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Test case 1) open an 3.0M8 eclipse 2) import all plugins as binary 3) import jdtcore from JDK_1_5 stream 4) create a new launch configuration with 1.5.0 jre and launch it 5) create a java project P 6) create a class X.java 7) export workspace preferences in "pref.epf" 8) add the follwoing line in this file /instance/org.eclipse.jdt.core/org.eclipse.jdt.core.compiler.source=1.5 9) import the preferences file 10) paste the following code in X.java and compile -------------------------------------------------- public class X <T extends AX<? super int>> { public static void main(String[] args) { AX<String> ax; System.out.println("SUCCESS"); } void foo(X<?> x) { } } class AX<P> { } --------------------------------------------------- a NPE occurs java.lang.NullPointerException at org.eclipse.jdt.internal.compiler.classfmt.ClassFileStruct.u2At (ClassFileStruct.java:71) at org.eclipse.jdt.internal.compiler.classfmt.FieldInfo.getGenericSignature (FieldInfo.java:85) at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.createFields (BinaryTypeBinding.java:206) at org.eclipse.jdt.internal.compiler.lookup.BinaryTypeBinding.cachePartsFrom (BinaryTypeBinding.java:191) at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.createBinaryTypeFrom (LookupEnvironment.java:316) at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.createBinaryTypeFrom (LookupEnvironment.java:299) at org.eclipse.jdt.internal.compiler.Compiler.accept(Compiler.java:191) at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForType (LookupEnvironment.java:83) at org.eclipse.jdt.internal.compiler.lookup.UnresolvedReferenceBinding.resolve (UnresolvedReferenceBinding.java:30) at org.eclipse.jdt.internal.compiler.lookup.PackageBinding.getType (PackageBinding.java:127) at org.eclipse.jdt.internal.compiler.lookup.Scope.findType (Scope.java:769) at org.eclipse.jdt.internal.compiler.lookup.Scope.getTypeOrPackage (Scope.java:1479) at org.eclipse.jdt.internal.compiler.lookup.Scope.getType (Scope.java:1263) at org.eclipse.jdt.internal.compiler.ast.ArrayTypeReference.getTypeBinding (ArrayTypeReference.java:42) at org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveType (TypeReference.java:110) at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.resolveTypesFor (SourceTypeBinding.java:802) at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.methods (SourceTypeBinding.java:665) at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.faultInTypesForFields AndMethods(SourceTypeBinding.java:344) at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.faultInTypes (CompilationUnitScope.java:344) at org.eclipse.jdt.internal.compiler.Compiler.resolve(Compiler.java:574) at org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.process (CompilationUnitProblemFinder.java:174) at org.eclipse.jdt.internal.core.CompilationUnit.buildStructure (CompilationUnit.java:145) at org.eclipse.jdt.internal.core.Openable.generateInfos (Openable.java:169) at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed (JavaElement.java:543) at org.eclipse.jdt.internal.core.CompilationUnit.makeConsistent (CompilationUnit.java:939) at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.executeOperation (ReconcileWorkingCopyOperation.java:56) 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:1051) at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile (JavaReconcilingStrategy.java:85) at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile (JavaReconcilingStrategy.java:116) at org.eclipse.jface.text.reconciler.CompositeReconcilingStrategy.reconcile (CompositeReconcilingStrategy.java:83) at org.eclipse.jdt.internal.ui.text.JavaCompositeReconcilingStrategy.reconcile (JavaCompositeReconcilingStrategy.java:97) at org.eclipse.jface.text.reconciler.MonoReconciler.process (MonoReconciler.java:76) at org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread.run (AbstractReconciler.java:189)
With latest code, the error is: ---------- 1. ERROR in C:\tests_sources\X2.java (at line 1) public class X2 <T extends AX<? super int>> { ^^^ Syntax error on token "int", Dimensions expected after this token ---------- 1 problem (1 error) No more NPE. Ok to close?
NPE still occur for me with I20040330 + JDK_1_5
It fails in the Java model. I don't think this is done using 1.5 parser and construct. Simply compiling this code is not an issue.
The getGenericSignature() needs to be called in the initialize() method of the FieldInfo. Otherwise we end up with a NPE. Fixed and released in 1.5 stream.
