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When I try to save a java file (which contains errors). I got a NPE. Here is the stack trace: !ENTRY org.eclipse.ui 4 4 Jul 17, 2003 15:41:19.124 !MESSAGE Save Failed !ENTRY org.eclipse.ui 2 0 Jul 17, 2003 15:41:19.124 !MESSAGE Save Failed !STACK 0 java.lang.NullPointerException at java.lang.Throwable.<init>(Throwable.java) at java.lang.Throwable.<init>(Throwable.java) at java.lang.NullPointerException.<init>(NullPointerException.java:63) at org.eclipse.jdt.internal.compiler.problem.ProblemReporter.unnecessaryCast (ProblemReporter.java:2919) at org.eclipse.jdt.internal.compiler.ast.CastExpression.resolveType (CastExpression.java) at org.eclipse.jdt.internal.compiler.ast.ReturnStatement.resolve (ReturnStatement.java) at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolveStatement s(AbstractMethodDeclaration.java) at org.eclipse.jdt.internal.compiler.ast.MethodDeclaration.resolveStatements (MethodDeclaration.java) at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolve (AbstractMethodDeclaration.java) at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve (TypeDeclaration.java) at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve (TypeDeclaration.java:887) at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.resolve (CompilationUnitDeclaration.java:270) at org.eclipse.jdt.internal.compiler.Compiler.resolve(Compiler.java:589) at org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.process (CompilationUnitProblemFinder.java:172) at org.eclipse.jdt.internal.core.CompilationUnit.buildStructure (CompilationUnit.java:139) at org.eclipse.jdt.internal.core.Openable.generateInfos (Openable.java:198) at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed (JavaElement.java) at org.eclipse.jdt.internal.core.CompilationUnit.makeConsistent (CompilationUnit.java:899) at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.executeOperation (ReconcileWorkingCopyOperation.java:48) at org.eclipse.jdt.internal.core.JavaModelOperation.execute (JavaModelOperation.java:365) at org.eclipse.jdt.internal.core.JavaModelOperation.run (JavaModelOperation.java) at org.eclipse.jdt.internal.core.JavaElement.runOperation (JavaElement.java:484) at org.eclipse.jdt.internal.core.CompilationUnit.reconcile (CompilationUnit.java:1011) at org.eclipse.jdt.internal.core.CompilationUnit.reconcile (CompilationUnit.java:988) at org.eclipse.jdt.internal.core.CompilationUnit.reconcile (CompilationUnit.java:981) at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitDocumentProvider.doSaveDoc ument(CompilationUnitDocumentProvider.java:900) at org.eclipse.ui.texteditor.AbstractDocumentProvider.saveDocument (AbstractDocumentProvider.java:459) at org.eclipse.ui.texteditor.AbstractTextEditor$11.execute (AbstractTextEditor.java:3111) at org.eclipse.ui.actions.WorkspaceModifyOperation$1.run (WorkspaceModifyOperation.java:71) at org.eclipse.core.internal.resources.Workspace.run (Workspace.java:1595) at org.eclipse.ui.actions.WorkspaceModifyOperation.run (WorkspaceModifyOperation.java:85) at org.eclipse.ui.texteditor.AbstractTextEditor.performSaveOperation (AbstractTextEditor.java:3131) at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor.performSaveOperatio n(CompilationUnitEditor.java:765) at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor.doSave (CompilationUnitEditor.java:829) at org.eclipse.ui.internal.EditorManager$11.run(EditorManager.java:1090) at org.eclipse.ui.internal.EditorManager$8.run(EditorManager.java:960) at org.eclipse.jface.operation.ModalContext.runInCurrentThread (ModalContext.java:302) at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:252) at org.eclipse.jface.window.ApplicationWindow$1.run (ApplicationWindow.java:444) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java) at org.eclipse.jface.window.ApplicationWindow.run (ApplicationWindow.java:441) at org.eclipse.ui.internal.WorkbenchWindow.run (WorkbenchWindow.java:1617) at org.eclipse.ui.internal.EditorManager.runProgressMonitorOperation (EditorManager.java:966) at org.eclipse.ui.internal.EditorManager.savePart (EditorManager.java:1095) at org.eclipse.ui.internal.WorkbenchPage.savePart (WorkbenchPage.java:2371) at org.eclipse.ui.internal.WorkbenchPage.saveEditor (WorkbenchPage.java:2383) at org.eclipse.ui.internal.SaveAction.run(SaveAction.java:57) at org.eclipse.jface.action.Action.runWithEvent(Action.java:842) at org.eclipse.ui.internal.commands.old.ActionHandler.execute (ActionHandler.java:39) at org.eclipse.ui.internal.commands.old.ContextAndHandlerManager.pressed (ContextAndHandlerManager.java:180) at org.eclipse.ui.internal.commands.old.ContextAndHandlerManager.access$1 (ContextAndHandlerManager.java:165) at org.eclipse.ui.internal.commands.old.ContextAndHandlerManager$7.widgetSelected (ContextAndHandlerManager.java:274) at org.eclipse.ui.internal.AcceleratorMenu$2.handleEvent (AcceleratorMenu.java:68) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1630) at org.eclipse.ui.internal.Workbench.run(Workbench.java:1613) at org.eclipse.core.internal.boot.InternalBootLoader.run (InternalBootLoader.java:858) at org.eclipse.core.boot.BootLoader.run(BootLoader.java:461) at java.lang.reflect.AccessibleObject.invokeL(AccessibleObject.java:207) at java.lang.reflect.Method.invoke(Method.java:271) at org.eclipse.core.launcher.Main.basicRun(Main.java:291) at org.eclipse.core.launcher.Main.run(Main.java:747) at org.eclipse.core.launcher.Main.main(Main.java:583)
Can you attach the java file ?
It is a fairly big test case. I am investigating and I try to reproduce it first and then to reduce it.
The change on org.eclipse.jdt.internal.compiler.ast.MessageSend to initialize the resolveType fixed it. This is new in HEAD since build 200307170837. See version 1.45 of org.eclipse.jdt.internal.compiler.ast.MessageSend.
Fixed and released in HEAD. Regression test added.
Forgot to assign
Problem was similar to bug 40288, but in straight cast mode (not an argument) X x = (X) zork(); Fixed
Re
Fixed
Verified.
