log.error("InterruptTest.SleeperThread.runSleep(): " + ex);
System.err.println("InterruptTest.SleeperThread.runSleep(): " + ex);
        void runSleep() {            try {                Thread.sleep(TIMEOUT);            }            catch(InterruptedException ex) {                log.error("InterruptTest.SleeperThread.runSleep(): " + ex);            }        }