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  1. JGroups
  2. JGRP-1862

NPE during FIND_MBRS when using shared transport

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      The following code within org.jgroups.protocols.TP.sendToSingleMember(...) throws an NPE if the transport is shared:

          Responses responses=(Responses)up(new Event(Event.FIND_MBRS, Arrays.asList(dest)));
    try {
        for(PingData data : responses) {
            if(data.getAddress() != null && data.getAddress().equals(dest)) {
                if((physical_dest=data.getPhysicalAddr()) != null) {
                    sendUnicast(physical_dest, buf, offset, length);
                    return;
                }
            }
        }
    }
    finally {
        responses.done();
    }

      This is because up(Event) always returns null when using a shared transport.
      The same issue affects org.jgroups.protocols.TP.fetchPhysicalAddrs(...):

          if(!missing.isEmpty()) {
        Responses rsps=(Responses)up(new Event(Event.FIND_MBRS, missing));
        rsps.done();
    }

            rhn-engineering-bban Bela Ban
            pferraro@redhat.com Paul Ferraro
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              Created:
              Updated:
              Resolved: