--- a/hotspot/src/share/vm/runtime/os.hpp	Tue Jun 27 12:27:27 2017 +0000
+++ b/hotspot/src/share/vm/runtime/os.hpp	Wed Jun 28 16:14:20 2017 -0400
@@ -743,8 +743,8 @@
   static int   sigexitnum_pd();
 
   // random number generation
-  static long random();                    // return 32bit pseudorandom number
-  static void init_random(long initval);   // initialize random sequence
+  static int random();                     // return 32bit pseudorandom number
+  static void init_random(unsigned int initval);    // initialize random sequence
 
   // Structured OS Exception support
   static void os_exception_wrapper(java_call_t f, JavaValue* value, const methodHandle& method, JavaCallArguments* args, Thread* thread);
@@ -956,7 +956,7 @@
 
 
  protected:
-  static long _rand_seed;                     // seed for random number generator
+  static volatile unsigned int _rand_seed;    // seed for random number generator
   static int _processor_count;                // number of processors
   static int _initial_active_processor_count; // number of active processors during initialization.