Highlights: 8212186: JVMTI lacks a few GC barriers/hooks 8212603: Need to step over GC barriers in Node::eqv_uncast() 8212611: Small collection of simple changes from shenandoah Applied cleanly. Testing: tier3_gc_shenandoah http://cr.openjdk.java.net/~rkennke/upstream-jdk12-merge-2018-10-25/outgoing.txt Good?