*** old/src/share/vm/runtime/os.hpp	Thu Jan 19 13:26:21 2012
--- new/src/share/vm/runtime/os.hpp	Thu Jan 19 13:26:17 2012

*** 71,82 ****
--- 71,83 ----
  enum ThreadPriority {        // JLS 20.20.1-3
    NoPriority       = -1,     // Initial non-priority value
    MinPriority      =  1,     // Minimum priority
    NormPriority     =  5,     // Normal (non-daemon) priority
    NearMaxPriority  =  9,     // High priority, used for VMThread
!   MaxPriority      = 10      // Highest priority, used for WatcherThread
!   MaxPriority      = 10,     // Highest priority, used for WatcherThread
                               // ensures that VMThread doesn't starve profiler
+   CriticalPriority = 11      // Critical thread priority
  };
  
  // Typedef for structured exception handling support
  typedef void (*java_call_t)(JavaValue* value, methodHandle* method, JavaCallArguments* args, Thread* thread);
  

*** 731,741 ****
--- 732,742 ----
    static void print_statistics();
  
    // Thread priority helpers (implemented in OS-specific part)
    static OSReturn set_native_priority(Thread* thread, int native_prio);
    static OSReturn get_native_priority(const Thread* const thread, int* priority_ptr);
!   static int java_to_os_priority[MaxPriority + 1];
!   static int java_to_os_priority[CriticalPriority + 1];
    // Hint to the underlying OS that a task switch would not be good.
    // Void return because it's a hint and can fail.
    static void hint_no_preempt();
  
    // Used at creation if requested by the diagnostic flag PauseAtStartup.