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I am using Eclipse 3.0 build 200406192000 In the Java editor when a method is overridden, then is a little green arrow that appears in the left margin, if you click it, it brings in the code from the parent class. But if the parent class code is unavailable, like from Object.class, I get errors. If I override toString() and click the green arrow I get this error dialog: "Unable to create part", and this entry is created in the .log file. !ENTRY org.eclipse.core.runtime 4 2 Aug 19, 2004 11:11:14.299 !MESSAGE Problems occurred when invoking code from plug- in: "org.eclipse.core.runtime". !STACK 0 java.lang.ClassCastException: org.eclipse.ui.internal.EditorPane$1 $ErrorEditorPart at org.eclipse.jdt.internal.ui.javaeditor.ASTProvider.activeJavaEditorChanged (ASTProvider.java:218) at org.eclipse.jdt.internal.ui.javaeditor.ASTProvider.access$0 (ASTProvider.java:213) at org.eclipse.jdt.internal.ui.javaeditor.ASTProvider$ActivationListener.partActiva ted(ASTProvider.java:70) at org.eclipse.ui.internal.PartListenerList2$1.run (PartListenerList2.java:45) at org.eclipse.core.internal.runtime.InternalPlatform.run (InternalPlatform.java:615) at org.eclipse.core.runtime.Platform.run(Platform.java:758) at org.eclipse.ui.internal.PartListenerList2.firePartActivated (PartListenerList2.java:43) at org.eclipse.ui.internal.WWinPartService$1.partActivated (WWinPartService.java:30) at org.eclipse.ui.internal.PartListenerList2$1.run (PartListenerList2.java:45) at org.eclipse.core.internal.runtime.InternalPlatform.run (InternalPlatform.java:615) at org.eclipse.core.runtime.Platform.run(Platform.java:758) at org.eclipse.ui.internal.PartListenerList2.firePartActivated (PartListenerList2.java:43) at org.eclipse.ui.internal.WorkbenchPage.firePartActivated (WorkbenchPage.java:1361) at org.eclipse.ui.internal.WorkbenchPage.setActivePart (WorkbenchPage.java:2684) at org.eclipse.ui.internal.WorkbenchPage.requestActivation (WorkbenchPage.java:2361) at org.eclipse.ui.internal.PartPane.requestActivation(PartPane.java:304) at org.eclipse.ui.internal.EditorPane.requestActivation (EditorPane.java:127) at org.eclipse.ui.internal.PartPane.setFocus(PartPane.java:325) at org.eclipse.ui.internal.EditorPane.setFocus(EditorPane.java:154) at org.eclipse.ui.internal.PartStack.presentationSelectionChanged (PartStack.java:677) at org.eclipse.ui.internal.PartStack.access$0(PartStack.java:660) at org.eclipse.ui.internal.PartStack$1.selectPart(PartStack.java:94) at org.eclipse.ui.internal.presentations.DefaultPartPresentation.setSelection (DefaultPartPresentation.java:1403) at org.eclipse.ui.internal.presentations.DefaultPartPresentation$4.handleEvent (DefaultPartPresentation.java:166) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:796) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:820) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:805) at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:613) at org.eclipse.swt.custom.CTabFolder.setSelection(CTabFolder.java:2951) at org.eclipse.swt.custom.CTabFolder.onMouse(CTabFolder.java:1861) at org.eclipse.swt.custom.CTabFolder$1.handleEvent(CTabFolder.java:289) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:796) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:2732) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2398) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1375) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1346) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench (Workbench.java:252) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:141) at org.eclipse.ui.internal.ide.IDEApplication.run (IDEApplication.java:96) at org.eclipse.core.internal.runtime.PlatformActivator$1.run (PlatformActivator.java:335) at org.eclipse.core.runtime.adaptor.EclipseStarter.run (EclipseStarter.java:272) at org.eclipse.core.runtime.adaptor.EclipseStarter.run (EclipseStarter.java:128) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.eclipse.core.launcher.Main.basicRun(Main.java:186) at org.eclipse.core.launcher.Main.run(Main.java:647) at org.eclipse.core.launcher.Main.main(Main.java:631)
The CCE is covered by bug 70838 but this is "only" a followup of some other error. Is there something else in .log or in the console? How did you install Eclipse? Maybe you run into bug 70853. Try installing the full Eclipse SDK (not Platform SDK). I'm marking this bug as REMIND. Will reopen if we have more info about the real cause for the CCE.
Get rid of deprecated state.
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