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Date: Thu, 15 Mar 2012 21:48:38 +0000 (UTC)
From: "Simone Tripodi (Commented) (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (DIGESTER-163) ConcurrentModificationException
 creating a new Digester via loaderInstance.newDigester()
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    [ https://issues.apache.org/jira/browse/DIGESTER-163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13230593#comment-13230593 ] 

Simone Tripodi commented on DIGESTER-163:
-----------------------------------------

I just committed [r1301217|http://svn.apache.org/viewvc?rev=1301217&view=rev], can you check if it works in your environment please?
I adopted the strategy of loading the rules stream as soon as the loaders methods are invoked... less performant but safer :P
Please let me know, thanks in advance!
                
> ConcurrentModificationException creating a new Digester via loaderInstance.newDigester()
> ----------------------------------------------------------------------------------------
>
>                 Key: DIGESTER-163
>                 URL: https://issues.apache.org/jira/browse/DIGESTER-163
>             Project: Commons Digester
>          Issue Type: Bug
>    Affects Versions: 3.2
>         Environment: Linux, JDK 6
>            Reporter: Torsten Krah
>         Attachments: 163-2.patch, 163.patch, Digester163TestCase.java, cli-mvn-test-withfix.txt, stack-afterfix.txt, stack-mvn.txt
>
>
> I am gettig a ConcurrentModificationException when trying to create new Digester instance from a configured loader:
> Trace is:
> {code}
> java.util.ConcurrentModificationException: null
> 	at java.util.LinkedList$ListItr.checkForComodification(LinkedList.java:761) ~[na:1.6.0_27]
> 	at java.util.LinkedList$ListItr.next(LinkedList.java:696) ~[na:1.6.0_27]
> 	at org.apache.commons.digester3.binder.FromBinderRuleSet.addRuleInstances(FromBinderRuleSet.java:130) ~[commons-digester3-3.2.jar:3.2]
> 	at org.apache.commons.digester3.binder.DigesterLoader.addRules(DigesterLoader.java:581) ~[commons-digester3-3.2.jar:3.2]
> 	at org.apache.commons.digester3.binder.DigesterLoader.newDigester(DigesterLoader.java:568) ~[commons-digester3-3.2.jar:3.2]
> 	at org.apache.commons.digester3.binder.DigesterLoader.newDigester(DigesterLoader.java:516) ~[commons-digester3-3.2.jar:3.2]
> 	at org.apache.commons.digester3.binder.DigesterLoader.newDigester(DigesterLoader.java:475) ~[commons-digester3-3.2.jar:3.2]
> 	at org.apache.commons.digester3.binder.DigesterLoader.newDigester(DigesterLoader.java:462) ~[commons-digester3-3.2.jar:3.2]
> {code}
> The binder documentation (employee servlet) and the mailing list did confirm to me, that the loader should be safe to be shared, so this should not happen.

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