--- old/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/runtime/Threads.java	2016-08-08 20:25:15.503491784 -0400
+++ new/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/runtime/Threads.java	2016-08-08 20:25:15.403491288 -0400
@@ -129,8 +129,6 @@
             virtualConstructor.addMapping("CompilerThread", CompilerThread.class);
             virtualConstructor.addMapping("CodeCacheSweeperThread", CodeCacheSweeperThread.class);
         }
-        // for now, use JavaThread itself. fix it later with appropriate class if needed
-        virtualConstructor.addMapping("ReferencePendingListLockerThread", JavaThread.class);
         virtualConstructor.addMapping("JvmtiAgentThread", JvmtiAgentThread.class);
         virtualConstructor.addMapping("ServiceThread", ServiceThread.class);
     }
@@ -172,7 +170,7 @@
             return thread;
         } catch (Exception e) {
             throw new RuntimeException("Unable to deduce type of thread from address " + threadAddr +
-            " (expected type JavaThread, CompilerThread, ServiceThread, JvmtiAgentThread, ReferencePendingListLockerThread, or CodeCacheSweeperThread)", e);
+            " (expected type JavaThread, CompilerThread, ServiceThread, JvmtiAgentThread or CodeCacheSweeperThread)", e);
         }
     }