8234796: Refactor Handshake::execute to take a more complex type than ThreadClosure

Reviewed-by: dholmes, pliden, coleenp

src/hotspot/share/gc/g1/g1ConcurrentMark.cpp

@@ -55,6 +55,7 @@
 #include "include/jvm.h"
 #include "logging/log.hpp"
 #include "memory/allocation.hpp"
+#include "memory/iterator.hpp"
 #include "memory/resourceArea.hpp"
 #include "memory/universe.hpp"
 #include "oops/access.inline.hpp"

src/hotspot/share/gc/g1/g1ConcurrentMark.hpp

@@ -45,6 +45,7 @@ class G1ConcurrentMark;
 class G1OldTracer;
 class G1RegionToSpaceMapper;
 class G1SurvivorRegions;
+class ThreadClosure;
 
 PRAGMA_DIAG_PUSH
 // warning C4522: multiple assignment operators specified

src/hotspot/share/gc/g1/g1ConcurrentRefine.cpp

@@ -29,6 +29,7 @@
 #include "gc/g1/g1DirtyCardQueue.hpp"
 #include "logging/log.hpp"
 #include "memory/allocation.inline.hpp"
+#include "memory/iterator.hpp"
 #include "runtime/java.hpp"
 #include "runtime/thread.hpp"
 #include "utilities/debug.hpp"

src/hotspot/share/gc/g1/g1DirtyCardQueue.cpp

@@ -34,6 +34,7 @@
 #include "gc/g1/heapRegionRemSet.hpp"
 #include "gc/shared/suspendibleThreadSet.hpp"
 #include "gc/shared/workgroup.hpp"
+#include "memory/iterator.hpp"
 #include "runtime/flags/flagSetting.hpp"
 #include "runtime/mutexLocker.hpp"
 #include "runtime/orderAccess.hpp"

src/hotspot/share/gc/g1/g1RemSetSummary.cpp

@@ -34,6 +34,7 @@
 #include "gc/g1/heapRegion.hpp"
 #include "gc/g1/heapRegionRemSet.hpp"
 #include "memory/allocation.inline.hpp"
+#include "memory/iterator.hpp"
 #include "runtime/thread.inline.hpp"
 
 void G1RemSetSummary::update() {

src/hotspot/share/gc/parallel/parallelScavengeHeap.cpp

@@ -44,6 +44,7 @@
 #include "gc/shared/locationPrinter.inline.hpp"
 #include "gc/shared/scavengableNMethods.hpp"
 #include "logging/log.hpp"
+#include "memory/iterator.hpp"
 #include "memory/metaspaceCounters.hpp"
 #include "memory/universe.hpp"
 #include "oops/oop.inline.hpp"

src/hotspot/share/gc/parallel/psScavenge.cpp

@@ -52,6 +52,7 @@
 #include "gc/shared/weakProcessor.hpp"
 #include "gc/shared/workerPolicy.hpp"
 #include "gc/shared/workgroup.hpp"
+#include "memory/iterator.hpp"
 #include "memory/resourceArea.hpp"
 #include "memory/universe.hpp"
 #include "logging/log.hpp"

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

@@ -55,6 +55,7 @@
 #include "gc/shared/weakProcessor.hpp"
 #include "gc/shared/workgroup.hpp"
 #include "memory/filemap.hpp"
+#include "memory/iterator.hpp"
 #include "memory/metaspaceCounters.hpp"
 #include "memory/resourceArea.hpp"
 #include "memory/universe.hpp"

src/hotspot/share/gc/shared/stringdedup/stringDedup.cpp

@@ -27,6 +27,7 @@
 #include "gc/shared/stringdedup/stringDedupQueue.hpp"
 #include "gc/shared/stringdedup/stringDedupTable.hpp"
 #include "gc/shared/stringdedup/stringDedupThread.hpp"
+#include "memory/iterator.hpp"
 
 bool StringDedup::_enabled = false;
 

src/hotspot/share/gc/shared/stringdedup/stringDedup.hpp

@@ -69,6 +69,8 @@
 #include "memory/allocation.hpp"
 #include "runtime/thread.hpp"
 
+class ThreadClosure;
+
 //
 // Main interface for interacting with string deduplication.
 //

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

@@ -28,6 +28,7 @@
 #include "gc/shared/workerManager.hpp"
 #include "memory/allocation.hpp"
 #include "memory/allocation.inline.hpp"
+#include "memory/iterator.hpp"
 #include "runtime/atomic.hpp"
 #include "runtime/os.hpp"
 #include "runtime/semaphore.hpp"

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

@@ -50,6 +50,7 @@
 
 class AbstractGangWorker;
 class Semaphore;
+class ThreadClosure;
 class WorkGang;
 
 // An abstract task to be worked on by a gang.

src/hotspot/share/gc/shenandoah/shenandoahUnload.cpp

@@ -158,8 +158,9 @@ void ShenandoahUnload::purge() {
   CodeCache::purge_exception_caches();
 }
 
-class ShenandoahUnloadRendezvousClosure : public ThreadClosure {
+class ShenandoahUnloadRendezvousClosure : public HandshakeClosure {
 public:
+  ShenandoahUnloadRendezvousClosure() : HandshakeClosure("ShenandoahUnloadRendezvous") {}
   void do_thread(Thread* thread) {}
 };
 

src/hotspot/share/gc/z/zCollectedHeap.cpp

@@ -33,6 +33,7 @@
 #include "gc/z/zServiceability.hpp"
 #include "gc/z/zStat.hpp"
 #include "gc/z/zUtils.inline.hpp"
+#include "memory/iterator.hpp"
 #include "memory/universe.hpp"
 #include "runtime/mutexLocker.hpp"
 #include "utilities/align.hpp"

src/hotspot/share/gc/z/zHeap.cpp

@@ -326,9 +326,12 @@ void ZHeap::set_soft_reference_policy(bool clear) {
   _reference_processor.set_soft_reference_policy(clear);
 }
 
-class ZRendezvousClosure : public ThreadClosure {
+class ZRendezvousClosure : public HandshakeClosure {
 public:
-  virtual void do_thread(Thread* thread) {}
+  ZRendezvousClosure() :
+      HandshakeClosure("ZRendezvous") {}
+
+  void do_thread(Thread* thread) {}
 };
 
 void ZHeap::process_non_strong_references() {

src/hotspot/share/gc/z/zHeap.hpp

@@ -39,6 +39,8 @@
 #include "gc/z/zUnload.hpp"
 #include "gc/z/zWorkers.hpp"
 
+class ThreadClosure;
+
 class ZHeap {
   friend class VMStructs;
 

src/hotspot/share/gc/z/zMark.cpp

@@ -413,13 +413,14 @@ void ZMark::idle() const {
   os::naked_short_sleep(1);
 }
 
-class ZMarkFlushAndFreeStacksClosure : public ThreadClosure {
+class ZMarkFlushAndFreeStacksClosure : public HandshakeClosure {
 private:
   ZMark* const _mark;
   bool         _flushed;
 
 public:
   ZMarkFlushAndFreeStacksClosure(ZMark* mark) :
+      HandshakeClosure("ZMarkFlushAndFreeStacks"),
       _mark(mark),
       _flushed(false) {}
 

src/hotspot/share/gc/z/zRootsIterator.cpp

@@ -39,6 +39,7 @@
 #include "gc/z/zRootsIterator.hpp"
 #include "gc/z/zStat.hpp"
 #include "gc/z/zThreadLocalData.hpp"
+#include "memory/iterator.hpp"
 #include "memory/resourceArea.hpp"
 #include "memory/universe.hpp"
 #include "prims/jvmtiExport.hpp"

src/hotspot/share/gc/z/zRuntimeWorkers.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -26,6 +26,8 @@
 
 #include "gc/shared/workgroup.hpp"
 
+class ThreadClosure;
+
 class ZRuntimeWorkers {
 private:
   WorkGang _workers;

src/hotspot/share/gc/z/zWorkers.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -27,6 +27,7 @@
 #include "gc/shared/workgroup.hpp"
 #include "memory/allocation.hpp"
 
+class ThreadClosure;
 class ZTask;
 
 class ZWorkers {

src/hotspot/share/jfr/recorder/checkpoint/jfrCheckpointManager.cpp

@@ -42,6 +42,7 @@
 #include "jfr/utilities/jfrTypes.hpp"
 #include "jfr/writers/jfrJavaEventWriter.hpp"
 #include "logging/log.hpp"
+#include "memory/iterator.hpp"
 #include "memory/resourceArea.hpp"
 #include "runtime/handles.inline.hpp"
 #include "runtime/mutex.hpp"

src/hotspot/share/jfr/recorder/checkpoint/types/jfrType.cpp

@@ -40,6 +40,7 @@
 #include "jfr/support/jfrThreadLocal.hpp"
 #include "jfr/writers/jfrJavaEventWriter.hpp"
 #include "jfr/utilities/jfrThreadIterator.hpp"
+#include "memory/iterator.hpp"
 #include "memory/metaspaceGCThresholdUpdater.hpp"
 #include "memory/referenceType.hpp"
 #include "memory/universe.hpp"

src/hotspot/share/jfr/writers/jfrJavaEventWriter.cpp

@@ -32,6 +32,7 @@
 #include "jfr/support/jfrThreadId.hpp"
 #include "jfr/utilities/jfrTypes.hpp"
 #include "jfr/writers/jfrJavaEventWriter.hpp"
+#include "memory/iterator.hpp"
 #include "oops/instanceKlass.hpp"
 #include "oops/oop.inline.hpp"
 #include "runtime/fieldDescriptor.inline.hpp"

src/hotspot/share/memory/iterator.hpp

@@ -37,11 +37,18 @@ class KlassClosure;
 class ClassLoaderData;
 class Symbol;
 class Metadata;
+class Thread;
 
 // The following classes are C++ `closures` for iterating over objects, roots and spaces
 
 class Closure : public StackObj { };
 
+// Thread iterator
+class ThreadClosure: public Closure {
+ public:
+  virtual void do_thread(Thread* thread) = 0;
+};
+
 // OopClosure is used for iterating through references to Java objects.
 class OopClosure : public Closure {
  public:

src/hotspot/share/prims/jvmtiEnvBase.cpp

@@ -27,6 +27,7 @@
 #include "classfile/moduleEntry.hpp"
 #include "classfile/systemDictionary.hpp"
 #include "jvmtifiles/jvmtiEnv.hpp"
+#include "memory/iterator.hpp"
 #include "memory/resourceArea.hpp"
 #include "oops/objArrayKlass.hpp"
 #include "oops/objArrayOop.hpp"

src/hotspot/share/prims/whitebox.cpp

@@ -2011,7 +2011,7 @@ WB_END
 #endif // INCLUDE_CDS
 
 WB_ENTRY(jint, WB_HandshakeWalkStack(JNIEnv* env, jobject wb, jobject thread_handle, jboolean all_threads))
-  class TraceSelfClosure : public ThreadClosure {
+  class TraceSelfClosure : public HandshakeClosure {
     jint _num_threads_completed;
 
     void do_thread(Thread* th) {
@@ -2026,7 +2026,7 @@ WB_ENTRY(jint, WB_HandshakeWalkStack(JNIEnv* env, jobject wb, jobject thread_han
     }
 
   public:
-    TraceSelfClosure() : _num_threads_completed(0) {}
+    TraceSelfClosure() : HandshakeClosure("WB_TraceSelf"), _num_threads_completed(0) {}
 
     jint num_threads_completed() const { return _num_threads_completed; }
   };

src/hotspot/share/runtime/biasedLocking.cpp

@@ -35,6 +35,7 @@
 #include "runtime/basicLock.hpp"
 #include "runtime/biasedLocking.hpp"
 #include "runtime/handles.inline.hpp"
+#include "runtime/handshake.hpp"
 #include "runtime/task.hpp"
 #include "runtime/threadSMR.hpp"
 #include "runtime/vframe.hpp"
@@ -500,7 +501,7 @@ public:
 };
 
 
-class RevokeOneBias : public ThreadClosure {
+class RevokeOneBias : public HandshakeClosure {
 protected:
   Handle _obj;
   JavaThread* _requesting_thread;
@@ -510,7 +511,8 @@ protected:
 
 public:
   RevokeOneBias(Handle obj, JavaThread* requesting_thread, JavaThread* biased_locker)
-    : _obj(obj)
+    : HandshakeClosure("RevokeOneBias")
+    , _obj(obj)
     , _requesting_thread(requesting_thread)
     , _biased_locker(biased_locker)
     , _status_code(BiasedLocking::NOT_BIASED)

src/hotspot/share/runtime/deoptimization.cpp

@@ -805,10 +805,10 @@ JRT_LEAF(BasicType, Deoptimization::unpack_frames(JavaThread* thread, int exec_m
   return bt;
 JRT_END
 
-class DeoptimizeMarkedTC : public ThreadClosure {
+class DeoptimizeMarkedClosure : public HandshakeClosure {
  public:
-  virtual void do_thread(Thread* thread) {
-    assert(thread->is_Java_thread(), "must be");
+  DeoptimizeMarkedClosure() : HandshakeClosure("Deoptimize") {}
+  void do_thread(Thread* thread) {
     JavaThread* jt = (JavaThread*)thread;
     jt->deoptimize_marked_methods();
   }
@@ -819,7 +819,7 @@ void Deoptimization::deoptimize_all_marked() {
   DeoptimizationMarker dm;
 
   if (SafepointSynchronize::is_at_safepoint()) {
-    DeoptimizeMarkedTC deopt;
+    DeoptimizeMarkedClosure deopt;
     // Make the dependent methods not entrant
     CodeCache::make_marked_nmethods_not_entrant();
     Threads::java_threads_do(&deopt);
@@ -829,7 +829,7 @@ void Deoptimization::deoptimize_all_marked() {
       MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
       CodeCache::make_marked_nmethods_not_entrant();
     }
-    DeoptimizeMarkedTC deopt;
+    DeoptimizeMarkedClosure deopt;
     Handshake::execute(&deopt);
   }
 }

src/hotspot/share/runtime/handshake.cpp

@@ -45,10 +45,10 @@ public:
 
 class HandshakeThreadsOperation: public HandshakeOperation {
   static Semaphore _done;
-  ThreadClosure* _thread_cl;
+  HandshakeClosure* _handshake_cl;
   bool _executed;
 public:
-  HandshakeThreadsOperation(ThreadClosure* cl) : _thread_cl(cl), _executed(false) {}
+  HandshakeThreadsOperation(HandshakeClosure* cl) : _handshake_cl(cl), _executed(false) {}
   void do_handshake(JavaThread* thread);
   bool thread_has_completed() { return _done.trywait(); }
   bool executed() const { return _executed; }
@@ -206,15 +206,15 @@ class VM_HandshakeAllThreads: public VM_Handshake {
 };
 
 class VM_HandshakeFallbackOperation : public VM_Operation {
-  ThreadClosure* _thread_cl;
+  HandshakeClosure* _handshake_cl;
   Thread* _target_thread;
   bool _all_threads;
   bool _executed;
 public:
-  VM_HandshakeFallbackOperation(ThreadClosure* cl) :
-      _thread_cl(cl), _target_thread(NULL), _all_threads(true), _executed(false) {}
-  VM_HandshakeFallbackOperation(ThreadClosure* cl, Thread* target) :
-      _thread_cl(cl), _target_thread(target), _all_threads(false), _executed(false) {}
+  VM_HandshakeFallbackOperation(HandshakeClosure* cl) :
+      _handshake_cl(cl), _target_thread(NULL), _all_threads(true), _executed(false) {}
+  VM_HandshakeFallbackOperation(HandshakeClosure* cl, Thread* target) :
+      _handshake_cl(cl), _target_thread(target), _all_threads(false), _executed(false) {}
 
   void doit() {
     log_trace(handshake)("VMThread executing VM_HandshakeFallbackOperation");
@@ -223,7 +223,7 @@ public:
         if (t == _target_thread) {
           _executed = true;
         }
-        _thread_cl->do_thread(t);
+        _handshake_cl->do_thread(t);
       }
     }
   }
@@ -240,7 +240,7 @@ void HandshakeThreadsOperation::do_handshake(JavaThread* thread) {
 
   // Only actually execute the operation for non terminated threads.
   if (!thread->is_terminated()) {
-    _thread_cl->do_thread(thread);
+    _handshake_cl->do_thread(thread);
     _executed = true;
   }
 
@@ -248,7 +248,7 @@ void HandshakeThreadsOperation::do_handshake(JavaThread* thread) {
   _done.signal();
 }
 
-void Handshake::execute(ThreadClosure* thread_cl) {
+void Handshake::execute(HandshakeClosure* thread_cl) {
   if (ThreadLocalHandshakes) {
     HandshakeThreadsOperation cto(thread_cl);
     VM_HandshakeAllThreads handshake(&cto);
@@ -259,7 +259,7 @@ void Handshake::execute(ThreadClosure* thread_cl) {
   }
 }
 
-bool Handshake::execute(ThreadClosure* thread_cl, JavaThread* target) {
+bool Handshake::execute(HandshakeClosure* thread_cl, JavaThread* target) {
   if (ThreadLocalHandshakes) {
     HandshakeThreadsOperation cto(thread_cl);
     VM_HandshakeOneThread handshake(&cto, target);

src/hotspot/share/runtime/handshake.hpp

@@ -26,22 +26,32 @@
 #define SHARE_RUNTIME_HANDSHAKE_HPP
 
 #include "memory/allocation.hpp"
+#include "memory/iterator.hpp"
 #include "runtime/flags/flagSetting.hpp"
 #include "runtime/semaphore.hpp"
 
-class ThreadClosure;
 class JavaThread;
 
-// A handshake operation is a callback that is executed for each JavaThread
+// A handshake closure is a callback that is executed for each JavaThread
 // while that thread is in a safepoint safe state. The callback is executed
 // either by the thread itself or by the VM thread while keeping the thread
 // in a blocked state. A handshake can be performed with a single
 // JavaThread as well.
+class HandshakeClosure : public ThreadClosure {
+  const char* const _name;
+ public:
+  HandshakeClosure(const char* name) : _name(name) {}
+  const char* name() const {
+    return _name;
+  }
+  virtual void do_thread(Thread* thread) = 0;
+};
+
 class Handshake : public AllStatic {
  public:
   // Execution of handshake operation
-  static void execute(ThreadClosure* thread_cl);
-  static bool execute(ThreadClosure* thread_cl, JavaThread* target);
+  static void execute(HandshakeClosure* hs_cl);
+  static bool execute(HandshakeClosure* hs_cl, JavaThread* target);
 };
 
 class HandshakeOperation;

src/hotspot/share/runtime/sweeper.cpp

@@ -197,11 +197,11 @@ bool NMethodSweeper::wait_for_stack_scanning() {
   return _current.end();
 }
 
-class NMethodMarkingThreadClosure : public ThreadClosure {
+class NMethodMarkingClosure : public HandshakeClosure {
 private:
   CodeBlobClosure* _cl;
 public:
-  NMethodMarkingThreadClosure(CodeBlobClosure* cl) : _cl(cl) {}
+  NMethodMarkingClosure(CodeBlobClosure* cl) : HandshakeClosure("NMethodMarking"), _cl(cl) {}
   void do_thread(Thread* thread) {
     if (thread->is_Java_thread() && ! thread->is_Code_cache_sweeper_thread()) {
       JavaThread* jt = (JavaThread*) thread;
@@ -212,9 +212,9 @@ public:
 
 class NMethodMarkingTask : public AbstractGangTask {
 private:
-  NMethodMarkingThreadClosure* _cl;
+  NMethodMarkingClosure* _cl;
 public:
-  NMethodMarkingTask(NMethodMarkingThreadClosure* cl) :
+  NMethodMarkingTask(NMethodMarkingClosure* cl) :
     AbstractGangTask("Parallel NMethod Marking"),
     _cl(cl) {
     Threads::change_thread_claim_token();
@@ -239,7 +239,7 @@ void NMethodSweeper::mark_active_nmethods() {
   if (cl != NULL) {
     WorkGang* workers = Universe::heap()->get_safepoint_workers();
     if (workers != NULL) {
-      NMethodMarkingThreadClosure tcl(cl);
+      NMethodMarkingClosure tcl(cl);
       NMethodMarkingTask task(&tcl);
       workers->run_task(&task);
     } else {
@@ -324,8 +324,8 @@ void NMethodSweeper::do_stack_scanning() {
         code_cl = prepare_mark_active_nmethods();
       }
       if (code_cl != NULL) {
-        NMethodMarkingThreadClosure tcl(code_cl);
-        Handshake::execute(&tcl);
+        NMethodMarkingClosure nm_cl(code_cl);
+        Handshake::execute(&nm_cl);
       }
     } else {
       VM_MarkActiveNMethods op;

src/hotspot/share/runtime/thread.cpp

@@ -47,6 +47,7 @@
 #include "logging/logConfiguration.hpp"
 #include "logging/logStream.hpp"
 #include "memory/allocation.inline.hpp"
+#include "memory/iterator.hpp"
 #include "memory/metaspaceShared.hpp"
 #include "memory/oopFactory.hpp"
 #include "memory/resourceArea.hpp"

src/hotspot/share/runtime/thread.hpp

@@ -2286,13 +2286,6 @@ class Threads: AllStatic {
   struct Test;                  // For private gtest access.
 };
 
-
-// Thread iterator
-class ThreadClosure: public StackObj {
- public:
-  virtual void do_thread(Thread* thread) = 0;
-};
-
 class SignalHandlerMark: public StackObj {
  private:
   Thread* _thread;

src/hotspot/share/runtime/threadSMR.inline.hpp

@@ -26,6 +26,7 @@
 #define SHARE_RUNTIME_THREADSMR_INLINE_HPP
 
 #include "runtime/atomic.hpp"
+#include "memory/iterator.hpp"
 #include "runtime/prefetch.inline.hpp"
 #include "runtime/thread.inline.hpp"
 #include "runtime/threadSMR.hpp"

src/hotspot/share/runtime/vmThread.cpp

@@ -413,9 +413,10 @@ void VMThread::evaluate_operation(VM_Operation* op) {
 static VM_None    safepointALot_op("SafepointALot");
 static VM_Cleanup cleanup_op;
 
-class HandshakeALotTC : public ThreadClosure {
+class HandshakeALotClosure : public HandshakeClosure {
  public:
-  virtual void do_thread(Thread* thread) {
+  HandshakeALotClosure() : HandshakeClosure("HandshakeALot") {}
+  void do_thread(Thread* thread) {
 #ifdef ASSERT
     assert(thread->is_Java_thread(), "must be");
     JavaThread* jt = (JavaThread*)thread;
@@ -432,8 +433,8 @@ void VMThread::check_for_forced_cleanup() {
 VM_Operation* VMThread::no_op_safepoint() {
   // Check for handshakes first since we may need to return a VMop.
   if (HandshakeALot) {
-    HandshakeALotTC haltc;
-    Handshake::execute(&haltc);
+    HandshakeALotClosure hal_cl;
+    Handshake::execute(&hal_cl);
   }
   // Check for a cleanup before SafepointALot to keep stats correct.
   long interval_ms = SafepointTracing::time_since_last_safepoint_ms();

src/hotspot/share/utilities/globalCounter.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -23,11 +23,12 @@
  */
 
 #include "precompiled.hpp"
-#include "utilities/globalCounter.hpp"
+#include "memory/iterator.hpp"
 #include "runtime/atomic.hpp"
 #include "runtime/thread.hpp"
 #include "runtime/threadSMR.inline.hpp"
 #include "runtime/vmThread.hpp"
+#include "utilities/globalCounter.hpp"
 #include "utilities/spinYield.hpp"
 
 GlobalCounter::PaddedCounter GlobalCounter::_global_counter;