclipse.ui.internal.WorkbenchPage.saveEditor(WorkbenchPage.java:3865)

    at org.eclipse.ui.internal.handlers.SaveHandler.execute(SaveHandler.java:54)

    at org.eclipse.ui.internal.handlers.HandlerProxy.execute(HandlerProxy.java:294)

    at org.eclipse.ui.internal.handlers.E4HandlerProxy.execute(E4HandlerProxy.java:90)

    at sun.reflect.GeneratedMethodAccessor43.invoke(Unknown Source)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

    at java.lang.reflect.Method.invoke(Method.java:597)

    at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55)

    at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:247)

    at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:229)

    at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:132)

    at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:149)

    at org.eclipse.core.commands.Command.executeWithChecks(Command.java:499)

    at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508)

    at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:210)

    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.executeCommand(KeyBindingDispatcher.java:286)

    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.press(KeyBindingDispatcher.java:507)

    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.processKeyEvent(KeyBindingDispatcher.java:558)

    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.filterKeySequenceBindings(KeyBindingDispatcher.java:378)

    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher.access$0(KeyBindingDispatcher.java:324)

    at org.eclipse.e4.ui.bindings.keys.KeyBindingDispatcher$KeyDownFilter.handleEvent(KeyBindingDispatcher.java:86)

    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)

    at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1087)

    at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4184)

    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1467)

    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1490)

    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1475)

    at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1504)

    at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1500)

    at org.eclipse.swt.widgets.Canvas.sendKeyEvent(Canvas.java:496)

    at org.eclipse.swt.widgets.Control.doCommandBySelector(Control.java:1060)

    at org.eclipse.swt.widgets.Display.windowProc(Display.java:5719)

    at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)

    at org.eclipse.swt.internal.cocoa.NSResponder.interpretKeyEvents(NSResponder.java:68)

    at org.eclipse.swt.widgets.Composite.keyDown(Composite.java:594)

    at org.eclipse.swt.widgets.Display.windowProc(Display.java:5629)

    at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)

    at org.eclipse.swt.widgets.Widget.callSuper(Widget.java:221)

    at org.eclipse.swt.widgets.Widget.windowSendEvent(Widget.java:2105)

    at org.eclipse.swt.widgets.Shell.windowSendEvent(Shell.java:2329)

    at org.eclipse.swt.widgets.Display.windowProc(Display.java:5691)

    at org.eclipse.swt.internal.cocoa.OS.objc_msgSendSuper(Native Method)

    at org.eclipse.swt.widgets.Display.applicationSendEvent(Display.java:5128)

    at org.eclipse.swt.widgets.Display.applicationProc(Display.java:5277)

    at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method)

    at org.eclipse.swt.internal.cocoa.NSApplication.sendEvent(NSApplication.java:128)

    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3655)

    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1151)

    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)

    at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1032)

    at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:148)

    at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:636)

    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)

    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:579)

    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)

    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:135)

    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)

    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)

    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)

    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:382)

    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:236)

    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 org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648)

    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)

    at org.eclipse.equinox.launcher.Main.run(Main.java:1465)

[Sergej Alekseev]

fixed in revision 650