Hi,

I am having some problems with using a
Code:

<f:selectItems>  

element inside
Code:

<h:selectOneMenu>

.

To start off I created a Jbpm4Jsf tag/class that loads up a list of users, which I have tried to put into a Map and now a List. I return this Map/List as the target inside the page and then place the target as the SelectItems value.

Please see code below

Code:

<ga:responseActions>
   <id:listProjectLeaders target="#{plList}"/>
</ga:responseActions>

      <jbpm:datacell>
        <f:facet name="header">
                <h:outputText value="Supervisor"/>
        </f:facet>
        <h:selectOneMenu value="#{var['potentialsupervisor']}">
                <f:selectItems value="#{academics}"/>
        </h:selectOneMenu>
<!--         <h:inputText value="#{var['potentialsupervisor']}"/>-->
      </jbpm:datacell>
       



However, when I submit my form, it throws a bunch of exceptions
Code:

javax.servlet.ServletException
        javax.faces.webapp.FacesServlet.service(FacesServlet.java:256)
        org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)


root cause

java.lang.IllegalArgumentException
        javax.faces.component.SelectItemsIterator.next(SelectItemsIterator.java:166)
        javax.faces.component.SelectItemsIterator.next(SelectItemsIterator.java:49)
        javax.faces.component.UISelectOne.matchValue(UISelectOne.java:165)
        javax.faces.component.UISelectOne.validateValue(UISelectOne.java:137)
        javax.faces.component.UIInput.validate(UIInput.java:868)
        javax.faces.component.UIInput.executeValidate(UIInput.java:1071)
        javax.faces.component.UIInput.processValidators(UIInput.java:663)
        javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1021)
        javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1021)
        javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1021)
        javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1021)
        javax.faces.component.UIForm.processValidators(UIForm.java:229)
        javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1021)
        javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1021)
        javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1021)
        javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:662)
        com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:100)
        com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:248)
        com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:117)
        javax.faces.webapp.FacesServlet.service(FacesServlet.java:244)
        org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)

       



The tag/class I use to list all the academics is the following
Code:

public final class ListAcademicsActionListener implements JbpmActionListener {
    private final ValueExpression targetExpression;

    public ListAcademicsActionListener(final ValueExpression targetExpression) {
        this.targetExpression = targetExpression;
    }

    public String getName() {
        return "listAcademics";
    }

    @SuppressWarnings ({"unchecked"})
    public void handleAction(JbpmJsfContext context, ActionEvent event) {
        try {
            final FacesContext facesContext = FacesContext.getCurrentInstance();
            final ELContext elContext = facesContext.getELContext();
            final Collection<SelectItem> academicsList = new Vector<SelectItem>();
... //queries DB some academics names and their userID

            while(academics.next()){
               SelectItem academic = new SelectItem(lecturerLogin, lecturer);
               academicsList.add(academic);
            }
            targetExpression.setValue(elContext, Collections.unmodifiableCollection(academicsList));

            context.selectOutcome("success");
         }
       



So far all the lecturer's names and logins come up fine, but the problem is when I submit the form. I've searched around and there seems to be similar problems, but never quite the same. Any help is appreciated.

Thanks
--Mansingh Shitole