Bug 84593 - [1.5][compiler] NPE during problem detection with raw reference to parameterized inner class
Summary: [1.5][compiler] NPE during problem detection with raw reference to parameteri...
Status: VERIFIED FIXED
Alias: None
Product: JDT
Classification: Eclipse Project
Component: Core (show other bugs)
Version: 3.1   Edit
Hardware: PC Windows XP
: P3 normal (vote)
Target Milestone: 3.1 M5   Edit
Assignee: Philipe Mulet CLA
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Blocks:
 
Reported: 2005-02-07 12:28 EST by Markus Keller CLA
Modified: 2005-02-15 07:23 EST (History)
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Description Markus Keller CLA 2005-02-07 12:28:40 EST 
I20050202-0800

class Super<S> {
	class A<E> { }
	<T> void take(A<S> o) {}
}
class Sub extends Super<Double> {
	void test() {
		take(new A());
	}
}


Error 2005-02-07 18:25:41.52 Exception occurred during problem detection: 
java.lang.NullPointerException
	at
org.eclipse.jdt.internal.compiler.lookup.ParameterizedTypeBinding.collectSubstitutes(ParameterizedTypeBinding.java:101)
	at
org.eclipse.jdt.internal.compiler.lookup.ParameterizedGenericMethodBinding.computeCompatibleMethod(ParameterizedGenericMethodBinding.java:131)
	at
org.eclipse.jdt.internal.compiler.lookup.Scope.computeCompatibleMethod(Scope.java:284)
	at org.eclipse.jdt.internal.compiler.lookup.Scope.findMethod(Scope.java:1012)
	at
org.eclipse.jdt.internal.compiler.lookup.Scope.getImplicitMethod(Scope.java:1713)
	at
org.eclipse.jdt.internal.compiler.ast.MessageSend.resolveType(MessageSend.java:307)
	at org.eclipse.jdt.internal.compiler.ast.Expression.resolve(Expression.java:773)
	at
org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolveStatements(AbstractMethodDeclaration.java:411)
	at
org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.resolveStatements(MethodDeclaration.java:160)
	at
org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolve(AbstractMethodDeclaration.java:389)
	at
org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1019)
	at
org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve(TypeDeclaration.java:1068)
	at
org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.resolve(CompilationUnitDeclaration.java:280)
	at org.eclipse.jdt.internal.compiler.Compiler.resolve(Compiler.java:566)
	at
org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.process(CompilationUnitProblemFinder.java:175)
	at
org.eclipse.jdt.internal.core.CompilationUnit.buildStructure(CompilationUnit.java:142)
	at org.eclipse.jdt.internal.core.Openable.generateInfos(Openable.java:203)
	at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:487)
	at
org.eclipse.jdt.internal.core.CompilationUnit.makeConsistent(CompilationUnit.java:952)
	at
org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.executeOperation(ReconcileWorkingCopyOperation.java:60)
	at
org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:710)
	at
org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:761)
	at
org.eclipse.jdt.internal.core.CompilationUnit.reconcile(CompilationUnit.java:1078)
	at
org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:91)
	at
org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:133)
	at
org.eclipse.jdt.internal.ui.text.CompositeReconcilingStrategy.reconcile(CompositeReconcilingStrategy.java:86)
	at
org.eclipse.jdt.internal.ui.text.JavaCompositeReconcilingStrategy.reconcile(JavaCompositeReconcilingStrategy.java:94)
	at org.eclipse.jface.text.reconciler.MonoReconciler.process(MonoReconciler.java:75)
	at org.eclipse.jdt.internal.ui.text.JavaReconciler.process(JavaReconciler.java:318)
	at
org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread.run(AbstractReconciler.java:204)
Comment 1 Philipe Mulet CLA 2005-02-07 12:44:54 EST 
With latest changes in method inference, NPE is gone. But still method is not
recognized to be applicable.
Comment 2 Philipe Mulet CLA 2005-02-07 12:45:49 EST 
Added GenericTypeTest#test496-497
Comment 3 Philipe Mulet CLA 2005-02-08 04:12:28 EST 
Raw conversion did not perform ok on some generic member types.
Fixed
Comment 4 Jerome Lanneluc CLA 2005-02-15 07:23:28 EST 
Verified in I20050214