code: public boolean close(int closedReason, SIBUuid8 qpoint)
    {
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
        SibTr.entry(tc, "close", 
            new Object[] { Integer.valueOf(closedReason), 
                           qpoint});
  
      /*
       * Indicate that the consumer is closed, due to the local destination
       * being deleted/receiveExclusive/unreachable
       */
      this.closedReason = closedReason;
      
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
        SibTr.exit(tc, "close", true);
      return true;
    }
docs: Method close.
  <p>Called when the local consumers are being implicitly closed</p>