[jira] Commented: (AMQ-2021) durable subscriber gets stuck while using persistent delivery mode and client acknowledgment with session.recover().

["Gary Tully (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/activemq/browse/AMQ-2021?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=48317#action_48317 ] 

Gary Tully commented on AMQ-2021:
---------------------------------

ps: thanks for the test case :-) I committed a variant of it that catches the various failure scenarios.

> durable subscriber gets stuck while using persistent delivery mode and client acknowledgment with session.recover().
> --------------------------------------------------------------------------------------------------------------------
>
>                 Key: AMQ-2021
>                 URL: https://issues.apache.org/activemq/browse/AMQ-2021
>             Project: ActiveMQ
>          Issue Type: Bug
>    Affects Versions: 5.2.0
>         Environment: WinXP,
> java version "1.6.0_05"
> Java(TM) SE Runtime Environment (build 1.6.0_05-b13)
> Java HotSpot(TM) Client VM (build 10.0-b19, mixed mode, sharing) 
>            Reporter: Juraj Kuruc
>            Assignee: Gary Tully
>            Priority: Critical
>             Fix For: 5.3.0
>
>         Attachments: amq2021.zip
>
>
> Using two topic durable subscribers which consume every odd message and recover their session if message number is even one of the durable subscriper after couple hundred messages get stuck and  java.lang.NullPointerException is shown on provider console.
> Reproducing steps:
> 1. start amq server using default configuration.
> 2. run TopicRedeliver.
> 3. run TopicProducer.
> Discovered during test of  https://issues.apache.org/activemq/browse/AMQ-1797 .
> See attached logs and java files. 

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