[Lee Haslup]

This has been posted several times before in various forms but the previous threads don’t seem to have solutions or workarounds that work for me.

I am running MyEclipse for Spring version 9. I’ve tried to include enough information to reproduce the problem and I’d appreciate a fix or a workaround.

I am trying to use the UML2 plugin to produce some reverse-engineered Class diagrams from an existing project as an aid to understanding the rather complex code. Because the project I am attempting to visualize is shared via Subversion/Subclipse, and because I don’t want to clutter up that project with scratch UML models, I have created a different project in MyEclipse to hold the models. Specifically, I have created a project named “UML_Test” with a UML2 model named “test2” (which appears in the “UML-Test” project as files “test2.uml” and “test2.umldi”. I am walking though the steps again as I am typing this.

On the UML2 model editing screen for “/UML_Test/test2.umldi” I see an empty model named “test2”.

From the Package Explorer I select an interface named “com.mycompany.pipeline.IArbiter.java” (from the Java project named “RunEvent”) and drag it onto the model. It is reverse engineered and drawn correctly.

I save the model, close the editor, and re-open it by double clicking on UML_Test/test2.umldi in the Package Explorer. It opens fine.

Next I select a Class that implements the interface, named “com.mycompany.pipeline.AbstractArbiter.java”, and drag it onto the model. It too is correctly reverse engineered and drawn with the Interface Realization edge correctly added to the diagram connecting the two classes.

I save the model and close it. I then attempt to re-open the model by double-clicking “UML_Test.test2.umldi”. The UML2 editor displays a red and white X with the error message “Could not open the editor: Model file /RunEvent/test2.uml could not be located”. Note that “RunEvent” is the name of the project from which I have been dragging Java resource references and not the project in which the UML2 model is saved.

Opening the Error Log I see two entries — one appears to be a warning and the other an error. The warning reads:

!ENTRY org.eclipse.ui 2 2 2011-06-23 12:19:43.129
!MESSAGE Ignored attempt to add saveable that was already registered
!STACK 0
org.eclipse.core.runtime.AssertionFailedException: unknown saveable: org.eclipse.ui.internal.DefaultSaveable@aa7be6 from part: org.eclipse.ui.internal.ErrorEditorPart@aa7be6
    at org.eclipse.ui.internal.SaveablesList.logWarning(SaveablesList.java:187)
    at org.eclipse.ui.internal.SaveablesList.addModel(SaveablesList.java:117)
    at org.eclipse.ui.internal.SaveablesList.addModels(SaveablesList.java:289)
    at org.eclipse.ui.internal.SaveablesList.postOpen(SaveablesList.java:684)
    at org.eclipse.ui.internal.PartList.partOpened(PartList.java:234)
    at org.eclipse.ui.internal.PartList.access$0(PartList.java:210)
    at org.eclipse.ui.internal.PartList$1.propertyChanged(PartList.java:40)
    at org.eclipse.ui.internal.WorkbenchPartReference.fireInternalPropertyChange(WorkbenchPartReference.java:375)
    at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:610)
    at org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:289)
    at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2863)
    at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2768)
    at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2760)
    at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2711)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2707)
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2691)
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2682)
    at org.eclipse.ui.ide.IDE.openEditor(IDE.java:651)
    at org.eclipse.ui.ide.IDE.openEditor(IDE.java:610)
    at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:365)
    at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:168)
    at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:229)
    at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:208)
    at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:274)
    at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:250)
    at org.eclipse.jdt.internal.ui.packageview.PackageExplorerActionGroup.handleOpen(PackageExplorerActionGroup.java:373)
    at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart$4.open(PackageExplorerPart.java:526)
    at org.eclipse.ui.OpenAndLinkWithEditorHelper$InternalListener.open(OpenAndLinkWithEditorHelper.java:48)
    at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:845)
    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.StructuredViewer.fireOpen(StructuredViewer.java:843)
    at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1131)
    at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1235)
    at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:264)
    at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:258)
    at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:298)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4066)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3657)
    at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640)
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
    at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438)
    at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
    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:369)
    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:619)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1407)

…and the error reads…

!ENTRY org.eclipse.ui 4 0 2011-06-23 12:19:43.122
!MESSAGE Unable to create editor ID com.genuitec.eclipse.uml2.ui.editors.MEUMLEditor: Model file /RunEvent/test2.uml could not be located
!STACK 1
org.eclipse.ui.PartInitException: Model file /RunEvent/test2.uml could not be located
    at com.genuitec.eclipse.uml2.ui.editors.MEUML2Editor.init(MEUML2Editor.java:86)
    at org.eclipse.ui.internal.EditorManager.createSite(EditorManager.java:798)
    at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:647)
    at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:465)
    at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595)
    at org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:289)
    at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2863)
    at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2768)
    at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2760)
    at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2711)
    at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2707)
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2691)
    at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2682)
    at org.eclipse.ui.ide.IDE.openEditor(IDE.java:651)
    at org.eclipse.ui.ide.IDE.openEditor(IDE.java:610)
    at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:365)
    at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:168)
    at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:229)
    at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:208)
    at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:274)
    at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:250)
    at org.eclipse.jdt.internal.ui.packageview.PackageExplorerActionGroup.handleOpen(PackageExplorerActionGroup.java:373)
    at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart$4.open(PackageExplorerPart.java:526)
    at org.eclipse.ui.OpenAndLinkWithEditorHelper$InternalListener.open(OpenAndLinkWithEditorHelper.java:48)
    at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:845)
    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.StructuredViewer.fireOpen(StructuredViewer.java:843)
    at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1131)
    at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1235)
    at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:264)
    at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:258)
    at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:298)
    at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
    at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
    at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4066)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3657)
    at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640)
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
    at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438)
    at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
    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:369)
    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:619)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1407)
!SUBENTRY 1 org.eclipse.ui 4 0 2011-06-23 12:19:43.123
!MESSAGE Model file /RunEvent/test2.uml could not be located

This appears to be very repeatable, at least by me.

[support-joy]

BigLeeH,

I shall investigate and get back to you on this.

[Author]

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