hg: shenandoah/jdk8u/hotspot: Handle Java heap initialization and expansion failures

[zgu at redhat.com]

Changeset: 7b9cc29ae9e2
Author:    zgu
Date:      2017-08-11 07:25 -0400
URL:       http://hg.openjdk.java.net/shenandoah/jdk8u/hotspot/rev/7b9cc29ae9e2

Handle Java heap initialization and expansion failures

! src/share/vm/gc_implementation/shenandoah/shenandoahHeap.cpp
! src/share/vm/gc_implementation/shenandoah/shenandoahHeap.hpp
! src/share/vm/gc_implementation/shenandoah/shenandoah_globals.hpp
+ test/gc/shenandoah/TestHeapAlloc.java