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java.lang.NullPointerException when exporting view
I'm getting an error when trying to export a visualization from ProM6, please see the attached stack trace for details.
I'm no Java buff, so not entirely sure what might be happening here, but looks like a bug in the FreeHEP library. Please note that I'm running ProM6 on Java 1.8.0_77-b03 on Ubuntu 14.04LTS (just updated from Java 7 to make sure this wasn't the cause).
The error appears similar to what is described here: http://rapid-i.com/rapidforum/index.php?topic=6154.0;wap2
The 'Browse' button in the 'Export view as...' dialog doesn't do anything and the (presumably) file type dropdown selection is disabled (greyed out). Clicking 'OK' results in the error.
Not the end of the world, as all the visualizations are still rendered properly inside of ProM, but a bit annoying for note-taking, so I'd love to hear from anyone who's had the same problem, or any suggestions for possible fixes.