jsf 2 - javax.el.PropertyNotFoundException when submitting ui:repeat with conditionally rendered properties of different subclasses -

in backing-bean have collection of objects of different subclasses sharing common interface. inside view, ui:repeat iterates on collection. inside loop, different properties have rendered depending on concrete implementation of interface.

i reduced problem following backing bean:

@named @sessionscoped public class dummybean implements serializable {     private list<type> objects = new arraylist<type>();      public void add1() {         objects.add(new type1());     }      public void add2() {         objects.add(new type2());     }      public void remove(type o) {         objects.remove(o);     }      // getter. } 

and following type implementations added methods add1 , add2. have common properties, may have different ones, such gettype1onlymethod() in below example:

public class type1 implements type {     @override     public string gettype() { return "1"; }      public list<string> gettype1onlymethod() {         return arrays.aslist("only1", "only2");     }      // ... } 

public class type2 implements type {     @override     public string gettype() { return "2"; }      // ... } 

in view want iterate on objects stored in dummybean , display contents. depending on concrete type of object, method implemented in class type1 may called using rendered-attribute conditional rendering:

<h:form id="dummyform">   <ui:repeat value="#{dummybean.objects}" var="_obj" >     <h:outputtext value="type of object #{_obj.type}." />     <h:panelgroup rendered="#{_obj.type eq '1'}">       <ui:repeat value="#{_obj.type1onlymethod}" var="_oneonlyobject" varstatus="_status" >         <h:outputtext value="#{_oneonlyobject}" />       </ui:repeat>     </h:panelgroup>     <h:commandlink value="remove" action="#{dummybean.remove(_obj)}">       <f:ajax render="dummyform" />     </h:commandlink>     <br/>   </ui:repeat>    <h:commandlink value="add1" action="#{dummybean.add1}">     <f:ajax render="dummyform" />   </h:commandlink>   <br/>   <h:commandlink value="add2" action="#{dummybean.add2}">     <f:ajax render="dummyform" />   </h:commandlink> </h:form> 

using h:commandlinks on page can add , remove type1 objects @ will. if add type2 objects, rendered expected. when try remove 1 of type2 objects, exception in render-response phase (nevertheless if there other elements in list or not):

2014-03-24 15:42:46,754 severe [javax.enterprise.resource.webcontainer.jsf.application] (default task-11) error rendering view[/transition/begintestsite.xhtml]:    javax.el.propertynotfoundexception: /transition/begintestsite.xhtml @23,96 value="#{_obj.type1onlymethod}": class 'at.co.xss.type2' not have property 'type1onlymethod'.         @ com.sun.faces.facelets.el.tagvalueexpression.getvalue(tagvalueexpression.java:111) [jsf-impl-2.2.5-jbossorg-3.jar:]         @ com.sun.faces.facelets.component.uirepeat.getvalue(uirepeat.java:279) [jsf-impl-2.2.5-jbossorg-3.jar:]         @ com.sun.faces.facelets.component.uirepeat.getdatamodel(uirepeat.java:255) [jsf-impl-2.2.5-jbossorg-3.jar:]         @ com.sun.faces.facelets.component.uirepeat.setindex(uirepeat.java:523) [jsf-impl-2.2.5-jbossorg-3.jar:]         @ com.sun.faces.facelets.component.uirepeat.dovisitchildren(uirepeat.java:790) [jsf-impl-2.2.5-jbossorg-3.jar:]         @ com.sun.faces.facelets.component.uirepeat.visittree(uirepeat.java:748) [jsf-impl-2.2.5-jbossorg-3.jar:]         @ javax.faces.component.uicomponent.visittree(uicomponent.java:1700) [jboss-jsf-api_2.2_spec-2.2.5.jar:2.2.5]         @ com.sun.faces.facelets.component.uirepeat.visittree(uirepeat.java:754) [jsf-impl-2.2.5-jbossorg-3.jar:]         @ javax.faces.component.uicomponent.visittree(uicomponent.java:1700) [jboss-jsf-api_2.2_spec-2.2.5.jar:2.2.5]         @ javax.faces.component.uiform.visittree(uiform.java:371) [jboss-jsf-api_2.2_spec-2.2.5.jar:2.2.5]         @ javax.faces.component.uicomponent.visittree(uicomponent.java:1700) [jboss-jsf-api_2.2_spec-2.2.5.jar:2.2.5]         @ javax.faces.component.uicomponent.visittree(uicomponent.java:1700) [jboss-jsf-api_2.2_spec-2.2.5.jar:2.2.5]         @ com.sun.faces.application.view.faceletpartialstatemanagementstrategy.saveview(faceletpartialstatemanagementstrategy.java:472) [jsf-impl-2.2.5-jbossorg-3.jar:]         @ com.sun.faces.application.statemanagerimpl.saveview(statemanagerimpl.java:89) [jsf-impl-2.2.5-jbossorg-3.jar:]         @ javax.faces.application.statemanager.getviewstate(statemanager.java:593) [jboss-jsf-api_2.2_spec-2.2.5.jar:2.2.5]         @ com.sun.faces.context.partialviewcontextimpl.renderstate(partialviewcontextimpl.java:486) [jsf-impl-2.2.5-jbossorg-3.jar:]         @ com.sun.faces.context.partialviewcontextimpl.processpartial(partialviewcontextimpl.java:328) [jsf-impl-2.2.5-jbossorg-3.jar:]         @ javax.faces.context.partialviewcontextwrapper.processpartial(partialviewcontextwrapper.java:219) [jboss-jsf-api_2.2_spec-2.2.5.jar:2.2.5]         @ org.primefaces.context.primepartialviewcontext.processpartial(primepartialviewcontext.java:57) [primefaces-4.0.jar:4.0]         @ org.richfaces.context.extendedpartialviewcontextimpl.processpartial(extendedpartialviewcontextimpl.java:218) [richfaces-core-impl-4.3.5.final.jar:4.3.5.final]         @ javax.faces.component.uiviewroot.encodechildren(uiviewroot.java:1004) [jboss-jsf-api_2.2_spec-2.2.5.jar:2.2.5]         @ javax.faces.component.uicomponent.encodeall(uicomponent.java:1856) [jboss-jsf-api_2.2_spec-2.2.5.jar:2.2.5]         @ com.sun.faces.application.view.faceletviewhandlingstrategy.renderview(faceletviewhandlingstrategy.java:435) [jsf-impl-2.2.5-jbossorg-3.jar:]         @ com.sun.faces.application.view.multiviewhandler.renderview(multiviewhandler.java:133) [jsf-impl-2.2.5-jbossorg-3.jar:]         @ javax.faces.application.viewhandlerwrapper.renderview(viewhandlerwrapper.java:337) [jboss-jsf-api_2.2_spec-2.2.5.jar:2.2.5]         @ javax.faces.application.viewhandlerwrapper.renderview(viewhandlerwrapper.java:337) [jboss-jsf-api_2.2_spec-2.2.5.jar:2.2.5]         @ javax.faces.application.viewhandlerwrapper.renderview(viewhandlerwrapper.java:337) [jboss-jsf-api_2.2_spec-2.2.5.jar:2.2.5]         @ javax.faces.application.viewhandlerwrapper.renderview(viewhandlerwrapper.java:337) [jboss-jsf-api_2.2_spec-2.2.5.jar:2.2.5]         @ com.sun.faces.lifecycle.renderresponsephase.execute(renderresponsephase.java:120) [jsf-impl-2.2.5-jbossorg-3.jar:]         @ com.sun.faces.lifecycle.phase.dophase(phase.java:101) [jsf-impl-2.2.5-jbossorg-3.jar:]         @ com.sun.faces.lifecycle.lifecycleimpl.render(lifecycleimpl.java:219) [jsf-impl-2.2.5-jbossorg-3.jar:]         @ javax.faces.webapp.facesservlet.service(facesservlet.java:647) [jboss-jsf-api_2.2_spec-2.2.5.jar:2.2.5]         @ io.undertow.servlet.handlers.servlethandler.handlerequest(servlethandler.java:85) [undertow-servlet-1.0.0.final.jar:1.0.0.final]         @ io.undertow.servlet.handlers.filterhandler$filterchainimpl.dofilter(filterhandler.java:130) [undertow-servlet-1.0.0.final.jar:1.0.0.final]         @ org.apache.shiro.web.servlet.abstractshirofilter.executechain(abstractshirofilter.java:449) [shiro-web-1.2.2.jar:1.2.2]         @ org.apache.shiro.web.servlet.abstractshirofilter$1.call(abstractshirofilter.java:365) [shiro-web-1.2.2.jar:1.2.2]         @ org.apache.shiro.subject.support.subjectcallable.docall(subjectcallable.java:90) [shiro-core-1.2.2.jar:1.2.2]         @ org.apache.shiro.subject.support.subjectcallable.call(subjectcallable.java:83) [shiro-core-1.2.2.jar:1.2.2]         @ org.apache.shiro.subject.support.delegatingsubject.execute(delegatingsubject.java:383) [shiro-core-1.2.2.jar:1.2.2]         @ org.apache.shiro.web.servlet.abstractshirofilter.dofilterinternal(abstractshirofilter.java:362) [shiro-web-1.2.2.jar:1.2.2]         @ org.apache.shiro.web.servlet.onceperrequestfilter.dofilter(onceperrequestfilter.java:125) [shiro-web-1.2.2.jar:1.2.2]         @ io.undertow.servlet.core.managedfilter.dofilter(managedfilter.java:56) [undertow-servlet-1.0.0.final.jar:1.0.0.final]         @ io.undertow.servlet.handlers.filterhandler$filterchainimpl.dofilter(filterhandler.java:132) [undertow-servlet-1.0.0.final.jar:1.0.0.final]         @ io.undertow.servlet.handlers.filterhandler.handlerequest(filterhandler.java:85) [undertow-servlet-1.0.0.final.jar:1.0.0.final]         @ io.undertow.servlet.handlers.security.servletsecurityrolehandler.handlerequest(servletsecurityrolehandler.java:61) [undertow-servlet-1.0.0.final.jar:1.0.0.final]         @ io.undertow.servlet.handlers.servletdispatchinghandler.handlerequest(servletdispatchinghandler.java:36) [undertow-servlet-1.0.0.final.jar:1.0.0.final]         @ org.wildfly.extension.undertow.security.securitycontextassociationhandler.handlerequest(securitycontextassociationhandler.java:78)         @ io.undertow.server.handlers.predicatehandler.handlerequest(predicatehandler.java:25) [undertow-core-1.0.0.final.jar:1.0.0.final]         @ io.undertow.servlet.handlers.security.sslinformationassociationhandler.handlerequest(sslinformationassociationhandler.java:113) [undertow-servlet-1.0.0.final.jar:1.0.0.final]         @ io.undertow.security.handlers.authenticationcallhandler.handlerequest(authenticationcallhandler.java:52) [undertow-core-1.0.0.final.jar:1.0.0.final]         @ io.undertow.security.handlers.abstractconfidentialityhandler.handlerequest(abstractconfidentialityhandler.java:45) [undertow-core-1.0.0.final.jar:1.0.0.final]         @ io.undertow.servlet.handlers.security.servletconfidentialityconstrainthandler.handlerequest(servletconfidentialityconstrainthandler.java:61) [undertow-servlet-1.0.0.final.jar:1.0.0.final]         @ io.undertow.servlet.handlers.security.cachedauthenticatedsessionhandler.handlerequest(cachedauthenticatedsessionhandler.java:70) [undertow-servlet-1.0.0.final.jar:1.0.0.final]         @ io.undertow.security.handlers.securityinitialhandler.handlerequest(securityinitialhandler.java:76) [undertow-core-1.0.0.final.jar:1.0.0.final]         @ io.undertow.server.handlers.predicatehandler.handlerequest(predicatehandler.java:25) [undertow-core-1.0.0.final.jar:1.0.0.final]         @ org.wildfly.extension.undertow.security.jacc.jacccontextidhandler.handlerequest(jacccontextidhandler.java:61)         @ io.undertow.server.handlers.predicatehandler.handlerequest(predicatehandler.java:25) [undertow-core-1.0.0.final.jar:1.0.0.final]         @ io.undertow.server.handlers.predicatehandler.handlerequest(predicatehandler.java:25) [undertow-core-1.0.0.final.jar:1.0.0.final]         @ io.undertow.servlet.handlers.servletinitialhandler.handlefirstrequest(servletinitialhandler.java:240) [undertow-servlet-1.0.0.final.jar:1.0.0.final]         @ io.undertow.servlet.handlers.servletinitialhandler.dispatchrequest(servletinitialhandler.java:227) [undertow-servlet-1.0.0.final.jar:1.0.0.final]         @ io.undertow.servlet.handlers.servletinitialhandler.access$000(servletinitialhandler.java:73) [undertow-servlet-1.0.0.final.jar:1.0.0.final]         @ io.undertow.servlet.handlers.servletinitialhandler$1.handlerequest(servletinitialhandler.java:146) [undertow-servlet-1.0.0.final.jar:1.0.0.final]         @ io.undertow.server.connectors.executeroothandler(connectors.java:168) [undertow-core-1.0.0.final.jar:1.0.0.final]         @ io.undertow.server.httpserverexchange$1.run(httpserverexchange.java:687) [undertow-core-1.0.0.final.jar:1.0.0.final]         @ java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1145) [rt.jar:1.7.0_45]         @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:615) [rt.jar:1.7.0_45]         @ java.lang.thread.run(thread.java:744) [rt.jar:1.7.0_45] caused by: javax.el.propertynotfoundexception: class 'at.co.xss.type2' not have property 'type1onlymethod'.         @ javax.el.beanelresolver.getbeanproperty(beanelresolver.java:730) [javax.el-3.0.0.jar:3.0.0]         @ javax.el.beanelresolver.getvalue(beanelresolver.java:351) [javax.el-3.0.0.jar:3.0.0]         @ com.sun.faces.el.demuxcompositeelresolver._getvalue(demuxcompositeelresolver.java:176) [jsf-impl-2.2.5-jbossorg-3.jar:]         @ com.sun.faces.el.demuxcompositeelresolver.getvalue(demuxcompositeelresolver.java:203) [jsf-impl-2.2.5-jbossorg-3.jar:]         @ com.sun.el.parser.astvalue.getvalue(astvalue.java:140) [javax.el-3.0.0.jar:3.0.0]         @ com.sun.el.parser.astvalue.getvalue(astvalue.java:204) [javax.el-3.0.0.jar:3.0.0]         @ com.sun.el.valueexpressionimpl.getvalue(valueexpressionimpl.java:226) [javax.el-3.0.0.jar:3.0.0]         @ org.jboss.weld.el.weldvalueexpression.getvalue(weldvalueexpression.java:50) [weld-core-impl-2.1.2.final.jar:2014-01-09 09:23]         @ org.jboss.weld.el.weldvalueexpression.getvalue(weldvalueexpression.java:50) [weld-core-impl-2.1.2.final.jar:2014-01-09 09:23]         @ com.sun.faces.facelets.el.tagvalueexpression.getvalue(tagvalueexpression.java:109) [jsf-impl-2.2.5-jbossorg-3.jar:]         ... 66 more 

it seems in render-response phase nested ui:repeat "executed" deleted type2 object.

if remove second (nested) ui:repeat , add plain h:outputtext access property available in type1, works again without exception when add or remove elements:

<h:form id="dummyform">   <ui:repeat value="#{dummybean.objects}" var="_obj" >     <!-- ... -->     <h:panelgroup rendered="#{_obj.type eq '1'}">       <h:outputtext value="#{_obj.type1onlymethod.size()}" />     </h:panelgroup>     <!-- ... --> </h:form> 

does have idea on topic?

(running on jee7 application server (wildfly 8.0.0.final))

this caused bug in state management of mojarra's <ui:repeat> fixed per issue 3215 reported fellow arjan tijms. faced problem when iterating on different block instances @ zeef.com (linkblock, imageblock, textblock , feedblock). fix available in mojarra 2.2.7 , jsf 2.0/2.1 backported mojarra 2.1.29 per issue 3221. upgrading @ least version (or latest available per mojarra homepage) should it.

otherwise, best bet replace <ui:repeat> <c:foreach>.