s:selectItems + a4j:support = NullPointerException
saeediqbal1 Feb 11, 2008 1:11 AMI get a nullpointerexception when i move the select box back to the item that is "noSelectionLabel". When I select a valid entry inside the drop down, it works OK. But when we go back to resetting it by selecting the noSelectionLabel, it pops the following error.
Is this a bug?
<h:selectOneMenu id="actionSelected1" value="#{voiceMenus.actionSelected1}" > <a4j:support event="onchange" actionListener="#{voiceMenus.onDropdown1Change}" reRender="drop0" limitToList="true" ignoreDupResponses="true" ajaxSingle="true" /> <s:selectItems var="s_items0" value="#{voiceMenus.action}" noSelectionLabel="[Select Step]" /> </h:selectOneMenu> <a4j:outputPanel id="drop0" > <h:inputText value="#{voiceMenus.inputcustom1}" rendered="#{voiceMenus.iscustom1}"/> </a4j:outputPanel>
stack trace is as follows
javax.servlet.ServletException: /VoiceMenus.xhtml @177,68 actionListener="#{voiceMenus.onDropdown1Change}": javax.ejb.EJBTransactionRolledbackException at javax.faces.webapp.FacesServlet.service(FacesServlet.java:256) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:85) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) at org.j Caused by: javax.faces.el.EvaluationException: /VoiceMenus.xhtml @177,68 actionListener="#{voiceMenus.onDropdown1Change}": javax.ejb.EJBTransactionRolledbackException at com.sun.facelets.el.LegacyMethodBinding.invoke(LegacyMethodBinding.java:73) at javax.faces.component.UICommand.broadcast(UICommand.java:376) at org.ajax4jsf.component.AjaxActionComponent.broadcast(AjaxActionComponent.java:61) at org.ajax4jsf.component.AjaxViewRoot.processEvents(AjaxViewRoot.java:184) at org.ajax4jsf.component.AjaxViewRoot.broadcastEvents(AjaxViewRoot.java:162) at org.ajax4jsf.component.AjaxViewRoot.processApplication(AjaxViewRoot.java:350) at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:97) at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251) at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:244) ... 37 more Caused by: javax.ejb.EJBTransactionRolledbackException at org.jboss.ejb3.tx.Ejb3TxPolicy.handleInCallerTx(Ejb3TxPolicy.java:87) at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:130) at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:195) Caused by: java.lang.NullPointerException at com.iphonica.iattendant.portal.VoiceMenusBean.onDropdown1Change(VoiceMenusBean.java:787) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112) at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166) at org.jboss.seam.intercept.EJBInvocationContext.proceed(EJBInvocationContext.java:44) at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:56) at org.jboss.seam.transaction.RollbackInterceptor.aroundInvoke(RollbackInterceptor.java:31) at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) at org.jboss.seam.core.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:46) at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) at org.jboss.seam.core.ConversationInterceptor.aroundInvoke(ConversationInterceptor.java:65) at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68)