Guido van Rooij wrote: > psCompact.execute(); > > The execute just hangs. If you send a sig 3 (I think, experiment) to the JVM, it will dump the stack and thread traces and stuff, this may give you enough information to work out where it is hanging. iang ps: kill -3 PID_of_JVM -- News and views on what matters in finance+crypto: http://financialcryptography.com/