[jboss-jira] [JBoss JIRA] Created: (JGRP-934) NAKACK/UNICAST: atomic boolean vars might lead to message not getting processed immediately

[Bela Ban (JIRA)]

NAKACK/UNICAST: atomic boolean vars might lead to message not getting processed immediately
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                 Key: JGRP-934
                 URL: https://jira.jboss.org/jira/browse/JGRP-934
             Project: JGroups
          Issue Type: Bug
            Reporter: Bela Ban
            Assignee: Bela Ban
            Priority: Minor
             Fix For: 2.9


When we have a thread T1 adding a message and T2 removing them, the following situation might occur:

- T2 removes a null message
- T2 terminates remove loop
- T1 adds message M1 and tries to set the atomic var to true, result is false
- T2 sets the atomic boolean var from true to false
- T1 returns
- T2 returns
==> M1 is not getting processed until the next thread dlivers a message !

This is a very rare case, but still needs to be fixed, maybe with 2 overlapping atomic vars ?

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