[12u] RFR (XXS): 8218880: G1 crashes when issuing a periodic GC while the GCLocker is held

[Thomas Schatzl]

Hi all,

  I would like to ask for reviews for the change for

8218880: G1 crashes when issuing a periodic GC while the GCLocker is
held

to backport to 12u. It does not apply cleanly due to some merge error
in the copyright headers.

CR:
https://bugs.openjdk.java.net/browse/JDK-8218880
Webrev:
http://hg.openjdk.java.net/jdk/jdk/rev/7935353a466a (jdk/jdk push)
http://cr.openjdk.java.net/~tschatzl/8218880/webrev.12u.0_to_1/ (diff
from jdk/jdk version)
http://cr.openjdk.java.net/~tschatzl/8218880/webrev.12u/ (full)
Testing:
compilation; hs-tier1-5 almost completed

thanks,
  Thomas