How can I set the process name for a Java-program? [duplicate]

Answer 1

You can do this with an LD_PRELOAD shim: https://github.com/airlift/procname

The shim simply calls the Linux-specific prctl() when the process starts:

static void __attribute__ ((constructor)) procname_init()
{
   prctl(PR_SET_NAME, "myname");
}

The call has to happen on the main thread, so it isn't possible to do this from Java or even with a JVMTI agent, since those happen on a different thread.

Answer 2

If you want to use a different process name you'll have to create your own binary to launch your Java application using something like JSmooth.

Look at this question for a discussion of creating such binaries.