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Bug 486622

Summary:	newTypeHierarchy throws IndexOutOfBounds
Product:	[Eclipse Project] JDT	Reporter:	Markus Duft <markus.duft>
Component:	Core	Assignee:	JDT-Core-Inbox <jdt-core-inbox>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	normal
Priority:	P3
Version:	4.4.2
Target Milestone:	---
Hardware:	PC
OS:	Linux
Whiteboard:	stalebug

Description Markus Duft

2016-01-27 02:35:23 EST

We have some functionality built on top of JDT that allows us to search for specific classes extending a certain well known type. We call newTypeHierarchy on that well known type (of course only if it is present). This works very well, except sometimes, and I have NO idea what causes this, we get this exception:

java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
	at java.util.ArrayList.rangeCheck(ArrayList.java:653)
	at java.util.ArrayList.get(ArrayList.java:429)
	at org.eclipse.jdt.internal.core.Buffer.notifyChanged(Buffer.java:261)
	at org.eclipse.jdt.internal.core.Buffer.close(Buffer.java:111)
	at org.eclipse.jdt.internal.core.Openable.closeBuffer(Openable.java:90)
	at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:588)
	at org.eclipse.jdt.internal.core.JavaElement.getElementInfo(JavaElement.java:316)
	at org.eclipse.jdt.internal.core.JavaElement.getElementInfo(JavaElement.java:302)
	at org.eclipse.jdt.internal.core.SearchableEnvironment.find(SearchableEnvironment.java:120)
	at org.eclipse.jdt.internal.core.SearchableEnvironment.findType(SearchableEnvironment.java:294)
	at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForType(LookupEnvironment.java:160)
	at org.eclipse.jdt.internal.compiler.lookup.PackageBinding.getType(PackageBinding.java:145)
	at org.eclipse.jdt.internal.compiler.lookup.PackageBinding.isViewedAsDeprecated(PackageBinding.java:229)
	at org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding.isViewedAsDeprecated(ReferenceBinding.java:1550)
	at org.eclipse.jdt.internal.compiler.ast.ASTNode.isTypeUseDeprecated(ASTNode.java:589)
	at org.eclipse.jdt.internal.compiler.ast.ParameterizedSingleTypeReference.internalResolveLeafType(ParameterizedSingleTypeReference.java:297)
	at org.eclipse.jdt.internal.compiler.ast.ParameterizedSingleTypeReference.internalResolveType(ParameterizedSingleTypeReference.java:146)
	at org.eclipse.jdt.internal.compiler.ast.ParameterizedSingleTypeReference.resolveType(ParameterizedSingleTypeReference.java:365)
	at org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveType(TypeReference.java:567)
	at org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveSuperType(TypeReference.java:541)
	at org.eclipse.jdt.internal.compiler.lookup.ClassScope.findSupertype(ClassScope.java:1292)
	at org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectSuperclass(ClassScope.java:938)
	at org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectTypeHierarchy(ClassScope.java:1095)
	at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.connectTypeHierarchy(CompilationUnitScope.java:323)
	at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.completeTypeBindings(LookupEnvironment.java:292)
	at org.eclipse.jdt.internal.core.hierarchy.HierarchyResolver.accept(HierarchyResolver.java:166)
	at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForType(LookupEnvironment.java:178)
	at org.eclipse.jdt.internal.compiler.lookup.PackageBinding.getTypeOrPackage(PackageBinding.java:201)
	at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.findImport(CompilationUnitScope.java:468)
	at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.findSingleImport(CompilationUnitScope.java:522)
	at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.resolveSingleImport(CompilationUnitScope.java:735)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.getTypeOrPackage(Scope.java:3309)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.getType(Scope.java:3041)
	at org.eclipse.jdt.internal.compiler.ast.ParameterizedSingleTypeReference.internalResolveLeafType(ParameterizedSingleTypeReference.java:174)
	at org.eclipse.jdt.internal.compiler.ast.ParameterizedSingleTypeReference.internalResolveType(ParameterizedSingleTypeReference.java:146)
	at org.eclipse.jdt.internal.compiler.ast.ParameterizedSingleTypeReference.resolveType(ParameterizedSingleTypeReference.java:365)
	at org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveType(TypeReference.java:567)
	at org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveSuperType(TypeReference.java:541)
	at org.eclipse.jdt.internal.compiler.lookup.ClassScope.findSupertype(ClassScope.java:1292)
	at org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectSuperclass(ClassScope.java:938)
	at org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectTypeHierarchy(ClassScope.java:1095)
	at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.connectTypeHierarchy(CompilationUnitScope.java:323)
	at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.completeTypeBindings(LookupEnvironment.java:292)
	at org.eclipse.jdt.internal.core.hierarchy.HierarchyResolver.accept(HierarchyResolver.java:166)
	at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForType(LookupEnvironment.java:178)
	at org.eclipse.jdt.internal.compiler.lookup.PackageBinding.getTypeOrPackage(PackageBinding.java:201)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.getTypeOrPackage(Scope.java:3329)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.getType(Scope.java:3041)
	at org.eclipse.jdt.internal.compiler.ast.ParameterizedSingleTypeReference.internalResolveLeafType(ParameterizedSingleTypeReference.java:174)
	at org.eclipse.jdt.internal.compiler.ast.ParameterizedSingleTypeReference.internalResolveType(ParameterizedSingleTypeReference.java:146)
	at org.eclipse.jdt.internal.compiler.ast.ParameterizedSingleTypeReference.resolveType(ParameterizedSingleTypeReference.java:365)
	at org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveType(TypeReference.java:567)
	at org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveSuperType(TypeReference.java:541)
	at org.eclipse.jdt.internal.compiler.lookup.ClassScope.findSupertype(ClassScope.java:1292)
	at org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectSuperclass(ClassScope.java:938)
	at org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectTypeHierarchy(ClassScope.java:1095)
	at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.connectTypeHierarchy(CompilationUnitScope.java:323)
	at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.completeTypeBindings(LookupEnvironment.java:292)
	at org.eclipse.jdt.internal.core.hierarchy.HierarchyResolver.accept(HierarchyResolver.java:166)
	at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForType(LookupEnvironment.java:178)
	at org.eclipse.jdt.internal.compiler.lookup.PackageBinding.getTypeOrPackage(PackageBinding.java:201)
	at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.findImport(CompilationUnitScope.java:468)
	at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.findSingleImport(CompilationUnitScope.java:522)
	at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.resolveSingleImport(CompilationUnitScope.java:735)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.getTypeOrPackage(Scope.java:3309)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.getType(Scope.java:3041)
	at org.eclipse.jdt.internal.compiler.ast.SingleTypeReference.getTypeBinding(SingleTypeReference.java:51)
	at org.eclipse.jdt.internal.compiler.ast.TypeReference.internalResolveType(TypeReference.java:472)
	at org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveType(TypeReference.java:571)
	at org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveType(TypeReference.java:567)
	at org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveSuperType(TypeReference.java:541)
	at org.eclipse.jdt.internal.compiler.lookup.ClassScope.findSupertype(ClassScope.java:1292)
	at org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectSuperclass(ClassScope.java:938)
	at org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectTypeHierarchy(ClassScope.java:1095)
	at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.connectTypeHierarchy(CompilationUnitScope.java:323)
	at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.completeTypeBindings(LookupEnvironment.java:317)
	at org.eclipse.jdt.internal.core.hierarchy.HierarchyResolver.resolve(HierarchyResolver.java:816)
	at org.eclipse.jdt.internal.core.hierarchy.IndexBasedHierarchyBuilder.buildForProject(IndexBasedHierarchyBuilder.java:227)
	at org.eclipse.jdt.internal.core.hierarchy.IndexBasedHierarchyBuilder.buildFromPotentialSubtypes(IndexBasedHierarchyBuilder.java:307)
	at org.eclipse.jdt.internal.core.hierarchy.IndexBasedHierarchyBuilder.build(IndexBasedHierarchyBuilder.java:132)
	at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.compute(TypeHierarchy.java:301)
	at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.refresh(TypeHierarchy.java:1268)
	at org.eclipse.jdt.internal.core.CreateTypeHierarchyOperation.executeOperation(CreateTypeHierarchyOperation.java:90)
	at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:729)
	at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:789)
	at org.eclipse.jdt.internal.core.SourceType.newTypeHierarchy(SourceType.java:832)
	at org.eclipse.jdt.internal.core.SourceType.newTypeHierarchy(SourceType.java:790)
	at com.wamas.ide.junit4.view.scanner.TestScanner.scan(TestScanner.java:35)
	at com.wamas.ide.junit4.view.RefreshTestsJob.run(RefreshTestsJob.java:30)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

Comment 1 Timo Kinnunen

2016-01-27 16:32:31 EST

org.eclipse.jdt.internal.core.Buffer has this comment right after the point where the exception is thrown: 

// ensure that no other thread is adding/removing a listener at the same time (https://bugs.eclipse.org/bugs/show_bug.cgi?id=126673)

Could be the fix for bug 126673 was incomplete.

Comment 2 Eclipse Genie

2019-08-18 12:41:54 EDT

This bug hasn't had any activity in quite some time. Maybe the problem got resolved, was a duplicate of something else, or became less pressing for some reason - or maybe it's still relevant but just hasn't been looked at yet.

If you have further information on the current state of the bug, please add it. The information can be, for example, that the problem still occurs, that you still want the feature, that more information is needed, or that the bug is (for whatever reason) no longer relevant.

--
The automated Eclipse Genie.