Community
Participate
Working Groups
The following error is received every time I save a few specific classes in my workspace. The error does not occur for every class, but always happens to these few classes. I'm using the M7 milestone build with the new UI. !ENTRY org.eclipse.core.runtime 4 2 Feb 15, 2004 21:06:18.142 !MESSAGE Problems occurred when invoking code from plug- in: "org.eclipse.core.runtime". !STACK 0 java.lang.NullPointerException at org.eclipse.jdt.internal.compiler.ast.ConstructorDeclaration.resolveStatements (ConstructorDeclaration.java:409) at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.resolve (AbstractMethodDeclaration.java:359) at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve (TypeDeclaration.java:926) at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.resolve (TypeDeclaration.java:975) at org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration.resolve (CompilationUnitDeclaration.java:272) at org.eclipse.jdt.internal.core.hierarchy.HierarchyResolver.resolve (HierarchyResolver.java:668) at org.eclipse.jdt.internal.core.hierarchy.HierarchyResolver.resolve (HierarchyResolver.java:495) at org.eclipse.jdt.internal.core.hierarchy.HierarchyBuilder.buildSupertypes (HierarchyBuilder.java:113) at org.eclipse.jdt.internal.core.hierarchy.IndexBasedHierarchyBuilder.build (IndexBasedHierarchyBuilder.java:132) at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.compute (TypeHierarchy.java:319) at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.refresh (TypeHierarchy.java:1234) at org.eclipse.jdt.internal.core.CreateTypeHierarchyOperation.executeOperation (CreateTypeHierarchyOperation.java:90) 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.SourceType.newSupertypeHierarchy (SourceType.java:539) at org.eclipse.jdt.internal.core.SourceType.newSupertypeHierarchy (SourceType.java:491) at org.eclipse.jdt.internal.corext.util.SuperTypeHierarchyCache.getTypeHierarchy (SuperTypeHierarchyCache.java:73) at org.eclipse.jdt.ui.OverrideIndicatorLabelDecorator.getOverrideIndicators (OverrideIndicatorLabelDecorator.java:151) at org.eclipse.jdt.ui.OverrideIndicatorLabelDecorator.computeAdornmentFlags (OverrideIndicatorLabelDecorator.java:121) at org.eclipse.jdt.ui.OverrideIndicatorLabelDecorator.decorateImage (OverrideIndicatorLabelDecorator.java:93) at org.eclipse.jdt.internal.ui.viewsupport.JavaUILabelProvider.decorateImage (JavaUILabelProvider.java:119) at org.eclipse.jdt.internal.ui.viewsupport.JavaUILabelProvider.getImage (JavaUILabelProvider.java:134) at org.eclipse.jface.viewers.DecoratingLabelProvider.getImage (DecoratingLabelProvider.java:73) at org.eclipse.jdt.internal.ui.viewsupport.DecoratingJavaLabelProvider.getImage (DecoratingJavaLabelProvider.java:103) at org.eclipse.jface.viewers.TreeViewer.doUpdateItem (TreeViewer.java:99) at org.eclipse.jface.viewers.AbstractTreeViewer$UpdateItemSafeRunnable.run (AbstractTreeViewer.java:87) at org.eclipse.core.internal.runtime.InternalPlatform.run (InternalPlatform.java:819) at org.eclipse.core.runtime.Platform.run(Platform.java:493) at org.eclipse.jface.viewers.AbstractTreeViewer.doUpdateItem (AbstractTreeViewer.java:469) at org.eclipse.jface.viewers.AbstractTreeViewer.internalRefresh (AbstractTreeViewer.java:1029) at org.eclipse.jface.viewers.AbstractTreeViewer.internalRefresh (AbstractTreeViewer.java:1044) at org.eclipse.jface.viewers.AbstractTreeViewer.internalRefresh (AbstractTreeViewer.java:1044) at org.eclipse.jface.viewers.AbstractTreeViewer.labelProviderChanged (AbstractTreeViewer.java:1160) at org.eclipse.jface.viewers.ContentViewer.handleLabelProviderChanged (ContentViewer.java:161) at org.eclipse.jface.viewers.StructuredViewer.handleLabelProviderChanged (StructuredViewer.java:650) at org.eclipse.jdt.internal.ui.javaeditor.JavaOutlinePage$JavaOutlineViewer.handle LabelProviderChanged(JavaOutlinePage.java:689) at org.eclipse.jface.viewers.ContentViewer$1.labelProviderChanged (ContentViewer.java:74) at org.eclipse.jdt.ui.ProblemsLabelDecorator.fireProblemsChanged (ProblemsLabelDecorator.java:352) at org.eclipse.jdt.ui.ProblemsLabelDecorator.access$0 (ProblemsLabelDecorator.java:347) at org.eclipse.jdt.ui.ProblemsLabelDecorator$1.problemsChanged (ProblemsLabelDecorator.java:327) at org.eclipse.jdt.internal.ui.viewsupport.ProblemMarkerManager$1.run (ProblemMarkerManager.java:183) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages (Synchronizer.java:102) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:2325) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2033) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1550) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1526) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench (Workbench.java:265) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:139) at org.eclipse.ui.internal.ide.IDEApplication.run (IDEApplication.java:47) at org.eclipse.core.internal.runtime.PlatformActivator$1.run (PlatformActivator.java:257) at org.eclipse.core.runtime.adaptor.EclipseStarter.run (EclipseStarter.java:104) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.eclipse.core.launcher.Main.basicRun(Main.java:279) at org.eclipse.core.launcher.Main.run(Main.java:742) at org.eclipse.core.launcher.Main.main(Main.java:581)
Could you please attach the source of one of the classes that fails? That could be very helpful for debugging purpose.
Please also indicate with JRE you are running Eclipse on.
When this occurred, I was using an IBM JRE 1.4.2. Is there anything that suggests it might be JRE related? If so, I can try a different JRE to see if that helps. The class I was trying to edit is internal code so I can't post it in full. I will see if I can trim it down or cut bits out so that it is smaller and ok to post.
Or you can send it to us by email .
You can try to start the vm using the vm option -Xj9. So add a -vmargs option on the command line or add one at the end of the command line. It has to be the last option. -vmargs -Xj9
Once I removed some of the errors and dependancy problems from the classes in question, the problems started to go away. After moving to a new workspace, I can't reproduce it at all. My guess is that there is still a problem here when a class' hierarchy has build errors or is missing, but since I can't provide a testcase, I'm closing the bug report. Thanks for your help.
Closing.
