--- old/agent/src/share/classes/sun/jvm/hotspot/interpreter/BytecodeWithCPIndex.java	Fri Jul  8 15:22:36 2011
+++ new/agent/src/share/classes/sun/jvm/hotspot/interpreter/BytecodeWithCPIndex.java	Fri Jul  8 15:22:36 2011
@@ -35,7 +35,7 @@
   }
 
   // the constant pool index for this bytecode
-  public int index() { return 0xFFFF & javaShortAt(1); }
+  public int index() { return getIndexU2(code(), false); }
 
   public int getSecondaryIndex() {
      throw new IllegalArgumentException("must be invokedynamic");