Hi Yohanes, Thanks for your reply. > > Do any of you have any idea if it would be possible to kill the thread > > "immediately"? > > Use Thread.kill as you did. > > > I have a real-world program in which I have a very > > costly external program I'd like to interrupt immediately, under some > > circumstances. > > And then send a SIGTERM to that external process. This may be a dummy question, but how can I know the PID of the process? -- Guillaume Cottenceau - http://zarb.org/~gc/