[jboss-jira] [JBoss JIRA] (WFLY-4470) Duplicate message deliveries when start an MDB twice via CLI

[RH Bugzilla Integration (JIRA)]

     [ https://issues.jboss.org/browse/WFLY-4470?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

RH Bugzilla Integration updated WFLY-4470:
------------------------------------------
        Bugzilla Update: Perform
    Bugzilla References: https://bugzilla.redhat.com/show_bug.cgi?id=1159572


> Duplicate message deliveries when start an MDB twice via CLI 
> -------------------------------------------------------------
>
>                 Key: WFLY-4470
>                 URL: https://issues.jboss.org/browse/WFLY-4470
>             Project: WildFly
>          Issue Type: Bug
>          Components: EJB, JMS
>    Affects Versions: 9.0.0.Beta2
>            Reporter: Chao Wang
>            Assignee: Chao Wang
>             Fix For: 9.0.0.CR1
>
>
> Description of problem:
> A singleton MDB delivers duplicate messages when start-delivery() is invoked twice while the message being delivered
> Steps to Reproduce:
> 1. Create a producer, which keeps sending messages for every second
> 2. Deploy a singleton consumer MDB
> 3. Invoke start-delivery() method on the MDB while the messages being delivered
> Actual results:
> MDB delivers duplicate messages
> Expected results:
> MDB needs to ignore start-delivery() call if the MDB has already been started.
> Additional info:



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