hg: jdk8u/hs-dev/hotspot: 8049599: MetaspaceGC::_capacity_until_GC can overflow

[erik.helin at oracle.com]

Changeset: b509b7ff561c
Author:    ehelin
Date:      2014-10-01 16:09 +0200
URL:       http://hg.openjdk.java.net/jdk8u/hs-dev/hotspot/rev/b509b7ff561c

8049599: MetaspaceGC::_capacity_until_GC can overflow
Reviewed-by: jmasa, stefank

! src/share/vm/memory/metaspace.cpp
! src/share/vm/memory/metaspace.hpp
! src/share/vm/prims/whitebox.cpp
+ test/gc/metaspace/TestCapacityUntilGCWrapAround.java
! test/testlibrary/whitebox/sun/hotspot/WhiteBox.java