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This is the result of my first try of eclipse3.1M1. At the moment I cannot provide a sample project to reproduce the error. Sorry. But maybe it is possible to add trace statementes in findMemberType and findField of Scope.java, to verify if superInterfaces() returns null. e.g.: while (keepLooking) { ReferenceBinding[] itsInterfaces = currentType.superInterfaces(); if (itsInterfaces == null) { // log something about currentType } ... --- !SESSION Sep 03, 2004 12:22:06.189 --------------------------------------------- eclipse.buildId=I200408122000 java.version=1.5.0-rc java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=de_AT !ENTRY org.eclipse.core.runtime 4 2 Sep 03, 2004 12:22:06.199 !MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.core.runtime". !STACK 0 java.lang.NullPointerException at org.eclipse.jdt.internal.compiler.lookup.Scope.findMemberType(Scope.java:669) at org.eclipse.jdt.internal.compiler.lookup.Scope.getMemberType(Scope.java:1697) at org.eclipse.jdt.internal.compiler.lookup.Scope.getType(Scope.java:1809) at org.eclipse.jdt.internal.compiler.ast.QualifiedTypeReference.getTypeBinding(QualifiedTypeReference.java:41) at org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveType(TypeReference.java:147) at org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveSuperType(TypeReference.java:100) at org.eclipse.jdt.internal.compiler.lookup.ClassScope.findSupertype(ClassScope.java:924) at org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectSuperInterfaces(ClassScope.java:681) at org.eclipse.jdt.internal.compiler.lookup.ClassScope.connectTypeHierarchy(ClassScope.java:740) at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.connectTypeHierarchy(CompilationUnitScope.java:239) at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.completeTypeBindings(LookupEnvironment.java:183) at org.eclipse.jdt.internal.compiler.Compiler.beginToCompile(Compiler.java:307) at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:321) at org.eclipse.jdt.internal.core.builder.AbstractImageBuilder.compile(AbstractImageBuilder.java:209)
*** This bug has been marked as a duplicate of 72094 ***