Try to set variable breakpoint to variable "finished" in attached file for variable access. I only tryied it from Forte for Java CE (for example build 1099). Run debugger (via F5 in the IDE). Debugger core-dumps with text in attachment. This happens only sometimes, don't know when, maybe caused by threads.
Sorry, it's not possible to attach files (no ftp connection, maybe server down).
I will upload them later.
Added crash core, log and example file.