[richfaces-issues] [JBoss JIRA] (RF-7248) a4j creates infinite HashMap.get loop

[Dennis Hermsdorf (JIRA)]

    [ https://issues.jboss.org/browse/RF-7248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12935822#comment-12935822 ] 

Dennis Hermsdorf commented on RF-7248:
--------------------------------------

Hello Nick,

I applied these changes and rebuild a new richfaces-impl-jsf2-3.3.3.Final.jar, but the problem is not gone. I haven't done any rebuilds of Richfaces before and maybe I did something wrong. Can you possibly provide me a rebuild of this version including this fix? I hope you can help, we are facing this issue at a large customer in production. Unfortunately an update of Richfaces to a higher version is not doable at this moment.

Together with this fix, I also use the mentioned value in the web.xml:

<context-param>
		<param-name>org.ajax4jsf.SERIALIZE_SERVER_STATE</param-name>
		<param-value>true</param-value>
</context-param>

Maybe this conflicts with the patched code? I can try to remove that anyway

Sincerely,
Dennis
                
> a4j creates infinite HashMap.get loop
> -------------------------------------
>
>                 Key: RF-7248
>                 URL: https://issues.jboss.org/browse/RF-7248
>             Project: RichFaces
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: component-tables
>    Affects Versions: 3.3.0, 3.3.3.Final
>            Reporter: Nida Cibulskyte
>            Assignee: Nick Belaevski
>              Labels: ENT
>             Fix For: 3.3.1.SP2, 3.3.4.BETA1
>
>         Attachments: infinite_loop.JPG, screenshot-1.jpg
>
>
> Concurrent requests on a4j components causes infinite loop. While one request is being proccessed by restoreChildState method, another request is senT for proccessing. It causes the code to get stuck in hashmap.get() as the hashmap is not synchronized and causes infinite loop.
> 2009 05 25 09:41:43 ERROR demo.NameBean  - java.util.HashMap.get(HashMap.java:303)
> 2009 05 25 09:41:43 ERROR demo.NameBean  - org.ajax4jsf.component.UIDataAdaptor.restoreChildState(UIDataAdaptor.java:965)
> 2009 05 25 09:41:43 ERROR demo.NameBean  - org.ajax4jsf.component.UIDataAdaptor.restoreChildState(UIDataAdaptor.java:982)
> 2009 05 25 09:41:43 ERROR demo.NameBean  - org.ajax4jsf.component.UIDataAdaptor.restoreChildState(UIDataAdaptor.java:982)
> .......................

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