[jboss-dev-forums] [JBoss AS7 Development] - ConcurrentModificationException Error when deploying the struts1.3.5 application on Jboss 7

[leo li]

leo li [http://community.jboss.org/people/leo87601] created the discussion

"ConcurrentModificationException Error when deploying the struts1.3.5 application on Jboss 7"

To view the discussion, visit: http://community.jboss.org/message/630555#630555

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Dear all, 
Please help us to reslove this problem.  And the application are working fine in the Websphere Appolication 7, and we want to migrate them to Jboss7. 

We have some user define taglib which is a  sub class of the "NestedIterateTag" (org.apache.struts.taglib.nested.logic.NestedIterateTag) in a struts1.3.5  application on Jboss 7.

The jsp page are working fine on our first click in the page, but it will faild when we click the page again. 

The error are following:
 Servlet.service() for servlet action threw exception: java.util.ConcurrentModificationException
at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372) [:1.6.0_13]
    at java.util.AbstractList$Itr.next(AbstractList.java:343) [:1.6.0_13]
    at org.apache.struts.taglib.logic.IterateTag.doAfterBody(IterateTag.java:377) [struts-taglib-1.3.5.jar:]
    at org.apache.struts.taglib.nested.logic.NestedIterateTag.doAfterBody(NestedIterateTag.java:124) [struts-taglib-1.3.5.jar:]
    at .******..****.taglib.dataset.RowTemplateTag.doAfterBody(RowTemplateTag.java:52) [classes:]
    at org.apache.jsp.fw.jsp.acl.manageFunctionLeaf_jsp._jspService(manageFunctionLeaf_jsp.java:765)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:326) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:253) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:734) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:541) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:479) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:407) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at org.apache.struts.chain.commands.servlet.PerformForward.handleAsForward(PerformForward.java:99) [struts-core-1.3.5.jar:]
    at org.apache.struts.chain.commands.servlet.PerformForward.perform(PerformForward.java:82) [struts-core-1.3.5.jar:]
    at org.apache.struts.chain.commands.AbstractPerformForward.execute(AbstractPerformForward.java:51) [struts-core-1.3.5.jar:]
    at org.apache.struts.chain.commands.ActionCommandBase.execute(ActionCommandBase.java:48) [struts-core-1.3.5.jar:]
    at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190) [commons-chain-1.1.jar:]
    at org.apache.commons.chain.generic.LookupCommand.execute(LookupCommand.java:304) [commons-chain-1.1.jar:]
    at org.apache.commons.chain.impl.ChainBase.execute(ChainBase.java:190) [commons-chain-1.1.jar:]
    at org.apache.struts.chain.ComposableRequestProcessor.process(ComposableRequestProcessor.java:280) [struts-core-1.3.5.jar:]
    at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1858) [struts-core-1.3.5.jar:]
    at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:446) [struts-core-1.3.5.jar:]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:734) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at crown.fw.filter.authorization.AccessControlFilter.checkAccessPermissions(AccessControlFilter.java:285) [classes:]
    at crown.fw.filter.authorization.AccessControlFilter.doFilter(AccessControlFilter.java:187) [classes:]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:280) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:139) [jboss-as-web-7.0.1.Final.jar:7.0.1.Final]
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:480) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at org.jboss.as.web.NamingValve.invoke(NamingValve.java:57) [jboss-as-web-7.0.1.Final.jar:7.0.1.Final]
    at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:49) [jboss-as-jpa-7.0.1.Final.jar:7.0.1.Final]
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:154) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:362) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:667) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:952) [jbossweb-7.0.1.Final.jar:7.0.1.Final]
    at java.lang.Thread.run(Thread.java:619) [:1.6.0_13]
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