elasticsearch/elasticsearch — pull request #4777 by s1monw (2014-01-17 09:45:43+00:00)
Title: Check ThreadInfo[] for null element if thread are not alive.

If a thread is not alive getting ThreadMXBean#getThreadInfo(long[], int)
places null elemnents in the returned array which are not repected
in the HotTheards API.

Closes #4775