[seam-issues] [JBoss JIRA] Commented: (JBSEAM-4832) Exception in the filter chain javax.servlet.ServletException: java.util.ConcurrentModificationException

[Marek Novotny (JIRA)]

    [ https://issues.jboss.org/browse/JBSEAM-4832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12619344#comment-12619344 ] 

Marek Novotny commented on JBSEAM-4832:
---------------------------------------

You should provide more details about reproducing the exception. it certanly indicates that there is a bug in destroying conversation, but we need to know more about your use case.

> Exception in the filter chain javax.servlet.ServletException: java.util.ConcurrentModificationException
> -------------------------------------------------------------------------------------------------------
>
>                 Key: JBSEAM-4832
>                 URL: https://issues.jboss.org/browse/JBSEAM-4832
>             Project: Seam 2
>          Issue Type: Bug
>    Affects Versions: 2.1.2.GA
>         Environment: jboss-4.2.2.GA
>            Reporter: Ruslan Ahmetshin
>
> 2011-07-25 12:46:23,457 ERROR User:t624 at etera [org.ajax4jsf.webapp.BaseXMLFilter] [http-192.168.129.59-8080-18] Exception in the filter chain 
> javax.servlet.ServletException: java.util.ConcurrentModificationException 
>         at org.jboss.seam.servlet.ContextualHttpServletRequest.run(ContextualHttpServletRequest.java:74) 
>         at org.jboss.seam.web.ContextFilter.doFilter(ContextFilter.java:37) 
>         at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) 
>         at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178) 
>         at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290) 
>         at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:390) 
>         at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:517) 
>         at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56) 
>         at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) 
>         at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:60) 
>         at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) 
>         at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:73) 
>         at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) 
>         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) 
>         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
> .............................
> Caused by: java.util.ConcurrentModificationException 
>         at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793) 
>         at java.util.HashMap$ValueIterator.next(HashMap.java:822) 
>         at java.util.AbstractCollection.toArray(AbstractCollection.java:124) 
>         at java.util.Collections$UnmodifiableCollection.toArray(Collections.java:1001) 
>         at java.util.ArrayList.<init>(ArrayList.java:131) 
>         at org.jboss.seam.core.Manager.conversationTimeout(Manager.java:387) 
>         at org.jboss.seam.core.Manager.endRequest(Manager.java:471) 
>         at org.jboss.seam.servlet.ContextualHttpServletRequest.run(ContextualHttpServletRequest.java:55) 
>         ... 44 more
> The seam debug mode is turned off <core:init debug="false" />.

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