--- a/src/hotspot/share/gc/parallel/pcTasks.cpp	Fri Aug 16 09:18:19 2019 +0200
+++ b/src/hotspot/share/gc/parallel/pcTasks.cpp	Fri Aug 16 09:18:23 2019 +0200
@@ -48,116 +48,6 @@
 #include "utilities/stack.inline.hpp"
 
 //
-// ThreadRootsMarkingTask
-//
-
-void ThreadRootsMarkingTask::do_it(GCTaskManager* manager, uint which) {
-  assert(ParallelScavengeHeap::heap()->is_gc_active(), "called outside gc");
-
-  ResourceMark rm;
-
-  ParCompactionManager* cm =
-    ParCompactionManager::gc_thread_compaction_manager(which);
-
-  PCMarkAndPushClosure mark_and_push_closure(cm);
-  MarkingCodeBlobClosure mark_and_push_in_blobs(&mark_and_push_closure, !CodeBlobToOopClosure::FixRelocations);
-
-  _thread->oops_do(&mark_and_push_closure, &mark_and_push_in_blobs);
-
-  // Do the real work
-  cm->follow_marking_stacks();
-}
-
-
-void MarkFromRootsTask::do_it(GCTaskManager* manager, uint which) {
-  assert(ParallelScavengeHeap::heap()->is_gc_active(), "called outside gc");
-
-  ParCompactionManager* cm =
-    ParCompactionManager::gc_thread_compaction_manager(which);
-  PCMarkAndPushClosure mark_and_push_closure(cm);
-
-  switch (_root_type) {
-    case universe:
-      Universe::oops_do(&mark_and_push_closure);
-      break;
-
-    case jni_handles:
-      JNIHandles::oops_do(&mark_and_push_closure);
-      break;
-
-    case threads:
-    {
-      ResourceMark rm;
-      MarkingCodeBlobClosure each_active_code_blob(&mark_and_push_closure, !CodeBlobToOopClosure::FixRelocations);
-      Threads::oops_do(&mark_and_push_closure, &each_active_code_blob);
-    }
-    break;
-
-    case object_synchronizer:
-      ObjectSynchronizer::oops_do(&mark_and_push_closure);
-      break;
-
-    case management:
-      Management::oops_do(&mark_and_push_closure);
-      break;
-
-    case jvmti:
-      JvmtiExport::oops_do(&mark_and_push_closure);
-      break;
-
-    case system_dictionary:
-      SystemDictionary::oops_do(&mark_and_push_closure);
-      break;
-
-    case class_loader_data: {
-        CLDToOopClosure cld_closure(&mark_and_push_closure, ClassLoaderData::_claim_strong);
-        ClassLoaderDataGraph::always_strong_cld_do(&cld_closure);
-      }
-      break;
-
-    case code_cache:
-      // Do not treat nmethods as strong roots for mark/sweep, since we can unload them.
-      //ScavengableNMethods::scavengable_nmethods_do(CodeBlobToOopClosure(&mark_and_push_closure));
-      AOTLoader::oops_do(&mark_and_push_closure);
-      break;
-
-    default:
-      fatal("Unknown root type");
-  }
-
-  // Do the real work
-  cm->follow_marking_stacks();
-}
-
-
-//
-// StealMarkingTask
-//
-
-StealMarkingTask::StealMarkingTask(ParallelTaskTerminator* t) :
-  _terminator(t) {}
-
-void StealMarkingTask::do_it(GCTaskManager* manager, uint which) {
-  assert(ParallelScavengeHeap::heap()->is_gc_active(), "called outside gc");
-
-  ParCompactionManager* cm =
-    ParCompactionManager::gc_thread_compaction_manager(which);
-
-  oop obj = NULL;
-  ObjArrayTask task;
-  do {
-    while (ParCompactionManager::steal_objarray(which,  task)) {
-      cm->follow_array((objArrayOop)task.obj(), task.index());
-      cm->follow_marking_stacks();
-    }
-    while (ParCompactionManager::steal(which, obj)) {
-      cm->follow_contents(obj);
-      cm->follow_marking_stacks();
-    }
-  } while (!terminator()->offer_termination());
-}
-
-//
 // CompactionWithStealingTask
 //