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I have 3.0M9 The message in the summary appears when I try to do Open Type Hierarchy on one of the types in my codebase. Actually I have several subclasses of org.eclipse.jface.text.templates.TemplateContext and it happens when I try to open type hierarchy on any of them. OTH seems to work fine on other types I try. the entries in the log look like this: !ENTRY org.eclipse.jdt.ui 4 10001 Jun 04, 2004 01:23:53.734 !MESSAGE Internal Error !STACK 0 java.lang.reflect.InvocationTargetException at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:283) at org.eclipse.jface.window.ApplicationWindow$1.run(ApplicationWindow.java:576) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69) at org.eclipse.jface.window.ApplicationWindow.run(ApplicationWindow.java:573) at org.eclipse.ui.internal.WorkbenchWindow.run(WorkbenchWindow.java:1588) at org.eclipse.jdt.internal.ui.typehierarchy.TypeHierarchyLifeCycle.ensureRefreshedTypeHierarchy(TypeHierarchyLifeCycle.java:107) at org.eclipse.jdt.internal.ui.typehierarchy.TypeHierarchyViewPart.updateInput(TypeHierarchyViewPart.java:497) at org.eclipse.jdt.internal.ui.typehierarchy.TypeHierarchyViewPart.setInputElement(TypeHierarchyViewPart.java:465) at org.eclipse.jdt.internal.ui.util.OpenTypeHierarchyUtil.openInViewPart(OpenTypeHierarchyUtil.java:98) at org.eclipse.jdt.internal.ui.util.OpenTypeHierarchyUtil.open(OpenTypeHierarchyUtil.java:75) at org.eclipse.jdt.ui.actions.OpenTypeHierarchyAction.run(OpenTypeHierarchyAction.java:176) at org.eclipse.jdt.ui.actions.OpenTypeHierarchyAction.run(OpenTypeHierarchyAction.java:142) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:216) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:188) at org.eclipse.jface.action.Action.runWithEvent(Action.java:881) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:899) at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:850) at org.eclipse.jface.action.ActionContributionItem$7.handleEvent(ActionContributionItem.java:769) 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:2716) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2382) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1363) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1334) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:253) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:141) at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:97) at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:307) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:256) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:127) 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:185) at org.eclipse.core.launcher.Main.run(Main.java:638) at org.eclipse.core.launcher.Main.main(Main.java:622) Caused by: java.lang.ArrayIndexOutOfBoundsException: 0 at org.eclipse.jdt.internal.compiler.parser.SourceTypeConverter.convert(SourceTypeConverter.java:92) at org.eclipse.jdt.internal.compiler.parser.SourceTypeConverter.buildCompilationUnit(SourceTypeConverter.java:83) at org.eclipse.jdt.internal.core.hierarchy.HierarchyResolver.resolve(HierarchyResolver.java:598) at org.eclipse.jdt.internal.core.hierarchy.IndexBasedHierarchyBuilder.buildForProject(IndexBasedHierarchyBuilder.java:195) at org.eclipse.jdt.internal.core.hierarchy.IndexBasedHierarchyBuilder.buildFromPotentialSubtypes(IndexBasedHierarchyBuilder.java:302) at org.eclipse.jdt.internal.core.hierarchy.IndexBasedHierarchyBuilder.build(IndexBasedHierarchyBuilder.java:131) at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.compute(TypeHierarchy.java:319) at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.refresh(TypeHierarchy.java:1234) at org.eclipse.jdt.internal.core.CreateTypeHierarchyOperation.executeOperation(CreateTypeHierarchyOperation.java:90) at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:700) at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:739) at org.eclipse.jdt.internal.core.BinaryType.newTypeHierarchy(BinaryType.java:690) at org.eclipse.jdt.internal.core.BinaryType.newTypeHierarchy(BinaryType.java:709) at org.eclipse.jdt.internal.core.BinaryType.newTypeHierarchy(BinaryType.java:679) at org.eclipse.jdt.internal.ui.typehierarchy.TypeHierarchyLifeCycle.createTypeHierarchy(TypeHierarchyLifeCycle.java:118) at org.eclipse.jdt.internal.ui.typehierarchy.TypeHierarchyLifeCycle.doHierarchyRefresh(TypeHierarchyLifeCycle.java:157) at org.eclipse.jdt.internal.ui.typehierarchy.TypeHierarchyLifeCycle$1.run(TypeHierarchyLifeCycle.java:98) at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:101) Root exception: java.lang.ArrayIndexOutOfBoundsException: 0 at org.eclipse.jdt.internal.compiler.parser.SourceTypeConverter.convert(SourceTypeConverter.java:92) at org.eclipse.jdt.internal.compiler.parser.SourceTypeConverter.buildCompilationUnit(SourceTypeConverter.java:83) at org.eclipse.jdt.internal.core.hierarchy.HierarchyResolver.resolve(HierarchyResolver.java:598) at org.eclipse.jdt.internal.core.hierarchy.IndexBasedHierarchyBuilder.buildForProject(IndexBasedHierarchyBuilder.java:195) at org.eclipse.jdt.internal.core.hierarchy.IndexBasedHierarchyBuilder.buildFromPotentialSubtypes(IndexBasedHierarchyBuilder.java:302) at org.eclipse.jdt.internal.core.hierarchy.IndexBasedHierarchyBuilder.build(IndexBasedHierarchyBuilder.java:131) at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.compute(TypeHierarchy.java:319) at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.refresh(TypeHierarchy.java:1234) at org.eclipse.jdt.internal.core.CreateTypeHierarchyOperation.executeOperation(CreateTypeHierarchyOperation.java:90) at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:700) at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:739) at org.eclipse.jdt.internal.core.BinaryType.newTypeHierarchy(BinaryType.java:690) at org.eclipse.jdt.internal.core.BinaryType.newTypeHierarchy(BinaryType.java:709) at org.eclipse.jdt.internal.core.BinaryType.newTypeHierarchy(BinaryType.java:679) at org.eclipse.jdt.internal.ui.typehierarchy.TypeHierarchyLifeCycle.createTypeHierarchy(TypeHierarchyLifeCycle.java:118) at org.eclipse.jdt.internal.ui.typehierarchy.TypeHierarchyLifeCycle.doHierarchyRefresh(TypeHierarchyLifeCycle.java:157) at org.eclipse.jdt.internal.ui.typehierarchy.TypeHierarchyLifeCycle$1.run(TypeHierarchyLifeCycle.java:98) at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:101)
Simple test case to reproduce: 1. Create cu X.java: public class X { } 2. Create cu Y.java: public class Y extends X { } 3. Open Y.java in Java editor 4. Remove its contents without saving so that editor is empty 5. Select X 6. Open type hierarchy Observe: You get ArrayIndexOutOfBoundsException: 0
Created attachment 11586 [details] Proposed patch Changed HierarchyResolver do skip cus with no top level types.
Created attachment 11587 [details] Regression tests Added regression test TypeHierarchyTests#testEmptyWorkingCopyPotentialSubtype()
Approved for RC2.
Protected SourceTypeConverter as well to return an empty CompilationUnitDeclaration if no ISourceType. Released in HEAD.
Verified in 200406110010
