--- old/test/lib/sun/hotspot/WhiteBox.java	2018-09-13 17:20:59.408694590 -0400
+++ new/test/lib/sun/hotspot/WhiteBox.java	2018-09-13 17:20:59.156694600 -0400
@@ -103,6 +103,7 @@
     return isClassAlive0(name.replace('.', '/'));
   }
   private native boolean isClassAlive0(String name);
+  public  native int getSymbolRefcount(String name);
 
   private native boolean isMonitorInflated0(Object obj);
   public         boolean isMonitorInflated(Object obj) {