*** old/src/share/vm/prims/whitebox.cpp	Mon Mar 24 21:53:35 2014
--- new/src/share/vm/prims/whitebox.cpp	Mon Mar 24 21:53:35 2014

*** 508,517 ****
--- 508,539 ----
    CHECK_JNI_EXCEPTION_(env, NULL);
  
    return features_string;
  WB_END
  
+ 
+ WB_ENTRY(jbyteArray, WB_GetNMethod(JNIEnv* env, jobject o, jobject method, jboolean is_osr))
+   jmethodID jmid = reflected_method_to_jmid(thread, env, method);
+   CHECK_JNI_EXCEPTION_(env, NULL);
+   methodHandle mh(THREAD, Method::checked_resolve_jmethod_id(jmid));
+   nmethod* code = is_osr ? mh->lookup_osr_nmethod_for(InvocationEntryBci, CompLevel_none, false) : mh->code();
+   jbyteArray result = NULL;
+   if (code == NULL) {
+     return result;
+   }
+   address code_data = code->insts_begin();
+   int code_size = code->insts_size();
+ 
+   ThreadToNativeFromVM ttn(thread);
+   result = env->NewByteArray(code_size);
+   if (result != NULL) {
+     env->SetByteArrayRegion(result, 0, code_size, (jbyte*) code_data);
+   }
+   return result;
+ WB_END
+ 
+ 
  //Some convenience methods to deal with objects from java
  int WhiteBox::offset_for_field(const char* field_name, oop object,
      Symbol* signature_symbol) {
    assert(field_name != NULL && strlen(field_name) > 0, "Field name not valid");
    Thread* THREAD = Thread::current();

*** 620,629 ****
--- 642,653 ----
        CC"(Ljava/lang/reflect/Executable;)V",          (void*)&WB_ClearMethodState},
    {CC"isInStringTable",   CC"(Ljava/lang/String;)Z",  (void*)&WB_IsInStringTable  },
    {CC"fullGC",   CC"()V",                             (void*)&WB_FullGC },
    {CC"readReservedMemory", CC"()V",                   (void*)&WB_ReadReservedMemory },
    {CC"getCPUFeatures",     CC"()Ljava/lang/String;",  (void*)&WB_GetCPUFeatures     },
+   {CC"getNMethod",         CC"(Ljava/lang/reflect/Executable;Z)[B",
+                                                       (void*)&WB_GetNMethod         },
  };
  
  #undef CC
  
  JVM_ENTRY(void, JVM_RegisterWhiteBoxMethods(JNIEnv* env, jclass wbclass))