RFR : JDK-8151797 - java/lang/management/ThreadMXBean/ThreadLists.java : inconsistent results

[Staffan Larsen]

You should move the Arrays.stream trigger call to before the ManagementFactory.getThreadMXBean, otherwise the threads you get from ThreadMXBean will not match the threads you get from the ThreadGroups.

> On 18 mars 2016, at 12:17, Harsha Wardhana B <harsha.wardhana.b at oracle.com> wrote:
> 
> Hello All,
> 
> Please review fix for,
> 
> Issue : JDK-8151797 <http://jdk-8151797/> -  java/lang/management/ThreadMXBean/ThreadLists.java : inconsistent results
> Webrev : http://cr.openjdk.java.net/~hb/8151797/webrev.00/ <http://cr.openjdk.java.net/%7Ehb/8151797/webrev.00/>
> 
> Root-cause :  call-site cleaner thread not started before counting threads via Thread.getAllStackTraces();. 
> Fix : Create ThreadMXBean at the beginning of test so that call-site cleaner thread will be started. 
> 
> Thanks
> Harsha
> 

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