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I200410260800 (also in M2), new workspace - create new Java project named "J" - create p/C.java: package p; class C { } class CC extends C { void method() { } } - select C.java in Package Explorer and do Copy-Paste - enter "D" as new name - open D.java Error 2004-10-29 13:12:00.629 Problems occurred when invoking code from plug-in: "org.eclipse.core.runtime". java.lang.ArrayIndexOutOfBoundsException: 3 at org.eclipse.jdt.internal.core.NameLookup.<init>(NameLookup.java:160) at org.eclipse.jdt.internal.core.JavaProject.newNameLookup(JavaProject.java:2333) at org.eclipse.jdt.internal.core.SearchableEnvironment.<init>(SearchableEnvironment.java:56) at org.eclipse.jdt.internal.core.JavaProject.newSearchableNameEnvironment(JavaProject.java:2351) at org.eclipse.jdt.internal.core.hierarchy.HierarchyBuilder.<init>(HierarchyBuilder.java:86) at org.eclipse.jdt.internal.core.hierarchy.IndexBasedHierarchyBuilder.<init>(IndexBasedHierarchyBuilder.java:98) at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.compute(TypeHierarchy.java:316) at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.refresh(TypeHierarchy.java:1243) 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.SourceType.newSupertypeHierarchy(SourceType.java:651) at org.eclipse.jdt.internal.core.SourceType.newSupertypeHierarchy(SourceType.java:603) at org.eclipse.jdt.internal.corext.util.SuperTypeHierarchyCache.getTypeHierarchy(SuperTypeHierarchyCache.java:88) at org.eclipse.jdt.internal.corext.util.SuperTypeHierarchyCache.getTypeHierarchy(SuperTypeHierarchyCache.java:78) at org.eclipse.jdt.ui.OverrideIndicatorLabelDecorator.getOverrideIndicators(OverrideIndicatorLabelDecorator.java:160) at org.eclipse.jdt.ui.OverrideIndicatorLabelDecorator.computeAdornmentFlags(OverrideIndicatorLabelDecorator.java:128) at org.eclipse.jdt.ui.OverrideIndicatorLabelDecorator.decorate(OverrideIndicatorLabelDecorator.java:239) at org.eclipse.ui.internal.decorators.LightweightDecoratorDefinition.decorate(LightweightDecoratorDefinition.java:145) at org.eclipse.ui.internal.decorators.LightweightDecoratorManager$LightweightRunnable.run(LightweightDecoratorManager.java:65) at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:616) at org.eclipse.core.runtime.Platform.run(Platform.java:747) at org.eclipse.ui.internal.decorators.LightweightDecoratorManager.decorate(LightweightDecoratorManager.java:259) at org.eclipse.ui.internal.decorators.LightweightDecoratorManager.getDecorations(LightweightDecoratorManager.java:244) at org.eclipse.ui.internal.decorators.DecorationScheduler$1.run(DecorationScheduler.java:303) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:66)
Created attachment 15554 [details] This patch seems to fix the problem...
Released patch and added regression test NameLookupTests2#testDuplicateTypesInWorkingCopies
Verified for 3.1 M3 with build I200411040010 + jdt.core HEAD