*** old/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/memory/Dictionary.java	Mon Oct 31 17:46:23 2016
--- new/src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/memory/Dictionary.java	Mon Oct 31 17:46:23 2016

*** 100,105 ****
--- 100,118 ----
          return entry;
        }
      }
      return null;
    }
+ 
+   public boolean contains(Klass c, Oop classLoader) {
+     long hash = computeHash(c.getName(), classLoader);
+     int index = hashToIndex(hash);
+ 
+     for (DictionaryEntry entry = (DictionaryEntry) bucket(index); entry != null;
+                                     entry = (DictionaryEntry) entry.next()) {
+       if (entry.literalValue().equals(c.getAddress())) {
+         return true;
+       }
+     }
+     return false;
+   }
  }