--- a/src/share/vm/prims/jvmtiEnv.cpp	Tue Nov 19 17:44:26 2013 +0100
+++ b/src/share/vm/prims/jvmtiEnv.cpp	Wed Nov 20 00:10:38 2013 +0100
@@ -259,8 +259,7 @@
       // bytes to the InstanceKlass here because they have not been
       // validated and we're not at a safepoint.
       constantPoolHandle  constants(current_thread, ikh->constants());
-      oop cplock = constants->lock();
-      ObjectLocker ol(cplock, current_thread, cplock != NULL);    // lock constant pool while we query it
+      MonitorLockerEx ml(constants->lock());    // lock constant pool while we query it
 
       JvmtiClassFileReconstituter reconstituter(ikh);
       if (reconstituter.get_error() != JVMTI_ERROR_NONE) {
@@ -2418,8 +2417,7 @@
 
   instanceKlassHandle ikh(thread, k_oop);
   constantPoolHandle  constants(thread, ikh->constants());
-  oop cplock = constants->lock();
-  ObjectLocker ol(cplock, thread, cplock != NULL);    // lock constant pool while we query it
+  MonitorLockerEx ml(constants->lock());    // lock constant pool while we query it
 
   JvmtiConstantPoolReconstituter reconstituter(ikh);
   if (reconstituter.get_error() != JVMTI_ERROR_NONE) {