Description Michael Scharf 2006-10-27 12:02:34 EDT

I have a job that makes a blocking call. The only way to cancel the job is to call the Thread.interrupt() of the thread the job is running in:

    class BlockingJob extends Job {
        public BlockingJob() {
            super("Blocking Job");
        }
        protected IStatus run(IProgressMonitor monitor) {
            try {
                // the only way to get out is to call 
                // Thread.interrupt();
                Thread.sleep(10000000);
            } catch (InterruptedException e) {
                return Status.CANCEL_STATUS;
            }
            return Status.OK_STATUS;
        }

Unfortunately, Job.cancel() does *not* call Thread.interrupt();
The simple solution would be to override cancel and call Thread.interrupt()


    class BlockingJob extends Job {
        private Thread fCurrentThread;
        public BlockingJob() {
            super("Blocking Job");
        }
        protected IStatus run(IProgressMonitor monitor) {
            synchronized(this) {
                fCurrentThread=Thread.currentThread();
            }
            try {
                // the only way to get out is to call 
                // Thread.interrupt();
                Thread.sleep(10000000);
            } catch (InterruptedException e) {
                return Status.CANCEL_STATUS;
            }
            return Status.OK_STATUS;
        }
        public boolean cancel() {
            synchronized(this) {
                fCurrentThread.interrupt();
            }
            return super.cancel();
        }
    }


Unfortunately, this is not possible, because cancel is final :-(

It seems there is no way to cancel jobs that are in blocking calls.....


See also bug 157604.