Java program that kills itself on new instance

Asked Nov 12 '17 at 11:25

Active Nov 12 '17 at 14:31

Viewed 222 times

So I am trying to have a Java program that starts running when the main method is invoked and stops running when the same main method is invoked (from another process). So the goal is to kill the first process with the second process, and then kill itself.

What I have tried are the following:

taskkill for Windows and kill for Unix.

This is the simplest way to do achieve the goal. But the process in Windows is always javaw.exe and calling taskkill would terminate other JVMs.
ServerSocket or DatagramSocket, to tell the first process to kill itself.

This works as well but I feel like this is just a waste for such a simple job.
File locks

The problem is that the permission of creating a file is not always granted (for whatever reason someone decides to use the program in read-only folders).

I think I might just missed something obvious. Any suggestions would be appreciated.

edited Jun 20 '20 at 09:12

Community

asked Nov 12 '17 at 11:25

Dabiuteef

Are you trying to achieve restart? – Shineed Basheer Nov 12 '17 at 11:49
@ShineedBasheer No. I am trying to terminates both the running process and the newly spawned process. – Dabiuteef Nov 12 '17 at 12:05
The only safe way is using some sort of communication via files. I would use a special directory in the temp directory as every process should have write permissions here. – Robert Nov 12 '17 at 14:40

Java program that kills itself on new instance

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