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How to recreate: 1. Select a source file in the package explorer (in my case, the .java file wouldn't compile, and kept the project from compiling because 'the build path was incomplete') 2. Right click on the resource 3. Select Build Path > Exclude. null Error Fri Aug 08 13:27:22 PDT 2008 Internal Error java.lang.reflect.InvocationTargetException at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:459) at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:354) at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:507) at org.eclipse.ui.internal.progress.ProgressMonitorJobsDialog.run(ProgressMonitorJobsDialog.java:275) at org.eclipse.ui.internal.progress.ProgressManager.run(ProgressManager.java:1191) at org.eclipse.jdt.internal.ui.wizards.buildpaths.newsourcepage.ExcludeFromBuildpathAction.run(ExcludeFromBuildpathAction.java:120) at org.eclipse.jface.action.Action.runWithEvent(Action.java:498) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:583) at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:500) at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1158) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3401) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3033) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2382) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2346) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2198) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:493) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:488) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193) 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:382) 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:549) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504) at org.eclipse.equinox.launcher.Main.run(Main.java:1236) Caused by: java.lang.IllegalArgumentException: Attempted to beginRule: R/, does not match outer scope rule: P/vft at org.eclipse.core.runtime.Assert.isLegal(Assert.java:64) at org.eclipse.core.internal.jobs.ThreadJob.illegalPush(ThreadJob.java:122) at org.eclipse.core.internal.jobs.ThreadJob.push(ThreadJob.java:232) at org.eclipse.core.internal.jobs.ImplicitJobs.begin(ImplicitJobs.java:58) at org.eclipse.core.internal.jobs.JobManager.beginRule(JobManager.java:230) at org.eclipse.core.internal.resources.WorkManager.checkIn(WorkManager.java:117) at org.eclipse.core.internal.resources.Workspace.prepareOperation(Workspace.java:1747) at org.eclipse.core.internal.resources.File.setContents(File.java:364) at org.eclipse.jdt.internal.core.JavaProject.setSharedProperty(JavaProject.java:2885) at org.eclipse.jdt.internal.core.JavaProject.writeFileEntries(JavaProject.java:2651) at org.eclipse.jdt.internal.core.JavaModelManager$7.run(JavaModelManager.java:1188) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1800) at org.eclipse.jdt.internal.core.JavaModelManager$PerProjectInfo.writeAndCacheClasspath(JavaModelManager.java:1182) at org.eclipse.jdt.internal.core.SetClasspathOperation.executeOperation(SetClasspathOperation.java:61) at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:709) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1800) at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:775) at org.eclipse.jdt.internal.core.JavaProject.setRawClasspath(JavaProject.java:2815) at org.eclipse.jdt.internal.core.JavaProject.setRawClasspath(JavaProject.java:2831) at org.eclipse.jdt.internal.corext.buildpath.ClasspathModifier.commitClassPath(ClasspathModifier.java:1042) at org.eclipse.jdt.internal.ui.wizards.buildpaths.newsourcepage.ExcludeFromBuildpathAction.exclude(ExcludeFromBuildpathAction.java:150) at org.eclipse.jdt.internal.ui.wizards.buildpaths.newsourcepage.ExcludeFromBuildpathAction.access$0(ExcludeFromBuildpathAction.java:131) at org.eclipse.jdt.internal.ui.wizards.buildpaths.newsourcepage.ExcludeFromBuildpathAction$1.run(ExcludeFromBuildpathAction.java:113) at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:446) ... 33 more Root exception: java.lang.IllegalArgumentException: Attempted to beginRule: R/, does not match outer scope rule: P/vft at org.eclipse.core.runtime.Assert.isLegal(Assert.java:64) at org.eclipse.core.internal.jobs.ThreadJob.illegalPush(ThreadJob.java:122) at org.eclipse.core.internal.jobs.ThreadJob.push(ThreadJob.java:232) at org.eclipse.core.internal.jobs.ImplicitJobs.begin(ImplicitJobs.java:58) at org.eclipse.core.internal.jobs.JobManager.beginRule(JobManager.java:230) at org.eclipse.core.internal.resources.WorkManager.checkIn(WorkManager.java:117) at org.eclipse.core.internal.resources.Workspace.prepareOperation(Workspace.java:1747) at org.eclipse.core.internal.resources.File.setContents(File.java:364) at org.eclipse.jdt.internal.core.JavaProject.setSharedProperty(JavaProject.java:2885) at org.eclipse.jdt.internal.core.JavaProject.writeFileEntries(JavaProject.java:2651) at org.eclipse.jdt.internal.core.JavaModelManager$7.run(JavaModelManager.java:1188) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1800) at org.eclipse.jdt.internal.core.JavaModelManager$PerProjectInfo.writeAndCacheClasspath(JavaModelManager.java:1182) at org.eclipse.jdt.internal.core.SetClasspathOperation.executeOperation(SetClasspathOperation.java:61) at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:709) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1800) at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:775) at org.eclipse.jdt.internal.core.JavaProject.setRawClasspath(JavaProject.java:2815) at org.eclipse.jdt.internal.core.JavaProject.setRawClasspath(JavaProject.java:2831) at org.eclipse.jdt.internal.corext.buildpath.ClasspathModifier.commitClassPath(ClasspathModifier.java:1042) at org.eclipse.jdt.internal.ui.wizards.buildpaths.newsourcepage.ExcludeFromBuildpathAction.exclude(ExcludeFromBuildpathAction.java:150) at org.eclipse.jdt.internal.ui.wizards.buildpaths.newsourcepage.ExcludeFromBuildpathAction.access$0(ExcludeFromBuildpathAction.java:131) at org.eclipse.jdt.internal.ui.wizards.buildpaths.newsourcepage.ExcludeFromBuildpathAction$1.run(ExcludeFromBuildpathAction.java:113) at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:446) at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:354) at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:507) at org.eclipse.ui.internal.progress.ProgressMonitorJobsDialog.run(ProgressMonitorJobsDialog.java:275) at org.eclipse.ui.internal.progress.ProgressManager.run(ProgressManager.java:1191) at org.eclipse.jdt.internal.ui.wizards.buildpaths.newsourcepage.ExcludeFromBuildpathAction.run(ExcludeFromBuildpathAction.java:120) at org.eclipse.jface.action.Action.runWithEvent(Action.java:498) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:583) at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:500) at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1158) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3401) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3033) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2382) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2346) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2198) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:493) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:488) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193) 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:382) 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:549) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504) at org.eclipse.equinox.launcher.Main.run(Main.java:1236)
This is working for me. Do you have more details on how to reproduce (starting from a new workspace would be great)? Also what is the build id?
I'm seeing a similar problem to this when I open projects. I see the error: An internal error occurred during: "Open Project". Attempted to beginRule: R/, does not match outer scope rule: P/myprojecthere The error log has: java.lang.IllegalArgumentException: Attempted to beginRule: R/, does not match outer scope rule: P/myprojecthere at org.eclipse.core.runtime.Assert.isLegal(Assert.java:64) at org.eclipse.core.internal.jobs.ThreadJob.illegalPush(ThreadJob.java:122) at org.eclipse.core.internal.jobs.ThreadJob.push(ThreadJob.java:232) at org.eclipse.core.internal.jobs.ImplicitJobs.begin(ImplicitJobs.java:80) at org.eclipse.core.internal.jobs.JobManager.beginRule(JobManager.java:230) at org.eclipse.core.internal.resources.WorkManager.checkIn(WorkManager.java:117) at org.eclipse.core.internal.resources.Workspace.prepareOperation(Workspace.java:1747) at org.eclipse.core.internal.resources.Project.open(Project.java:851) at org.eclipse.core.internal.resources.Project.open(Project.java:911) at org.eclipse.ui.actions.OpenResourceAction.invokeOperation(OpenResourceAction.java:153) at org.eclipse.ui.actions.WorkspaceAction.execute(WorkspaceAction.java:162) at org.eclipse.ui.actions.WorkspaceAction$2.runInWorkspace(WorkspaceAction.java:483) at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:38) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) I'm running: eclipse.buildId=I20080617-2000 java.version=1.6.0_06 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=en_GB Command-line arguments: -os linux -ws gtk -arch x86 I don't know how to recreate this from a clean project.
Can this be reproduced in a pure Eclipse SDK (i.e. using eclipse-SDK-3.4-linux-gtk.tar.gz without any additional plugin)? *** This bug has been marked as a duplicate of bug 243692 ***
Verified for 3.5M2 using I20080914-2000