----------System.out:(19/879)----------
Main thread: starts a worker thread...
Main thread: waits at most 5s for the worker thread to die...
Worker thread: running...
Main thread: interrupts the worker thread...
Main thread: worker thread is interrupted
Main thread: waits for the worker thread to die...
Main thread: interrupts the worker thread...
Main thread: worker thread is interrupted
Main thread: waits for the worker thread to die...
Main thread: interrupts the worker thread...
Main thread: worker thread is interrupted
Main thread: waits for the worker thread to die...
Main thread: interrupts the worker thread...
Main thread: worker thread is interrupted
Main thread: waits for the worker thread to die...
Main thread: interrupts the worker thread...
Main thread: worker thread is interrupted
Main thread: waits for the worker thread to die...
Main thread: the worker thread dod not die