It means you can't stop the process (with or without dying). To kill a process, you need to kill it, and kill requires the PID of the process to kill. See my other reply for working (tested) solution to your problem.

In reply to Re^3: Start a service, wait 10 seconds, and stop the service. by ikegami
in thread Start a service, wait 10 seconds, and stop the service. by tphyahoo

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