Bug 81122

Summary: NPE SearchableEnvironment#find
Product: [Eclipse Project] JDT Reporter: Sebastian Davids <sdavids>
Component: CoreAssignee: JDT-Core-Inbox <jdt-core-inbox>
Status: RESOLVED DUPLICATE QA Contact:
Severity: normal    
Priority: P3    
Version: 3.1   
Target Milestone: ---   
Hardware: All   
OS: All   
Whiteboard:
Attachments:
Description Flags
fix none

Description Sebastian Davids CLA 2004-12-15 07:40:21 EST 
!ENTRY org.eclipse.jdt.core 4 4 2004-12-15 13:21:22.203
!MESSAGE Exception occurred during problem detection: 
!STACK 0
java.lang.NullPointerException
	at
org.eclipse.jdt.internal.core.SearchableEnvironment.find(SearchableEnvironment.java:103)
	at
org.eclipse.jdt.internal.core.SearchableEnvironment.findType(SearchableEnvironment.java:195)
	at
org.eclipse.jdt.internal.core.CancelableNameEnvironment.findType(CancelableNameEnvironment.java:45)
	at
org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForType(LookupEnvironment.java:119)
	at
org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.getType(LookupEnvironment.java:593)
	at
org.eclipse.jdt.internal.compiler.lookup.Scope.getJavaLangObject(Scope.java:1907)
	at
org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectSuperclass(ClassScope.java:721)
	at
org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectTypeHierarchyWithoutMembers(ClassScope.java:896)
	at
org.eclipse.jdt.internal.compiler.lookup.ClassScope.detectHierarchyCycle(ClassScope.java:1022)
	at
org.eclipse.jdt.internal.compiler.lookup.ClassScope.detectHierarchyCycle(ClassScope.java:935)
	at
org.eclipse.jdt.internal.compiler.ast.SingleTypeReference.getTypeBinding(SingleTypeReference.java:42)
	at
org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveType(TypeReference.java:141)
	at
org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveSuperType(TypeReference.java:104)
	at
org.eclipse.jdt.internal.compiler.lookup.ClassScope.findSupertype(ClassScope.java:1067)
	at
org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectSuperclass(ClassScope.java:725)
	at
org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectTypeHierarchyWithoutMembers(ClassScope.java:896)
	at
org.eclipse.jdt.internal.compiler.lookup.ClassScope.detectHierarchyCycle(ClassScope.java:1022)
	at
org.eclipse.jdt.internal.compiler.lookup.ClassScope.detectHierarchyCycle(ClassScope.java:935)
	at
org.eclipse.jdt.internal.compiler.ast.SingleTypeReference.getTypeBinding(SingleTypeReference.java:42)
	at
org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveType(TypeReference.java:141)
	at
org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveSuperType(TypeReference.java:104)
	at
org.eclipse.jdt.internal.compiler.lookup.ClassScope.findSupertype(ClassScope.java:1067)
	at
org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectSuperclass(ClassScope.java:725)
	at
org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectTypeHierarchy(ClassScope.java:862)
	at
org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.connectTypeHierarchy(CompilationUnitScope.java:243)
	at
org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.completeTypeBindings(LookupEnvironment.java:195)
	at org.eclipse.jdt.internal.compiler.Compiler.beginToCompile(Compiler.java:307)
	at org.eclipse.jdt.internal.compiler.Compiler.resolve(Compiler.java:546)
	at org.eclipse.jdt.internal.compiler.Compiler.resolve(Compiler.java:610)
	at
org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.process(CompilationUnitProblemFinder.java:165)
	at
org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.process(CompilationUnitProblemFinder.java:213)
	at
org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.executeOperation(ReconcileWorkingCopyOperation.java:78)
	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.CompilationUnit.reconcile(CompilationUnit.java:1105)
	at
org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:91)
	at
org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.initialReconcile(JavaReconcilingStrategy.java:160)
	at
org.eclipse.jdt.internal.ui.text.CompositeReconcilingStrategy.initialReconcile(CompositeReconcilingStrategy.java:114)
	at
org.eclipse.jdt.internal.ui.text.JavaCompositeReconcilingStrategy.initialReconcile(JavaCompositeReconcilingStrategy.java:122)
	at
org.eclipse.jface.text.reconciler.MonoReconciler.initialProcess(MonoReconciler.java:103)
	at
org.eclipse.jdt.internal.ui.text.JavaReconciler.initialProcess(JavaReconciler.java:307)
	at
org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread.run(AbstractReconciler.java:170)
Comment 1 Sebastian Davids CLA 2004-12-15 07:42:53 EST 
This could happen if 

JavaProjectElementInfo#resetCaches()

has been called
Comment 2 Sebastian Davids CLA 2004-12-15 07:51:11 EST 
Created attachment 16638 [details]
fix

Spec in NameLookup does not specify whether "rootToResolvedEntries == null" is
allowed or not.

This fix assumes that null is allowed.
Comment 3 Jerome Lanneluc CLA 2004-12-15 08:54:42 EST 

*** This bug has been marked as a duplicate of 79766 ***