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NullPointer activiti-modeler when creating a new Diagram

Question asked by handyman on Dec 13, 2010
Hi all,

I use the ant script to generate the demo setup and start the activiti modeler. Everything is fine until I say New -> Business Process Diagram. After this a new window with the splash screen come up and nothing more happen.

I the catalina console is a NullPointerException at com.signavio.editor.handler.EditorHandler.getJSONString(EditorHandler.java:404).

What's wrong with my installation?

Greets
Dominique

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