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Opening a BPMN diagram gives the "Could not open the editor..." error

Troubleshooting


Problem

In IBM Rational Software Architect, if you try to open a BPMN diagram, the "Could not open the editor: An unexpected exception was thrown" error message appears.

Symptom

Double-click the .bpmx model from the Project Explorer in order to open the BPMN diagram. The Could not open the editor: An unexpected exception was thrown error will appear as in the screenshot:


The following output is generated in the .log file:

!MESSAGE Unable to create editor ID com.ibm.xtools.bpmn2.ui.diagram.internal.part.Bpmn2DiagramEditorID: An unexpected exception was thrown.

!STACK 0

java.lang.NullPointerException

at org.eclipse.gmf.runtime.diagram.ui.services.editpart.EditPartService.createEditPart(Unknown Source)

at org.eclipse.gef.ui.parts.AbstractEditPartViewer.setContents(Unknown Source)

at org.eclipse.gmf.runtime.diagram.ui.parts.DiagramEditor.initializeGraphicalViewerContents(Unknown Source)

at com.ibm.xtools.bpmn2.modeler.ui.internal.editor.CustomBpmn2DiagramEditorWithHeader.initializeGraphicalViewerContents(Unknown Source)

at org.eclipse.gmf.runtime.diagram.ui.parts.DiagramEditor.initializeGraphicalViewer(Unknown Source)...

It is not possible to open the BPMN diagram.

[{"Product":{"code":"SSYK2S","label":"Rational Software Architect Designer"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":"Modeling","Platform":[{"code":"PF033","label":"Windows"}],"Version":"8.5","Edition":"","Line of Business":{"code":"LOB77","label":"Automation Platform"}},{"Product":{"code":"SS4JCV","label":"Rational Software Architect for WebSphere Software"},"Business Unit":{"code":"BU053","label":"Cloud \u0026 Data Platform"},"Component":"Modeling","Platform":[{"code":"PF033","label":"Windows"}],"Version":"8.5","Edition":"","Line of Business":{"code":"LOB15","label":"Integration"}}]

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Document Information

Modified date:
10 September 2020

UID

swg21622787

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