RFR (S) 8224151: Test vmTestbase/nsk/sysdict/vm/stress/chain/chain007/chain007.java might hang with release binaries

[Thomas Schatzl]

Hi,

On Wed, 2019-06-05 at 21:53 -0400, coleen.phillimore at oracle.com wrote:
> Summary: Fix deadlock on ClassLoaderDataGraph_lock and g1 
> clear_claimed_marks.
> 
> Thank you to Stefan for finding the deadlock and Thomas for
> suggestions 
> on the fix, plus text for comments.
> 
> Tested with this test 100s of times, tier1-3 and tier6 almost
> complete.
> 
> open webrev at 
> http://cr.openjdk.java.net/~coleenp/2019/8224151.01/webrev
> bug link https://bugs.openjdk.java.net/browse/JDK-8224151
> 

  looks good.

Maybe in the big comment, also add comment delimitiers between the
paragraphs of the text. Do not need to re-review that change.

Thanks,
  Thomas