[jboss-jira] [JBoss JIRA] (AS7-5127) Performance bottleneck on Javassist

[Scott Marlow (JIRA)]

    [ https://issues.jboss.org/browse/AS7-5127?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12744567#comment-12744567 ] 

Scott Marlow commented on AS7-5127:
-----------------------------------

JASSIST-189 is another regression that has been reported.  A patch is attached to the issue but still waiting to hear from the javassist lead on whether the patch is going to fix the issue.
                
> Performance bottleneck on Javassist
> -----------------------------------
>
>                 Key: AS7-5127
>                 URL: https://issues.jboss.org/browse/AS7-5127
>             Project: Application Server 7
>          Issue Type: Bug
>          Components: JPA / Hibernate
>    Affects Versions: 7.1.2.Final (EAP)
>         Environment: Sun/Oracle JDK 1.6_32, Linux 64b
>            Reporter: Alessandro Lazarotti
>            Assignee: Scott Marlow
>             Fix For: 7.2.0.Alpha1
>
>
> The method javassist.util.proxy.RuntimeSupport.find2methods has a synch block, called indirectly by ProxyFactory.createClass(). It is a strong bottleneck for frameworks as Hibernate which can use it several times in a large set of data. 
> Javassist 3.17.0-GA fixes it. AS7 should update its current javassist version.
> More details in https://issues.jboss.org/browse/JASSIST-163

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