selectManyListbox - IllegalArgumentException

[leo donahue]

Using Sun RI of JSF 1.2

I keep getting the following error in the logs. What am I missing?

WARNING: executePhase(RENDER_RESPONSE 6,com.sun.faces.context.FacesContextImpl@114ef62) threw exception
java.lang.IllegalArgumentException: Expected a child component type of UISelectItem/UISelectItems for component type javax.faces.SelectMany(id1).  Found null.

JSP:

        <f:view>
            <h:form>
                <h:selectManyListbox id="id1" value="#{bean.tempItems}" size="10">
                    <f:selectItems id="id2" value="#{bean.tempList}"></f:selectItems>
                </h:selectManyListbox>
            </h:form>
        </f:view>

Code:

    private List tempList;
    private SelectItem[] tempItems;

    public List getTemplist() {
        return tempList;
    }

    public List getTempList() {
        return tempList;
    }

    public void setTempList(List tempList) {
        this.tempList = tempList;
    }

    public void setTempItems(SelectItem[] tempItems) {
        this.tempItems = tempItems;
    }

    public void doStuff(){
         tempList = new ArrayList();

         for(int i = 0; i < someStringArray.length; i++){
             tempList.add(new SelectItem(someStringArray[i]));
         }
    }

[leo donahue]

I figured it out.

Aside from my sample being wrong - can't paste in actual code so I was trying to modify it on the fly and messed that part up.

The issue for me was that I was trying to bind the value of the wrong Array to my h:selectManyListbox. I should have had another String [] to use instead of the tempItems SelectItem array.

Here is a cleaner sample.

package mypackage;

import java.util.ArrayList;
import java.util.List;
import javax.faces.model.SelectItem;

public class Options {

    private List<SelectItem> selectItems;
    private String [] temp = {"item 1","item 2","item 3","item 4","item 5"};
    private String [] items;


    public String doStuff() {
        setSelectItems((List<SelectItem>) new ArrayList());
        for (int i = 0; i < temp.length; i++) {
            selectItems.add(new SelectItem(temp[i], temp[i]));
        }
        return "started";
    }

    public List<SelectItem> getSelectItems() {
        return selectItems;
    }

    public void setSelectItems(List<SelectItem> selectItems) {
        this.selectItems = selectItems;
    }

    public String[] getTemp() {
        return temp;
    }

    public void setTemp(String[] temp) {
        this.temp = temp;
    }

    public String[] getItems() {
        return items;
    }

    public void setItems(String[] items) {
        this.items = items;
    }
}

JSP

            <h:form>
                <h:selectManyListbox id="smlbx" value="#{mybean.items}" >
                    <f:selectItems id="id2" value="#{mybean.selectItems}" />
                </h:selectManyListbox>
                <h:commandButton action="finished" value="Finished" />
            </h:form>