hg: shenandoah/jdk9/hotspot: Execute waiting VM tasks in Java thread that sends JNI critical notification. Otherwise it doesn't reach safepoint and blocks

[roman at kennke.org]

Changeset: 2dd80aa72d23
Author:    rkennke
Date:      2016-02-05 12:30 +0100
URL:       http://hg.openjdk.java.net/shenandoah/jdk9/hotspot/rev/2dd80aa72d23

Execute waiting VM tasks in Java thread that sends JNI critical notification. Otherwise it doesn't reach safepoint and blocks

! src/share/vm/gc/shenandoah/shenandoahJNICritical.cpp