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Build M5 Everytime I ask for Code Assist for an instance of a particular class, I get the attached walkback. Code Assist for static members of that class works OK. Note that this is the same class (FlowCommonUtils) that was causing problems in Bug 15972. java.lang.NullPointerException Stack trace: java/lang/Throwable.<init>()V java/lang/Throwable.<init>(Ljava/lang/String;)V java/lang/NullPointerException.<init>(Ljava/lang/String;)V java/lang/StringBuffer.append([C)Ljava/lang/StringBuffer; org/eclipse/jdt/internal/ui/text/java/ResultCollector.getParameterSignature ([[C[[C)Ljava/lang/String; org/eclipse/jdt/internal/ui/text/java/ResultCollector.createMethodCompletion ([C[C[[C[[C[C[CIII) Lorg/eclipse/jdt/internal/ui/text/java/JavaCompletionProposal; org/eclipse/jdt/internal/ui/text/java/ResultCollector.createMethodCallCompletio n([C[C[[C[[C[C[CIII) Lorg/eclipse/jdt/internal/ui/text/java/JavaCompletionProposal; org/eclipse/jdt/internal/ui/text/java/ResultCollector.acceptMethod([C[C[C[[C [[C[[C[C[C[CIIII)V org/eclipse/jdt/internal/core/CompletionRequestorWrapper.acceptMethod([C[C[C [[C[[C[[C[C[C[CIIII)V org/eclipse/jdt/internal/codeassist/CompletionEngine.findLocalMethods([C [Lorg/eclipse/jdt/internal/compiler/lookup/TypeBinding; [Lorg/eclipse/jdt/internal/compiler/lookup/MethodBinding;Lorg/eclipse/jdt/inter nal/compiler/lookup/Scope;Lorg/eclipse/jdt/internal/compiler/util/ObjectVector; ZZLorg/eclipse/jdt/internal/compiler/lookup/ReferenceBinding;Lorg/eclipse/jdt/i nternal/compiler/lookup/InvocationSite;Lorg/eclipse/jdt/internal/compiler/looku p/Scope;Z)V org/eclipse/jdt/internal/codeassist/CompletionEngine.findMethods([C [Lorg/eclipse/jdt/internal/compiler/lookup/TypeBinding;Lorg/eclipse/jdt/interna l/compiler/lookup/ReferenceBinding;Lorg/eclipse/jdt/internal/compiler/lookup/Sc ope;Lorg/eclipse/jdt/internal/compiler/util/ObjectVector;ZZZLorg/eclipse/jdt/in ternal/compiler/lookup/InvocationSite;Lorg/eclipse/jdt/internal/compiler/lookup /Scope;Z)V org/eclipse/jdt/internal/codeassist/CompletionEngine.findFieldsAndMethods ([CLorg/eclipse/jdt/internal/compiler/lookup/TypeBinding;Lorg/eclipse/jdt/inter nal/compiler/lookup/Scope;Lorg/eclipse/jdt/internal/compiler/lookup/InvocationS ite;Lorg/eclipse/jdt/internal/compiler/lookup/Scope;Z)V org/eclipse/jdt/internal/codeassist/CompletionEngine.complete (Lorg/eclipse/jdt/internal/compiler/ast/AstNode;Lorg/eclipse/jdt/internal/compi ler/lookup/Binding;Lorg/eclipse/jdt/internal/compiler/lookup/Scope;)V org/eclipse/jdt/internal/codeassist/CompletionEngine.complete (Lorg/eclipse/jdt/internal/compiler/env/ICompilationUnit;II)V org/eclipse/jdt/internal/core/Openable.codeComplete (Lorg/eclipse/jdt/internal/compiler/env/ICompilationUnit;Lorg/eclipse/jdt/inter nal/compiler/env/ICompilationUnit;ILorg/eclipse/jdt/core/ICompletionRequestor;) V org/eclipse/jdt/internal/core/CompilationUnit.codeComplete (ILorg/eclipse/jdt/core/ICompletionRequestor;)V org/eclipse/jdt/internal/ui/text/java/JavaCompletionProcessor.computeCompletion Proposals(Lorg/eclipse/jface/text/ITextViewer;I) [Lorg/eclipse/jface/text/contentassist/ICompletionProposal; org/eclipse/jface/text/contentassist/ContentAssistant.computeCompletionProposal s(Lorg/eclipse/jface/text/ITextViewer;I) [Lorg/eclipse/jface/text/contentassist/ICompletionProposal; org/eclipse/jface/text/contentassist/CompletionProposalPopup.computeProposals (I)[Lorg/eclipse/jface/text/contentassist/ICompletionProposal; org/eclipse/jface/text/contentassist/CompletionProposalPopup.access$3 (Lorg/eclipse/jface/text/contentassist/CompletionProposalPopup;I) [Lorg/eclipse/jface/text/contentassist/ICompletionProposal; org/eclipse/jface/text/contentassist/CompletionProposalPopup$1.run()V org/eclipse/swt/custom/BusyIndicator.showWhile (Lorg/eclipse/swt/widgets/Display;Ljava/lang/Runnable;)V org/eclipse/jface/text/contentassist/CompletionProposalPopup.showProposals (Z)Ljava/lang/String; org/eclipse/jface/text/contentassist/ContentAssistant.showPossibleCompletions() Ljava/lang/String; org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitEditor$AdaptedSourceViewe r.doOperation(I)V org/eclipse/ui/texteditor/TextOperationAction.run()V org/eclipse/ui/texteditor/RetargetTextEditorAction.run()V org/eclipse/jface/action/Action.runWithEvent (Lorg/eclipse/swt/widgets/Event;)V org/eclipse/jface/action/ActionContributionItem.handleWidgetSelection (Lorg/eclipse/swt/widgets/Event;)V org/eclipse/jface/action/ActionContributionItem.handleWidgetEvent (Lorg/eclipse/swt/widgets/Event;)V org/eclipse/jface/action/ActionContributionItem.access$0 (Lorg/eclipse/jface/action/ActionContributionItem;Lorg/eclipse/swt/widgets/Even t;)V org/eclipse/jface/action/ActionContributionItem$ActionListener.handleEvent (Lorg/eclipse/swt/widgets/Event;)V org/eclipse/swt/widgets/EventTable.sendEvent (Lorg/eclipse/swt/widgets/Event;)V org/eclipse/swt/widgets/Widget.notifyListeners (ILorg/eclipse/swt/widgets/Event;)V org/eclipse/swt/widgets/Display.runDeferredEvents()Z org/eclipse/swt/widgets/Display.readAndDispatch()Z org/eclipse/ui/internal/Workbench.runEventLoop()V org/eclipse/ui/internal/Workbench.run(Ljava/lang/Object;)Ljava/lang/Object; org/eclipse/core/internal/boot/InternalBootLoader.run (Ljava/lang/String;Ljava/net/URL;Ljava/lang/String;[Ljava/lang/String;) Ljava/lang/Object; org/eclipse/core/boot/BootLoader.run (Ljava/lang/String;Ljava/net/URL;Ljava/lang/String;[Ljava/lang/String;) Ljava/lang/Object; java/lang/reflect/AccessibleObject.invokeL(Ljava/lang/Object; [Ljava/lang/Object;)Ljava/lang/Object; java/lang/reflect/Method.invoke(Ljava/lang/Object;[Ljava/lang/Object;) Ljava/lang/Object; org/eclipse/core/launcher/Main.basicRun([Ljava/lang/String;) Ljava/lang/Object; org/eclipse/core/launcher/Main.run([Ljava/lang/String;)Ljava/lang/Object; org/eclipse/core/launcher/UIMain.main([Ljava/lang/String;)V
looks like parameterTypeNames or parameterNames is null. According the javadoc this should not occur. We can make the result collector code robust, but to know for how to handle this case we should now when this happens, i.e., should such a proposal be ignored, shown without a parameters? If it should be ignored can CORE not propose it in the first place. Moving to JDT CORE
The problem occur when a parameter type of a binary method is unresolved. The bugs is in BinaryTypeBinding#availableMethods. The correct code must be 'return availableMethods;' and not 'return methods;' Fixed.
