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Build Identifier: M20120208-0800 Seen after upgrading to 3.7.2 eclipse.buildId=M20120208-0800 java.version=1.6.0_27 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=de_AT Framework arguments: -product org.eclipse.epp.package.java.product Command-line arguments: -os win32 -ws win32 -arch x86_64 -product org.eclipse.epp.package.java.product -data workspace java.lang.NullPointerException at org.eclipse.ui.actions.SelectionListenerAction.resourceIsType(SelectionListenerAction.java:252) at org.eclipse.ui.actions.SelectionListenerAction.selectionIsOfType(SelectionListenerAction.java:276) at org.eclipse.ui.actions.CloseResourceAction.updateSelection(CloseResourceAction.java:180) at org.eclipse.ui.actions.BaseSelectionListenerAction.selectionChanged(BaseSelectionListenerAction.java:124) at org.eclipse.jdt.ui.actions.ProjectActionGroup.performSelectionChanged(ProjectActionGroup.java:136) at org.eclipse.jdt.ui.actions.ProjectActionGroup$1.selectionChanged(ProjectActionGroup.java:114) at org.eclipse.jface.viewers.Viewer$2.run(Viewer.java:164) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175) at org.eclipse.jface.viewers.Viewer.fireSelectionChanged(Viewer.java:162) at org.eclipse.jface.viewers.StructuredViewer.updateSelection(StructuredViewer.java:2188) at org.eclipse.jface.viewers.StructuredViewer.setSelection(StructuredViewer.java:1725) at org.eclipse.jface.viewers.TreeViewer.setSelection(TreeViewer.java:1139) at org.eclipse.jface.viewers.Viewer.setSelection(Viewer.java:394) at org.eclipse.jdt.internal.ui.packageview.PackageExplorerContentProvider$6.run(PackageExplorerContentProvider.java:990) at org.eclipse.jdt.internal.ui.packageview.PackageExplorerContentProvider.runUpdates(PackageExplorerContentProvider.java:195) at org.eclipse.jdt.internal.ui.packageview.PackageExplorerContentProvider.runPendingUpdates(PackageExplorerContentProvider.java:187) at org.eclipse.jdt.internal.ui.packageview.PackageExplorerContentProvider$1.runInUIThread(PackageExplorerContentProvider.java:165) at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:95) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4140) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3757) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2701) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2665) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2499) at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:679) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:668) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577) at org.eclipse.equinox.launcher.Main.run(Main.java:1410) Reproducible: Always Steps to Reproduce: Happens whenever I select a Project in Package Explorer and pops up an annoying dialog box, Navigator View is fine
> Happens whenever I select a Project in Package Explorer and pops up an > annoying dialog box, Navigator View is fine I cannot reproduce this with the following steps: 1. download 3.7.2 for Windows: http://download.eclipse.org/eclipse/downloads/drops/R-3.7.2-201202080800/index.php 2. start with new workspace 3. paste this into 'Package Explorer': public class WorksForMe {} Can you reproduce with those steps? If not, are you selecting a special (non-Java) project?
Created attachment 211858 [details] Project which shows the NPE
I took a closer look, it happens for a Project which has "natures" which are not installed in this instance of Eclipse, e.g. ZK, JavaEMF, ... I have attached the Project.
(In reply to comment #3) > I took a closer look, it happens for a Project which has "natures" which are > not installed in this instance of Eclipse, e.g. ZK, JavaEMF, ... I have > attached the Project. This works fine for me i.e. I use the steps from comment 1, import your project and all still works.
Strange, now I am not able any more to reproduce it, somehow it fixed itself after restarting, seems to have been something special happening during startup...
Please reopen if you have more detailed steps.
