How to assure tht javaw.exe exits from taskbar on application exit

Hi all,
My java application acquires a license when it runs.
The problem arises when the application terminates abnormally,sometimes its javaw.exe doesnt stop.This doesnt lead to the release of license by tht application.
How can i assure tht the javaw.exe file has stopped?
Thanks & Regards
Mansi

MansiSachar wrote:
Hi all,
My java application acquires a license when it runs.
The problem arises when the application terminates abnormally,sometimes its javaw.exe doesnt stop.This doesnt lead to the release of license by tht application.At worst that is nonsensical at best you left out information.
If the application terminated, regardless of how, then it cannot still be running.
A thread in java, such as the main thread, might exit, fall out of main(), via several methods. That however doesn't mean that the application has terminated. The java app will only terminate when all non-daemon threads have exited.
"Abnormal" is less than informative. If an OS system exception occurs then the app will be terminated (see above) by the OS. Nothing in java can prevent that.
If a java exception occurs and the main thread is exited then the app might or might not be terminated (see above.)
Best I can suppose is that your main() is exiting but there are still non-daemon threads running. So you must find them and stop them. A common source of that problem is incorrectly exiting a java GUI. Because the java GUI creates a thread which must be stopped. That might or might not be relevant to what you are doing. There are other sources of non-terminated threads including of course the ones that you explicitly created but which might also exist via other third party libraries that you might be using. The same applies for those however, you must terminate them for the application to exit.

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