#2 Project View references deleted fragments
If multiple CodeFiles are deleted at once from the ProjectView, there are occasionally error messages because the ProjectView tries to do something with the removed fragments, but the repository does not allow it.
!ENTRY org.eclipse.ui.workbench 4 2 2008-05-28 14:38:41.000
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".
!STACK 0
java.lang.IllegalArgumentException: unregistered Fragment: Name: MainForm.cs uuid: 19d652e5-99cb-44f4-880b-eb122e9440c4
at org.deft.repository.xfsr.XmlFileSystemRepository.canContain(XmlFileSystemRepository.java:273)
at org.deft.project.actions.AbstractImportAction.checkEnabled(AbstractImportAction.java:86)
at org.deft.project.actions.AbstractImportAction.selectionChanged(AbstractImportAction.java:154)
at org.eclipse.ui.internal.AbstractPartSelectionTracker$1.run(AbstractPartSelectionTracker.java:119)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
at org.eclipse.core.runtime.Platform.run(Platform.java:857)
at org.eclipse.ui.internal.AbstractPartSelectionTracker.fireSelection(AbstractPartSelectionTracker.java:117)
at org.eclipse.ui.internal.WindowPartSelectionTracker$1.selectionChanged(WindowPartSelectionTracker.java:38)
at org.eclipse.ui.internal.AbstractPartSelectionTracker$1.run(AbstractPartSelectionTracker.java:119)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
at org.eclipse.core.runtime.Platform.run(Platform.java:857)
at org.eclipse.ui.internal.AbstractPartSelectionTracker.fireSelection(AbstractPartSelectionTracker.java:117)
at org.eclipse.ui.internal.PagePartSelectionTracker$1.selectionChanged(PagePartSelectionTracker.java:45)
at org.eclipse.jface.viewers.Viewer$2.run(Viewer.java:162)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
at org.eclipse.core.runtime.Platform.run(Platform.java:857)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:46)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:199)
at org.eclipse.jface.viewers.Viewer.fireSelectionChanged(Viewer.java:160)
at org.eclipse.jface.viewers.StructuredViewer.updateSelection(StructuredViewer.java:2047)
at org.eclipse.jface.viewers.StructuredViewer.handleInvalidSelection(StructuredViewer.java:1102)
at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1381)
at org.eclipse.jface.viewers.TreeViewer.preservingSelection(TreeViewer.java:390)
at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1330)
at org.eclipse.jface.viewers.StructuredViewer.refresh(StructuredViewer.java:1458)
at org.eclipse.jface.viewers.ColumnViewer.refresh(ColumnViewer.java:547)
at org.eclipse.ui.navigator.CommonViewer.refresh(CommonViewer.java:303)
at org.eclipse.ui.navigator.CommonViewer.refresh(CommonViewer.java:401)
at org.eclipse.jface.viewers.StructuredViewer.refresh(StructuredViewer.java:1390)
at org.deft.project.ProjectViewContentProvider$1.runInUIThread(ProjectViewContentProvider.java:260)
at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:94)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:129)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3659)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3296)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.block(ModalContext.java:158)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:326)
at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:495)
at org.eclipse.ui.internal.progress.ProgressMonitorJobsDialog.run(ProgressMonitorJobsDialog.java:268)
at org.eclipse.ui.internal.progress.ProgressManager.run(ProgressManager.java:1123)
at org.deft.project.actions.DeleteFragmentAction.deleteFragments(DeleteFragmentAction.java:393)
at org.deft.project.actions.DeleteFragmentAction.run(DeleteFragmentAction.java:149)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
at org.eclipse.jface.commands.ActionHandler.execute(ActionHandler.java:119)
at org.eclipse.core.commands.Command.executeWithChecks(Command.java:475)
at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:429)
at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:165)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeCommand(WorkbenchKeyboard.java:470)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(WorkbenchKeyboard.java:821)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(WorkbenchKeyboard.java:879)
at org.eclipse.ui.internal.keys.OutOfOrderListener.handleEvent(OutOfOrderListener.java:76)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:938)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:962)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:947)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:975)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:971)
at org.eclipse.swt.widgets.Widget.wmKeyDown(Widget.java:1570)
at org.eclipse.swt.widgets.Control.WM_KEYDOWN(Control.java:3992)
at org.eclipse.swt.widgets.Tree.WM_KEYDOWN(Tree.java:5480)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:3701)
at org.eclipse.swt.widgets.Tree.windowProc(Tree.java:5370)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4364)
at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2265)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3291)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2389)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2353)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2219)
at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:289)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:461)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.deft.Deft.start(Deft.java:41)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:169)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:508)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:447)
at org.eclipse.equinox.launcher.Main.run(Main.java:1173)
at org.eclipse.equinox.launcher.Main.main(Main.java:1148)
Sometimes there is also a ConcurrentModificationException:
!ENTRY org.eclipse.ui.workbench 4 2 2008-05-28 14:46:56.578
!MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.ui.workbench".
!STACK 0
java.util.ConcurrentModificationException
at java.util.AbstractList$Itr.checkForComodification(Unknown Source)
at java.util.AbstractList$Itr.next(Unknown Source)
at java.util.Collections$UnmodifiableCollection$1.next(Unknown Source)
at org.deft.repository.fragment.consistency.TuPrologRuleChecker.addTree(TuPrologRuleChecker.java:73)
at org.deft.repository.fragment.consistency.TuPrologRuleChecker.addTree(TuPrologRuleChecker.java:75)
at org.deft.repository.fragment.consistency.TuPrologRuleChecker.setupFacts(TuPrologRuleChecker.java:60)
at org.deft.repository.fragment.consistency.RuleChecker.canContain(RuleChecker.java:28)
at org.deft.repository.xfsr.XmlFileSystemRepository.canContain(XmlFileSystemRepository.java:276)
at org.deft.project.actions.AbstractImportAction.checkEnabled(AbstractImportAction.java:86)
at org.deft.project.actions.AbstractImportAction.selectionChanged(AbstractImportAction.java:154)
at org.eclipse.ui.internal.AbstractPartSelectionTracker$1.run(AbstractPartSelectionTracker.java:119)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
at org.eclipse.core.runtime.Platform.run(Platform.java:857)
at org.eclipse.ui.internal.AbstractPartSelectionTracker.fireSelection(AbstractPartSelectionTracker.java:117)
at org.eclipse.ui.internal.WindowPartSelectionTracker$1.selectionChanged(WindowPartSelectionTracker.java:38)
at org.eclipse.ui.internal.AbstractPartSelectionTracker$1.run(AbstractPartSelectionTracker.java:119)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
at org.eclipse.core.runtime.Platform.run(Platform.java:857)
at org.eclipse.ui.internal.AbstractPartSelectionTracker.fireSelection(AbstractPartSelectionTracker.java:117)
at org.eclipse.ui.internal.PagePartSelectionTracker$1.selectionChanged(PagePartSelectionTracker.java:45)
at org.eclipse.jface.viewers.Viewer$2.run(Viewer.java:162)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:37)
at org.eclipse.core.runtime.Platform.run(Platform.java:857)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:46)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:199)
at org.eclipse.jface.viewers.Viewer.fireSelectionChanged(Viewer.java:160)
at org.eclipse.jface.viewers.StructuredViewer.updateSelection(StructuredViewer.java:2047)
at org.eclipse.jface.viewers.StructuredViewer.handleInvalidSelection(StructuredViewer.java:1102)
at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1381)
at org.eclipse.jface.viewers.TreeViewer.preservingSelection(TreeViewer.java:390)
at org.eclipse.jface.viewers.StructuredViewer.preservingSelection(StructuredViewer.java:1330)
at org.eclipse.jface.viewers.StructuredViewer.refresh(StructuredViewer.java:1458)
at org.eclipse.jface.viewers.ColumnViewer.refresh(ColumnViewer.java:547)
at org.eclipse.ui.navigator.CommonViewer.refresh(CommonViewer.java:303)
at org.eclipse.ui.navigator.CommonViewer.refresh(CommonViewer.java:401)
at org.eclipse.jface.viewers.StructuredViewer.refresh(StructuredViewer.java:1390)
at org.deft.project.ProjectViewContentProvider$1.runInUIThread(ProjectViewContentProvider.java:260)
at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:94)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:129)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3659)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3296)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.block(ModalContext.java:158)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:326)
at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:495)
at org.eclipse.ui.internal.progress.ProgressMonitorJobsDialog.run(ProgressMonitorJobsDialog.java:268)
at org.eclipse.ui.internal.progress.ProgressManager.run(ProgressManager.java:1123)
at org.deft.project.actions.DeleteFragmentAction.deleteFragments(DeleteFragmentAction.java:393)
at org.deft.project.actions.DeleteFragmentAction.run(DeleteFragmentAction.java:149)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
at org.eclipse.jface.commands.ActionHandler.execute(ActionHandler.java:119)
at org.eclipse.core.commands.Command.executeWithChecks(Command.java:475)
at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:429)
at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:165)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeCommand(WorkbenchKeyboard.java:470)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(WorkbenchKeyboard.java:821)
at org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(WorkbenchKeyboard.java:879)
at org.eclipse.ui.internal.keys.OutOfOrderListener.handleEvent(OutOfOrderListener.java:76)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:938)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:962)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:947)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:975)
at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:971)
at org.eclipse.swt.widgets.Widget.wmKeyDown(Widget.java:1570)
at org.eclipse.swt.widgets.Control.WM_KEYDOWN(Control.java:3992)
at org.eclipse.swt.widgets.Tree.WM_KEYDOWN(Tree.java:5480)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:3701)
at org.eclipse.swt.widgets.Tree.windowProc(Tree.java:5370)
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4351)
at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2265)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3291)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2389)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2353)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2219)
at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:289)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:461)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.deft.Deft.start(Deft.java:41)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:169)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:363)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:176)
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.equinox.launcher.Main.invokeFramework(Main.java:508)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:447)
at org.eclipse.equinox.launcher.Main.run(Main.java:1173)
at org.eclipse.equinox.launcher.Main.main(Main.java:1148)
This is probably the ProjectViewContentProvider#update(Observable, Object) not being threadsafe.
