[jboss-user] [jBPM] - Open of saved BPMN2 file fails in Eclipse

[Jim Morris]

Jim Morris [https://community.jboss.org/people/jimmorris] created the discussion

"Open of saved BPMN2 file fails in Eclipse"

To view the discussion, visit: https://community.jboss.org/message/733464#733464

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Hi,  I'm trying to evalute using jBPM as an embedded component for our application.

Using the 5.2 demo download I created a process in Eclipse that was originally in web designer.  Web designer was way too slow for real work.  Twice now I can't re-open the file after shutting down and restarting Eclipse (via Ant start.demo)
I validated before saving, although that shouldn't be required.  First I get a message like "unknown gateway direction".  I manually edit the XML and add gatewayDirection="Diverging" to the <bpmn2:exclusiveGateway> tag missing the direction then I get error: "Could not open the editor: Unknown model object null"
Details:
java.lang.IllegalArgumentException: Unknown model object null
    at org.drools.eclipse.flow.ruleflow.editor.editpart.RuleFlowEditPartFactory.createEditPart(RuleFlowEditPartFactory.java:94)
    at org.eclipse.gef.ui.parts.AbstractEditPartViewer.setContents(AbstractEditPartViewer.java:626)
    at org.drools.eclipse.flow.common.editor.GenericModelEditor.initializeGraphicalViewer(GenericModelEditor.java:175)
    at org.eclipse.gef.ui.parts.GraphicalEditor.createGraphicalViewer(GraphicalEditor.java:158)
    at org.eclipse.gef.ui.parts.GraphicalEditorWithPalette.createPartControl(GraphicalEditorWithPalette.java:63)
    at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:670)
    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)
...

Any fix for this type of error.
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