How should I stop the forked VM?

[Aleksey Shipilev]

Hi Behrooz,

On 01/13/2015 11:20 AM, Behrooz Nobakht wrote:
> Thanks for your reply. Hope this helps:
> https://github.com/nobeh/jmh-forked-main-threads

Thanks for the repoducer!

I still believe this is a library bug to have stray non-daemon threads
floating around like that. That means any user would have to use
System.exit() to terminate the application, which is smelly smelly smell
that smells a lot.

Nevertheless, JMH can do a little better:
 https://bugs.openjdk.java.net/browse/CODETOOLS-7901244
 http://hg.openjdk.java.net/code-tools/jmh/rev/d15ebde32b25

It will now wait for the forked VM to exit properly on its own, and
forcefully terminate the VM if the shutdown timeout is reached. The
timeout is now at 30 seconds. If you want to have a better turnaround
for these benchmarks, submit the upstream bug and demand the library to
stop using the non-daemon threads.

Thanks,
-Aleksey.