[jboss-user] [JBoss Seam] - s:selectItems + a4j:support = NullPointerException

I 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) | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4128245#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...