[jboss-jira] [JBoss JIRA] (WFCORE-4710) Wrong BufferPoolMXBean name used in lookup

[Andrew Dinn (Jira)]

    [ https://issues.jboss.org/browse/WFCORE-4710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13799393#comment-13799393 ] 

Andrew Dinn commented on WFCORE-4710:
-------------------------------------

Thanks for looking at this Brian. I'm sure you know far better than I do what the solution is.

It is actually quite lucky the error method was passed the escaped name as otherwise the message would have been even more confusing.

I'm not at all surprised this has not turned up before. Changes to the buffer pool are rare and changes which install names with e.g. spaces that need escaping even more so. Let me know if you have problems recreating this.


> Wrong BufferPoolMXBean name used in lookup
> ------------------------------------------
>
>                 Key: WFCORE-4710
>                 URL: https://issues.jboss.org/browse/WFCORE-4710
>             Project: WildFly Core
>          Issue Type: Enhancement
>          Components: JMX
>    Affects Versions: 10.0.0.Final
>            Reporter: Andrew Dinn
>            Assignee: Brian Stansberry
>            Priority: Major
>
> Class BufferPoolMXBeanResource transforms the name of retrieved MXBeans to handle embedded spaces and other special characters by calling method escapeMBeanName. Later on class BufferPoolMXBeanResourceAttributeHandler uses the name to identify the corresponding bean. Unfortunately, when BufferPoolMXBeanResourceAttributeHandler checks that the bean is registered it does not reverse the transformation by calling unescapeMBeanName.
> This causes a lookup failure when the new buffer pool non-volatiel memory MXBean is encountered on JDK14. Although Wildlfy appears to continue running the error message appears to cause failures in some of the Wildfly tests, notably those that check error stream output.
> See the referenced forum thread for full details.



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