take a look at attached stack trace. it is VPE only. there is a function in our application, which works intensively with attributes update.
and we get this exception. so my opinion - in your code - VpeController.notifyChangedInUiThread is not safe implemented.
exception which ErrorLog I provide - I can't reproduce on my rather slow machine, but other one can reproduce it on more quick computer.
so my opinion - you should review this function - it is definitely unsafe - and you can get whole JBoss Studio crash with this problem -
so you should make all efforts to fix this.