8369440: Remove RootResolverMarkScope and RootSetClosureMarkScope

Reviewed-by: ayang

Author: fandreuz

src/hotspot/share/gc/serial/defNewGeneration.cpp

@@ -45,7 +45,6 @@
 #include "gc/shared/scavengableNMethods.hpp"
 #include "gc/shared/space.hpp"
 #include "gc/shared/spaceDecorator.hpp"
-#include "gc/shared/strongRootsScope.hpp"
 #include "gc/shared/weakProcessor.hpp"
 #include "logging/log.hpp"
 #include "memory/iterator.inline.hpp"

src/hotspot/share/gc/serial/serialHeap.cpp

@@ -56,7 +56,6 @@
 #include "gc/shared/oopStorageSet.inline.hpp"
 #include "gc/shared/scavengableNMethods.hpp"
 #include "gc/shared/space.hpp"
-#include "gc/shared/strongRootsScope.hpp"
 #include "gc/shared/suspendibleThreadSet.hpp"
 #include "gc/shared/weakProcessor.hpp"
 #include "gc/shared/workerThread.hpp"

src/hotspot/share/gc/shared/strongRootsScope.cpp

@@ -26,7 +26,6 @@
 #include "classfile/stringTable.hpp"
 #include "gc/shared/oopStorage.inline.hpp"
 #include "gc/shared/oopStorageSet.inline.hpp"
-#include "gc/shared/strongRootsScope.hpp"
 #include "jfr/leakprofiler/chains/bfsClosure.hpp"
 #include "jfr/leakprofiler/chains/dfsClosure.hpp"
 #include "jfr/leakprofiler/chains/edgeQueue.hpp"
@@ -61,8 +60,6 @@ void RootSetClosure<Delegate>::do_oop(narrowOop* ref) {
   }
 }
 
-class RootSetClosureMarkScope : public MarkScope {};
-
 template <typename Delegate>
 class RawRootClosure : public OopClosure {
   Delegate* _delegate;
@@ -89,8 +86,6 @@ class RawRootClosure : public OopClosure {
 
 template <typename Delegate>
 void RootSetClosure<Delegate>::process() {
-  RootSetClosureMarkScope mark_scope;
-
   CLDToOopClosure cldt_closure(this, ClassLoaderData::_claim_none);
   ClassLoaderDataGraph::always_strong_cld_do(&cldt_closure);
 

src/hotspot/share/gc/shared/strongRootsScope.hpp

@@ -26,7 +26,6 @@
 #include "classfile/stringTable.hpp"
 #include "gc/shared/oopStorage.inline.hpp"
 #include "gc/shared/oopStorageSet.hpp"
-#include "gc/shared/strongRootsScope.hpp"
 #include "jfr/leakprofiler/checkpoint/rootResolver.hpp"
 #include "jfr/leakprofiler/utilities/unifiedOopRef.inline.hpp"
 #include "jfr/utilities/jfrThreadIterator.hpp"
@@ -325,12 +324,7 @@ bool ReferenceToThreadRootClosure::do_thread_roots(JavaThread* jt) {
   return false;
 }
 
-class RootResolverMarkScope : public MarkScope {
-};
-
 void RootResolver::resolve(RootCallback& callback) {
-  RootResolverMarkScope mark_scope;
-
   // thread local roots
   ReferenceToThreadRootClosure rtrc(callback);
   if (rtrc.complete()) {