Summary: move to safepoint cleanup actions to do if needed.
This is in support of concurrent class unloading. See bug description
for more details.
open webrev at http://cr.openjdk.java.net/~coleenp/8208677.01/webrev
bug link https://bugs.openjdk.java.net/browse/JDK-8208677
Ran mach5 hs-tier1-5, with no failures on Friday. hs-tier1,2 with
expected failures today.
The test/hotspot/jtreg/runtime/RedefineRunningMethods.java and
RedefineLeak.java test this code. Fixed and verified with logging in
the first test.
thanks,
Coleen
