[jira] Commented: (TOMAHAWK-1529) ConcurrentModificationException when using t:selectManyPickList and h:selectOneMenu
[
https://issues.apache.org/jira/browse/TOMAHAWK-1529?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12891983#action_12891983
]
Jan-Kees van Andel commented on TOMAHAWK-1529:
--
I'm pretty sure it has nothing to do with MyFaces...
I've seen issues like this one very often in the field. Most of the time the
cause was a direct remove action on the collection (not remove() on the
iterator) while iterating it.
You're passing in a Transformer into CollectionUtils.collect(), somewhere in
"com.utmb.web.beans.searchController.getsrch1revvals". I can't see the line
number in the stack trace, but it should be there.
I'm very curious what this Transformer looks like.
> ConcurrentModificationException when using t:selectManyPickList and
> h:selectOneMenu
> ---
>
> 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
>immediate="true" value="#{searchController.vSrch1}"
> styleClass="selectOneMenu">
>value="#{searchController.srch1vals}" />
>
> There is one other components selectManyPickList that has value
> set to srch1revvals. srch1revvals clones srch1vals in the Get accesor using
> CollectionUtils.collect() method.
>size="5" value="#{searchController.selectedPicks}"
> valueChangeListener="#{searchController.selectionChanged}"
> rendered="#{searchController.searchvalsResults}">
>value="#{searchController.srch1revvals}" />
>
> 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
[jira] Commented: (TOMAHAWK-1529) ConcurrentModificationException when using t:selectManyPickList and h:selectOneMenu
[
https://issues.apache.org/jira/browse/TOMAHAWK-1529?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12891964#action_12891964
]
Jakob Korherr commented on TOMAHAWK-1529:
-
I think the probem seems to be on your side, because the value of a
is never changed by MyFaces.
Do you change the Collection #{searchController.srch1vals} at some point in
your app? This would explain the behavior...
> ConcurrentModificationException when using t:selectManyPickList and
> h:selectOneMenu
> ---
>
> 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
>immediate="true" value="#{searchController.vSrch1}"
> styleClass="selectOneMenu">
>value="#{searchController.srch1vals}" />
>
> There is one other components selectManyPickList that has value
> set to srch1revvals. srch1revvals clones srch1vals in the Get accesor using
> CollectionUtils.collect() method.
>size="5" value="#{searchController.selectedPicks}"
> valueChangeListener="#{searchController.selectionChanged}"
> rendered="#{searchController.searchvalsResults}">
>value="#{searchController.srch1revvals}" />
>
> 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(HtmlGridRendererBas
