Cant find the error, please help

Question

Hi, everyone,
My environment, is eclipse3.2.1 Tomcat5.5 JSF 1.1, everything seen working well until I change a property in my bean (let called �LIC3310�). I have an array of selectItem(let called �catItem�) in the bean gonna use
<f:selectItems value=#{LIC3310.catItem}>
to output it. In this array, I use integer as its itemValue (before, I use a String as its itemValue, but now I want to change it to integer and I have change all the getter and setter as well) and a String as its itemLabel. I put followed code in my page
<h:selectOneMenu value="#{LIC3330.currentCat}">
<f:selectItems value="#{LIC3330.catItem}"/>
</h:selectOneMenu>
I�m sure embedded this code between view tag and form tag.
<f: view> <h:form> <--! Code is here --></h:form></f:view>
But when I load into this page, it didn�t show me anything, and when I try to reload it, It show me some error messages as below:
javax.servlet.ServletException: Cannot get value for expression '#{LIC3330.currentCat}'
     javax.faces.webapp.FacesServlet.service(FacesServlet.java:152)
     org.apache.myfaces.webapp.MyFacesServlet.service(MyFacesServlet.java:74)
root cause
javax.faces.el.EvaluationException: Cannot get value for expression '#{LIC3330.currentCat}'
     org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:402)
     javax.faces.component.UIOutput.getValue(UIOutput.java:77)
     javax.faces.component.UIInput.validate(UIInput.java:357)
     javax.faces.component.UIInput.processValidators(UIInput.java:183)
     javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:624)
     javax.faces.component.UIForm.processValidators(UIForm.java:70)
     javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:624)
     javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:146)
     org.apache.myfaces.lifecycle.LifecycleImpl.processValidations(LifecycleImpl.java:262)
     org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:76)
     javax.faces.webapp.FacesServlet.service(FacesServlet.java:137)
     org.apache.myfaces.webapp.MyFacesServlet.service(MyFacesServlet.java:74)
This problem is annoying me serial days I �m so appreciated if anyone can help.
thank you so much,
emmy.ma

Answer 1

hi,
thanks, i have done it, it is my orIginal bean
package sources.bean;
import javax.faces.model.*;
import javax.faces.context.*;
import java.util.*;
public class LIC3330 {
     private SelectItem[] catItem;
     private String[] ramoCode;
     private int currentCat;
     final String USER = "aspnet4sql";
     final String PASSWORD = "sql2aspnet";
     public LIC3330() {
          FacesContext context = FacesContext.getCurrentInstance();
          ExternalContext app = context.getExternalContext();
          Map sessionMap = app.getSessionMap();
          Map ramoNameMap = (Map) sessionMap.get("ramoNameMap");
          Vector ramoCodeVec = (Vector) sessionMap.get("ramoCodeVec");
          catItem = new SelectItem[ramoNameMap.size()];
          ramoCode = new String[ramoNameMap.size()];
          for (int i = 0; i < ramoNameMap.size(); i++) {
               String ramoName = (String) ramoNameMap.get(ramoCodeVec.get(i));
               String rc = (String) ramoCodeVec.get(i);
               ramoCode[i] = rc;
               catItem[i] = new SelectItem(i, ramoName);
     public int getCurrentCat() {
          return currentCat;
     public void setCurrentCat(int currentCat) {
          this.currentCat = currentCat;
     public SelectItem[] getCatItem() {
          return catItem;
and the constructor is sure work, coz i use in the other bean, it work well, although i remove the constructor here, it show me an empty page without any error message. i'm really doubt of it.
emmy.ma