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src/hotspot/os/windows/os_windows.hpp

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@@ -185,38 +185,22 @@
       guarantee (_ParkEvent != NULL, "invariant") ;
     }
 
 } ;
 
-// Platform specific implementations that underpin VM Mutex/Monitor classes
-
-class PlatformMutex : public CHeapObj<mtSynchronizer> {
-  // Disable copying
-  PlatformMutex(const PlatformMutex&);
-  PlatformMutex& operator=(const PlatformMutex&);
-
- protected:
-  CRITICAL_SECTION   _mutex; // Native mutex for locking
-
- public:
-  PlatformMutex();
-  ~PlatformMutex();
-  void lock();
-  void unlock();
-  bool try_lock();
-};
-
-class PlatformMonitor : public PlatformMutex {
+// Platform specific implementation that underpins VM Monitor/Mutex class
+class PlatformMonitor : public CHeapObj<mtSynchronizer> {
  private:
+  CRITICAL_SECTION   _mutex; // Native mutex for locking
   CONDITION_VARIABLE _cond;  // Native condition variable for blocking
-  // Disable copying
-  PlatformMonitor(const PlatformMonitor&);
-  PlatformMonitor& operator=(const PlatformMonitor&);
 
  public:
   PlatformMonitor();
   ~PlatformMonitor();
+  void lock();
+  void unlock();
+  bool try_lock();
   int wait(jlong millis);
   void notify();
   void notify_all();
 };
 
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