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.