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From "Christopher L. Shannon (JIRA)" <>
Subject [jira] [Resolved] (AMQ-6214) JAAS bug that causes user group membership not reloaded dynamically when reload is true
Date Wed, 16 Mar 2016 14:53:33 GMT


Christopher L. Shannon resolved AMQ-6214.
       Resolution: Fixed
    Fix Version/s: 5.13.3

Patch applied along with a test to prevent this from happening again.  Thanks for the fix.

> JAAS bug that causes user group membership not reloaded dynamically when reload is true
> ---------------------------------------------------------------------------------------
>                 Key: AMQ-6214
>                 URL:
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: jaas
>    Affects Versions: 5.13.0, 5.13.2
>         Environment: Linux, Mac
>            Reporter: Nanchang Yang
>            Assignee: Christopher L. Shannon
>            Priority: Minor
>              Labels: easyfix
>             Fix For: 5.14.0, 5.13.3
>         Attachments:, activemq.xml,, login.config,
> There is a bug in JAAS that caused users group membership not dynamically loading at
runtime. Specifically, when I used the org.apache.activemq.jaas.PropertiesLoginModule with
reload=true, changes in user name and password were reflected in connections after the changes,
but changes in group membership was not reloaded/picked up by new connections.
> The configuration of my broker xml and,, as well as
the login.config files are attached.  
> The problem was repeatable always.
> The cause of the problem was identified as the groups membership was cached and the cache
was not cleared (reloaded) after the file change.
> The fix is to add one line of code in the
> The src code with the fix for is attached
in the ticket as well.
> Please verify the fix and merge this one line of code change in
class in src branches for 5.13.0 as I tested the problem with 5.13.0 only.  The fix should
be carried forward and retroactively merged into previous versions as well.
> There is no negative impact on software or any noticeable impact on server performance.

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