ConcurrentModificationException when using t:selectManyPickList and
h:selectOneMenu
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Key: TOMAHAWK-1529
URL: https://issues.apache.org/jira/browse/TOMAHAWK-1529
Project: MyFaces Tomahawk
Issue Type: Bug
Affects Versions: 1.1.10-SNAPSHOT
Environment: Solaris 5.8, Java HotSpot(TM) Server VM (build
1.5.0_05-b05, mixed mode)
Tomcat 6.0.26 running with Security Manager
MyFaces 1.1.7
Reporter: suresh t
I have a backend bean supporting jsf page. It has many components similar to
one shown below. where srch1vals is a ArrayList of SelectItem s
<h:selectOneMenu id="search_search1"
immediate="true" value="#{searchController.vSrch1}" styleClass="selectOneMenu">
<f:selectItems
value="#{searchController.srch1vals}" />
</h:selectOneMenu>
There is one other components selectManyPickList that has value set
to srch1revvals. srch1revvals clones srch1vals in the Get accesor using
CollectionUtils.collect() method.
<t:selectManyPicklist id="select_pick1"
size="5" value="#{searchController.selectedPicks}"
valueChangeListener="#{searchController.selectionChanged}"
rendered="#{searchController.searchvalsResults}">
<f:selectItems
value="#{searchController.srch1revvals}" />
</t:selectManyPicklist>
I am getting occasional ConcurrentModificationException as follows.
Jul 6, 2010 4:35:38 PM org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet jsp threw exception
java.util.ConcurrentModificationException
at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:4
49)
at java.util.AbstractList$Itr.next(AbstractList.java:420)
at org.apache.commons.collections.CollectionUtils.collect(CollectionUtil
s.java:631)
at org.apache.commons.collections.CollectionUtils.collect(CollectionUtil
s.java:610)
at org.apache.commons.collections.CollectionUtils.collect(CollectionUtil
s.java:575)
at com.utmb.web.beans.searchController.getsrch1revvals(Unknown Source)
at sun.reflect.GeneratedMethodAccessor780.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.myfaces.el.PropertyResolverImpl.getProperty(PropertyResolv
erImpl.java:459)
at org.apache.myfaces.el.PropertyResolverImpl.getValue(PropertyResolverI
mpl.java:85)
at org.apache.myfaces.el.ELParserHelper$MyPropertySuffix.evaluate(ELPars
erHelper.java:539)
at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java:145)
at org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java
:386)
at javax.faces.component.UISelectItems.getValue(UISelectItems.java:108)
at org.apache.myfaces.shared_tomahawk.util.SelectItemsIterator.hasNext(S
electItemsIterator.java:127)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.internalGe
tSelectItemList(RendererUtils.java:462)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.getSelectI
temList(RendererUtils.java:448)
at org.apache.myfaces.custom.picklist.HtmlPicklistRenderer.encodeEnd(Htm
lPicklistRenderer.java:161)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:
775)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChil
d(RendererUtils.java:431)
at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlGridRendererBas
e.renderChildren(HtmlGridRendererBase.java:229)
at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlGridRendererBas
e.encodeEnd(HtmlGridRendererBase.java:101)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:
775)
at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChil
d(RendererUtils.java:431)
at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlGridRendererBas
e.renderChildren(HtmlGridRendererBase.java:229)
at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlGridRendererBas
e.encodeEnd(HtmlGridRendererBase.java:101)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:
775)
at javax.faces.webapp.UIComponentTag.encodeEnd(UIComponentTag.java:678)
at javax.faces.webapp.UIComponentTag.doEndTag(UIComponentTag.java:546)
at org.apache.jsp.protected_.query_jsp._jspx_meth_t_005fpanelGrid_005f4(
query_jsp.java:1343)
at org.apache.jsp.protected_.query_jsp._jspx_meth_h_005fform_005f0(query
_jsp.java:727)
at org.apache.jsp.protected_.query_jsp._jspx_meth_f_005fview_005f0(query
_jsp.java:620)
at org.apache.jsp.protected_.query_jsp._jspService(query_jsp.java:215)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper
.java:377)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:3
13)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at sun.reflect.GeneratedMethodAccessor46.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:269
)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:3
at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.
java:162)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:283)
at org.apache.catalina.core.ApplicationFilterChain.access$000(Applicatio
nFilterChain.java:56)
at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilt
erChain.java:189)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:185)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDisp
atcher.java:646)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(Applica
tionDispatcher.java:436)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationD
ispatcher.java:374)
at org.apache.catalina.core.ApplicationDispatcher.access$000(Application
Dispatcher.java:65)
at org.apache.catalina.core.ApplicationDispatcher$PrivilegedForward.run(
ApplicationDispatcher.java:80)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDis
patcher.java:294)
at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatc
h(ServletExternalContextImpl.java:426)
at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspV
iewHandlerImpl.java:255)
at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderRes
ponseExecutor.java:41)
at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:
146)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:147)
at sun.reflect.GeneratedMethodAccessor354.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:269
)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
at org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:3
01)
at org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.
java:243)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:230)
at org.apache.catalina.core.ApplicationFilterChain.access$000(Applicatio
nFilterChain.java:56)
at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilt
erChain.java:189)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:185)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:191)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(Authentica
torBase.java:558)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:102)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:
555)
at org.apache.catalina.authenticator.SingleSignOn.invoke(SingleSignOn.ja
va:421)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
a:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:852)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
ss(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:48
9)
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