agent/src/share/classes/sun/jvm/hotspot/utilities/Hashtable.java

*** 59,71 ****
    // VM's Hashtable::hash_symbol
    protected static long hashSymbol(byte[] buf) {
      long h = 0;
      int s = 0;
      int len = buf.length;
-     // Emulate the unsigned int in java_lang_String::hash_code
      while (len-- > 0) {
!       h = 31*h + (0xFFFFFFFFL & buf[s]);
        s++;
      }
      return h & 0xFFFFFFFFL;
    }
  }
--- 59,70 ----
    // VM's Hashtable::hash_symbol
    protected static long hashSymbol(byte[] buf) {
      long h = 0;
      int s = 0;
      int len = buf.length;
      while (len-- > 0) {
!       h = 31*h + (0xFFL & buf[s]);
        s++;
      }
      return h & 0xFFFFFFFFL;
    }
  }