docs: public void close()
        throws SIResourceException, SIConnectionLostException, SIErrorException,
               SIConnectionDroppedException
     {
        if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.entry(this, tc, "close");
        close(false);
        if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.exit(this, tc, "close");
     }