code: public void reset(){
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.entry(this, tc, "reset");
      streamIndex = 0;
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.exit(this, tc, "reset");
    }
docs: /*
  Repositions the stream pointer to the beginning of the stream.
  This method does not set the message into 'read-only' mode as the MFP
  component has no knowledge of the readability/writeability of a message.
  The JMS API component will set and police readable/writeable state.
  
  Javadoc description supplied by JsJmsMessage interface.