hg: jdk/jdk: 8234433: TestUnloadEventClassCount fails with "assert(SafepointSynchronize::is_at_safepoint()) failed: invariant"

[markus.gronlund at oracle.com]

Changeset: 6a897a8ef4af
Author:    mgronlun
Date:      2019-11-25 11:08 +0100
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/6a897a8ef4af

8234433: TestUnloadEventClassCount fails with "assert(SafepointSynchronize::is_at_safepoint()) failed: invariant"
Reviewed-by: pliden

! src/hotspot/share/jfr/jni/jfrGetAllEventClasses.cpp