SwingViewer: auto layout null-pointer exception

[klahaag AT googlemail.com]

When I enable/disable the autolayout on the viewer I can create a null pointer exception.

The issue is not happening on every run, but pretty often.

Looks like a concurrency issue like a missing thread lock somewhere.

Offending code:

https://gist.github.com/31e57aa84473c0887d2a

 

Platform: Win 7, JRE 1.7

 

Happens with Viewer.ThreadingModel.GRAPH_IN_SWING_THREAD and

Viewer.ThreadingModel.GRAPH_IN_ANOTHER_THREAD.

 

Regards

Klaus