*** old/src/share/vm/runtime/mutexLocker.hpp	Wed Nov  5 19:24:02 2014
--- new/src/share/vm/runtime/mutexLocker.hpp	Wed Nov  5 19:24:02 2014

*** 89,98 ****
--- 89,99 ----
  extern Mutex*   ParGCRareEvent_lock;             // Synchronizes various (rare) parallel GC ops.
  extern Mutex*   EvacFailureStack_lock;           // guards the evac failure scan stack
  extern Mutex*   Compile_lock;                    // a lock held when Compilation is updating code (used to block CodeCache traversal, CHA updates, etc)
  extern Monitor* MethodCompileQueue_lock;         // a lock held when method compilations are enqueued, dequeued
  extern Monitor* CompileThread_lock;              // a lock held by compile threads during compilation system initialization
+ extern Monitor* Compilation_lock;                // a lock used to pause compilation
  extern Mutex*   CompileTaskAlloc_lock;           // a lock held when CompileTasks are allocated
  extern Mutex*   CompileStatistics_lock;          // a lock held when updating compilation statistics
  extern Mutex*   MultiArray_lock;                 // a lock used to guard allocation of multi-dim arrays
  extern Monitor* Terminator_lock;                 // a lock used to guard termination of the vm
  extern Monitor* BeforeExit_lock;                 // a lock used to guard cleanups and shutdown hooks