[11u] RFR 8217765: Internal Error (javaCalls.cpp:61) guarantee(thread->can_call_java()) failed

[Aleksey Shipilev]

Please review the backport to 11u. It was backported to 12u and 11u-oracle.

Original bug:
  https://bugs.openjdk.java.net/browse/JDK-8217765

Original fix:
  http://hg.openjdk.java.net/jdk/jdk/rev/81a9748bc86c

12u backport:
  http://hg.openjdk.java.net/jdk-updates/jdk12u/rev/604112e45466

11u backport (in this review):
  http://cr.openjdk.java.net/~shade/8217765/webrev.11u.01/

Testing: hotspot tier1

Thanks,
-Aleksey