Designer Perspective in Eclipse is inactive

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ct1

Sirs:

I have been using Eclipse Designer 5.8 in Eclipse Helios Service Release 2 Build id: 20110218-0911 for several months.  Now, when I try to edit one of the .activiti files, I get the exception shown below.  After trying various things:  restarting Eclipse, rebooting the PC (Windows 7), I decided to try to reinstall the Activiti Plugin.  The Update Sites provides only version 5.9.  I would like to continue using 5.8 untill I reach a clean breaking point in my project (at present I have been tasked to create some load tests for the workflow engine in version 5.8 to use a a benchmark for load testing 5.9).  I have worked a little with the 5.9 Designer and it has some huge advantages over the 5.8 designer, but for this project I need to work with the 5.8 Designer.  One of the bpmn20 files whose related .activiti file I cannot update is below. 

Is there a way for me to download the 5.8 Designer? 

Do you have any other suggestions for how I can continue to update my 5.8 processes (the .activiti files)?

Thank you for your help.



Exception:

java.lang.NullPointerException   at org.eclipse.graphiti.internal.services.impl.MigrationServiceImpl.shouldMigrate070To080(MigrationServiceImpl.java:85)   at org.activiti.designer.eclipse.editor.ActivitiDiagramEditor.setInput(ActivitiDiagramEditor.java:118)   at org.eclipse.gef.ui.parts.GraphicalEditor.init(GraphicalEditor.java:346)   at org.eclipse.graphiti.ui.internal.editor.DiagramEditorInternal.init(DiagramEditorInternal.java:1093)   at org.activiti.designer.eclipse.editor.ActivitiDiagramEditor.init(ActivitiDiagramEditor.java:51)   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.PartPane.setVisible(PartPane.java:313)   at org.eclipse.ui.internal.presentations.PresentablePart.setVisible(PresentablePart.java:180)   at org.eclipse.ui.internal.presentations.util.PresentablePartFolder.select(PresentablePartFolder.java:270)   at org.eclipse.ui.internal.presentations.util.LeftToRightTabOrder.select(LeftToRightTabOrder.java:65)   at org.eclipse.ui.internal.presentations.util.TabbedStackPresentation.selectPart(TabbedStackPresentation.java:473)   at org.eclipse.ui.internal.PartStack.refreshPresentationSelection(PartStack.java:1254)   at org.eclipse.ui.internal.PartStack.setSelection(PartStack.java:1207)   at org.eclipse.ui.internal.PartStack.showPart(PartStack.java:1606)   at org.eclipse.ui.internal.PartStack.add(PartStack.java:497)   at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:103)   at org.eclipse.ui.internal.PartStack.add(PartStack.java:483)   at org.eclipse.ui.internal.EditorStack.add(EditorStack.java:112)   at org.eclipse.ui.internal.EditorSashContainer.addEditor(EditorSashContainer.java:63)   at org.eclipse.ui.internal.EditorAreaHelper.addToLayout(EditorAreaHelper.java:225)   at org.eclipse.ui.internal.EditorAreaHelper.addEditor(EditorAreaHelper.java:213)   at org.eclipse.ui.internal.EditorManager.createEditorTab(EditorManager.java:778)   at org.eclipse.ui.internal.EditorManager.openEditorFromDescriptor(EditorManager.java:677)   at org.eclipse.ui.internal.EditorManager.openEditor(EditorManager.java:638)   at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2860)   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.jface.action.Action.runWithEvent(Action.java:498)   at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584)   at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501)   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: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:620)   at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575)   at org.eclipse.equinox.launcher.Main.run(Main.java:1408)

bpmn20 file:

<?xml version="1.0" encoding="UTF-8"?>
<definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:activiti="http://activiti.org/bpmn" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:omgdc="http://www.omg.org/spec/DD/20100524/DC" xmlns:omgdi="http://www.omg.org/spec/DD/20100524/DI" typeLanguage="http://www.w3.org/2001/XMLSchema" expressionLanguage="http://www.w3.org/1999/XPath" targetNamespace="http://www.activiti.org/test">
  <process id="B-Process" name="B-Process">
    <documentation>Place documentation for the 'B-Process' process here.</documentation>
    <scriptTask id="bProcessLog" name="B Process Log" scriptFormat="groovy">
      <script><![CDATA[Date now = new Date();
String nowStr = now.format('yyyy/MM/dd HH:mm:ss SSS');
print "B-Process started at $nowStr \n";]]></script>
    </scriptTask>
    <endEvent id="procBTimerEnd" name="ProcB Timer End"></endEvent>
    <sequenceFlow id="flow3" name="" sourceRef="bProcessLog" targetRef="nap"></sequenceFlow>
    <sequenceFlow id="flow4" name="" sourceRef="nap" targetRef="procBTimerEnd"></sequenceFlow>
    <scriptTask id="nap" name="Nap" activiti:async="true" scriptFormat="groovy">
      <script><![CDATA[print "B-Process going to sleep\n";Thread.sleep(5000);print "B-Process is awake now.\n";]]></script>
    </scriptTask>
    <startEvent id="bProcessStart" name="B-Process-Start"></startEvent>
    <sequenceFlow id="flow5" name="" sourceRef="bProcessStart" targetRef="bProcessLog"></sequenceFlow>
  </process>
  <bpmndi:BPMNDiagram id="BPMNDiagram_B-Process">
    <bpmndi:BPMNPlane bpmnElement="B-Process" id="BPMNPlane_B-Process">
      <bpmndi:BPMNShape bpmnElement="bProcessLog" id="BPMNShape_bProcessLog">
        <omgdc:Bounds height="55" width="105" x="300" y="160"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="procBTimerEnd" id="BPMNShape_procBTimerEnd">
        <omgdc:Bounds height="35" width="35" x="640" y="170"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="nap" id="BPMNShape_nap">
        <omgdc:Bounds height="55" width="105" x="460" y="160"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNShape bpmnElement="bProcessStart" id="BPMNShape_bProcessStart">
        <omgdc:Bounds height="35" width="35" x="180" y="170"></omgdc:Bounds>
      </bpmndi:BPMNShape>
      <bpmndi:BPMNEdge bpmnElement="flow3" id="BPMNEdge_flow3">
        <omgdi:waypoint x="405" y="187"></omgdi:waypoint>
        <omgdi:waypoint x="460" y="187"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow4" id="BPMNEdge_flow4">
        <omgdi:waypoint x="565" y="187"></omgdi:waypoint>
        <omgdi:waypoint x="640" y="187"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
      <bpmndi:BPMNEdge bpmnElement="flow5" id="BPMNEdge_flow5">
        <omgdi:waypoint x="215" y="187"></omgdi:waypoint>
        <omgdi:waypoint x="300" y="187"></omgdi:waypoint>
      </bpmndi:BPMNEdge>
    </bpmndi:BPMNPlane>
  </bpmndi:BPMNDiagram>
</definitions>
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trademak

See my other post, it would be fine to use Activiti Designer 5.9.1 for Activiti 5.8.

Best regards,