Fix child jvms hanging around after job finishes
Fix child jvms hanging around after job finishes

etsy/statsd-jvm-profiler,jasonchaffee/statsd-jvm-profiler,jasonchaffee/statsd-jvm-profiler,danosipov/statsd-jvm-profiler,danosipov/statsd-jvm-profiler,etsy/statsd-jvm-profiler,etsy/statsd-jvm-profiler,irudyak/statsd-jvm-profiler,danosipov/statsd-jvm-profiler,jasonchaffee/statsd-jvm-profiler,etsy/statsd-jvm-profiler,jasonchaffee/statsd-jvm-profiler,irudyak/statsd-jvm-profiler,danosipov/statsd-jvm-profiler,irudyak/statsd-jvm-profiler,irudyak/statsd-jvm-profiler,etsy/statsd-jvm-profiler