[jboss-jira] [JBoss JIRA] Created: (JGRP-707) stats logic NPE in NAKACK

[Gray Watson (JIRA)]

stats logic NPE in NAKACK
-------------------------

                 Key: JGRP-707
                 URL: http://jira.jboss.com/jira/browse/JGRP-707
             Project: JGroups
          Issue Type: Bug
    Affects Versions: 2.6.1
            Reporter: Gray Watson
         Assigned To: Bela Ban
            Priority: Minor


In the code for NAKACK, the first packet which is recorded as part of the stats for an address throws NPE.

        StatsEntry entry=map.get(key);
        if(entry == null) {
            entry = new StatsEntry();
            entry = map.putIfAbsent(key, entry);
           // ^^^^ this can return null if key does not exist
        }
        entry.xmit_reqs+=req;


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