code: @Override
      public long getDeliveryDelay() throws JMSException {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.entry(this, tc, "getDeliveryDelay");
          checkClosed();
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.exit(this, tc, "getDeliveryDelay", defaultDeliveryDelay);
          return this.defaultDeliveryDelay;
      }
docs: /*
  (non-Javadoc)
  
  @see javax.jms.MessageProducer#getDeliveryDelay()