hg: jdk/jdk: 8206424: Use locking for cleaning ProtectionDomainTable

[coleen.phillimore at oracle.com]

Changeset: cdef4df6b0e7
Author:    pchilanomate
Date:      2018-08-31 10:22 -0400
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/cdef4df6b0e7

8206424: Use locking for cleaning ProtectionDomainTable
Summary: ServiceThread is now in charge of cleaning ProtectionDomainTable entries
Reviewed-by: coleenp, iklam

! src/hotspot/share/classfile/protectionDomainCache.cpp
! src/hotspot/share/classfile/protectionDomainCache.hpp
! src/hotspot/share/classfile/systemDictionary.cpp
! src/hotspot/share/classfile/systemDictionary.hpp
! src/hotspot/share/prims/whitebox.cpp
! src/hotspot/share/runtime/serviceThread.cpp
+ test/hotspot/jtreg/runtime/Dictionary/CleanProtectionDomain.java
! test/lib/sun/hotspot/WhiteBox.java