Argument Error: One or more parameters are null.

[Julien Martin]

Hello,
I get the following error:

javax.servlet.ServletException: javax.servlet.jsp.JspException: Argument Error: One or more parameters are null.

I use the Sun's RI (v 1.1) together with Jboss 4.0.3

Here is my backing bean:

package arcoiris;
 
import java.util.ArrayList;
import java.util.List;
import javax.faces.model.SelectItem;
 
public class SearchManagedBean {
    
    
    private String keyword;
    private String country;
    private int[] postcode;
    private boolean commmentExists;
    private int rating;
    private boolean websiteExists;
    
    //TEMP
    private List<SelectItem> availableCountries;
    private List<SelectItem> availablePostcodes;
    private List<SelectItem> availableRatings;
    
    public SearchManagedBean() {
        System.out.println("within constructor SearchManagedBean");
    }
    
    public String getKeyword() {
        return keyword;
    }
    
    public void setKeyword(String keyword) {
        this.keyword = keyword;
    }
    
    public String getCountry() {
        return country;
    }
    
    public void setCountry(String country) {
        this.country = country;
    }
    
   
    
    public boolean isCommmentExists() {
        return commmentExists;
    }
    
    public void setCommmentExists(boolean commmentExists) {
        this.commmentExists = commmentExists;
    }
    
    public int getRating() {
        return rating;
    }
    
    public void setRating(int rating) {
        this.rating = rating;
    }
    
    public boolean isWebsiteExists() {
        return websiteExists;
    }
    
    public void setWebsiteExists(boolean websiteExists) {
        this.websiteExists = websiteExists;
    }
    
    public List<SelectItem> getAvailableCountries() {
        List<SelectItem> countries = new ArrayList<SelectItem>();
        
        SelectItem si_1 = new SelectItem();
        SelectItem si_2 = new SelectItem();
        SelectItem si_3 = new SelectItem();
        
        si_1.setValue("ecuador");
        si_1.setLabel("ecuador");
        si_2.setValue("colombia");
        si_2.setLabel("colombia");
        si_3.setValue("peru");
        si_3.setLabel("peru");
        
        countries.add(si_1);
        countries.add(si_2);
        countries.add(si_3);
        return countries;
    }
    
    public void setAvailableCountries(List<SelectItem> countries) {
        this.availableCountries = availableCountries;
    }
    
    public List<SelectItem> getAvailablePostcodes() {
        List<SelectItem> postcodes = new ArrayList<SelectItem>();
        SelectItem si_1 = new SelectItem();
        SelectItem si_2 = new SelectItem();
        SelectItem si_3 = new SelectItem();
        
        si_1.setValue(75001);
        si_1.setLabel("75001");
        si_2.setValue(75002);
        si_2.setLabel("75002");
        si_3.setValue(75003);
        si_3.setLabel("75003");
        
        postcodes.add(si_1);
        postcodes.add(si_2);
        postcodes.add(si_3);
        
        return postcodes;
    }
    
    public void setAvailablePostcodes(List<SelectItem> availablePostcodes) {
        this.availablePostcodes = availablePostcodes;
    }
    
    public List<SelectItem> getAvailableRatings() {
        List<SelectItem> ratings = new ArrayList<SelectItem>();
        SelectItem si_1 = new SelectItem();
        SelectItem si_2 = new SelectItem();
        SelectItem si_3 = new SelectItem();
        
        si_1.setValue(1);
        si_1.setLabel("1");
        si_2.setValue(2);
        si_1.setLabel("2");
        si_3.setValue(3);
        si_1.setLabel("3");
        
        ratings.add(si_1);
        ratings.add(si_2);
        ratings.add(si_3);
        
        return ratings;
    }
    
    public void setAvailableRatings(List<SelectItem> availableRatings) {
        this.availableRatings = availableRatings;
    }
    
    public int[] getPostcode() {
        return postcode;
    }
 
    public void setPostcode(int[] postcode) {
        this.postcode = postcode;
    }
    
     public void performSearch(){
        System.out.println("here");
    }
 
   
    
    
}

Here is my jsp:

<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
 
<%@taglib prefix="f" uri="http://java.sun.com/jsf/core"%>
<%@taglib prefix="h" uri="http://java.sun.com/jsf/html"%>
 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
   "http://www.w3.org/TR/html4/loose.dtd">
    
         <html>
             <head>
                 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
                 <title>JSP Page</title>
             </head>
             <body>
                 <f:view>
                     f:loadBundle basename="arcoiris.resources.bundle" var="bundle"/
                     h:panelGroup id="body"
                         <h:form id="searchForm">
                             <h:outputText id="keywordLabel" value="enter keyword"/>    
                             <h:inputText id="keywordField" value="#{SearchManagedBean.keyword}"/>
          
                             <h:outputText id="countryLabel" value="choose country"/>    
                             <h:selectOneListbox id="countryField" value="#{SearchManagedBean.country}">
                                 <f:selectItems id="availableCountries" value="#{SearchManagedBean.availableCountries}"/>
                             </h:selectOneListbox>
                 
                             <h:outputText id="postcodeLabel" value="choose postcode(s)"/>    
                             <h:selectManyListbox id="postcodeField" value="#{SearchManagedBean.postcode}">
                                 <f:selectItems id="availablePostcodes" value="#{SearchManagedBean.availablePostcodes}"/>
                             </h:selectManyListbox>
                         
                             <h:outputText id="commentExistsLabel" value="with comment"/>
                             <h:selectOneRadio id="commentExistsField" value="#{SearchManagedBean.commmentExists}"/>
                         
                             <h:outputText id="ratingLabel" value="rating"/>
                             <h:selectOneListbox id="ratingField" value="#{SearchManagedBean.rating}">
                                 <f:selectItems id="availableRatings" value="#{SearchManagedBean.availableRatings}"/>
                             </h:selectOneListbox>
                         
                         
                             <h:outputText id="websiteExistsLabel" value="with website"/>
                             <h:selectOneRadio id="websiteExists" value="#{SearchManagedBean.websiteExists}"/>
 
                             <h:commandButton value="next" action="#{SearchManagedBean.performSearch}"/>
                 
          
                         </h:form>
                     /h:panelGroup
                 </f:view>
                       
             </body>
         </html>
     

Here is my DD:

<?xml version='1.0' encoding='UTF-8'?>
 

<!DOCTYPE faces-config PUBLIC
  "-//Sun Microsystems, Inc.//DTD JavaServer Faces Config 1.1//EN"
  "http://java.sun.com/dtd/web-facesconfig_1_1.dtd">
  
<faces-config>
    <managed-bean>
        <managed-bean-name>SearchManagedBean</managed-bean-name>
        <managed-bean-class>arcoiris.SearchManagedBean</managed-bean-class>
        <managed-bean-scope>request</managed-bean-scope>
    </managed-bean>
   
    
    <navigation-rule>
       <description></description>
        <from-view-id>/welcomeJSF.jsp</from-view-id>
        <navigation-case>
        <to-view-id>index.jsp</to-view-id>
        </navigation-case>
    </navigation-rule>
    
  
</faces-config>
 

exception report:

e Exception report
 
message
 
description The server encountered an internal error () that prevented it from fulfilling this request.
 
exception
 
javax.servlet.ServletException: javax.servlet.jsp.JspException: Erreur dans les arguments: Un ou plusieurs param�tres peuvent ''tre nuls.
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:844)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:781)
org.apache.jsp.welcomeJSF_jsp._jspService(org.apache.jsp.welcomeJSF_jsp:104)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322)
com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:130)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
 
root cause
 
java.lang.NullPointerException: Erreur dans les arguments: Un ou plusieurs param�tres peuvent ''tre nuls.
com.sun.faces.renderkit.html_basic.HtmlResponseWriter.writeText(HtmlResponseWriter.java:357)
com.sun.faces.renderkit.html_basic.MenuRenderer.renderOption(MenuRenderer.java:581)
com.sun.faces.renderkit.html_basic.MenuRenderer.renderOptions(MenuRenderer.java:525)
com.sun.faces.renderkit.html_basic.MenuRenderer.renderSelect(MenuRenderer.java:481)
com.sun.faces.renderkit.html_basic.MenuRenderer.encodeEnd(MenuRenderer.java:430)
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:720)
javax.faces.webapp.UIComponentTag.encodeEnd(UIComponentTag.java:623)
javax.faces.webapp.UIComponentTag.doEndTag(UIComponentTag.java:546)
com.sun.faces.taglib.html_basic.SelectOneListboxTag.doEndTag(SelectOneListboxTag.java:521)
org.apache.jsp.welcomeJSF_jsp._jspx_meth_h_selectOneListbox_1(org.apache.jsp.welcomeJSF_jsp:452)
org.apache.jsp.welcomeJSF_jsp._jspx_meth_h_form_0(org.apache.jsp.welcomeJSF_jsp:202)
org.apache.jsp.welcomeJSF_jsp._jspx_meth_f_view_0(org.apache.jsp.welcomeJSF_jsp:131)
org.apache.jsp.welcomeJSF_jsp._jspService(org.apache.jsp.welcomeJSF_jsp:92)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322)
com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:130)
com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)
com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
 
note The full stack trace of the root cause is available in the Apache Tomcat/5.5 logs.
Apache Tomcat/5.5

Can anyone help please? I am stuck and all I can say is that the exception report is not very helpful...

Thanks in advance,

Julien.
[ August 15, 2006: Message edited by: Julien Martin ]

[Tim Holloway]

com.sun.faces.taglib.html_basic.SelectOneListboxTag.doEndTag(SelectOneListboxTag.java:521)

This looked interesting. It might narrow the problem down to a specific part of the page.

Helpful hint: use the "id" attribute on your controls. Otherwise you get a useless randomly generated ID back in the error messages and it's much harder to locate the offending element.

I also started using Facelets, since one of their selling points was better JSF error messages. A nice bonus was it finally made Tiles useful to me!

[Julien Martin]

Hello,
The problem comes from here:

si_1.setValue(1);
        si_1.setLabel("1");
        si_2.setValue(2);
        si_1.setLabel("2");
        si_3.setValue(3);
        si_1.setLabel("3");

I keep resetting the label of si_1 instead of setting it for si_2 and si_3.

Julien.

[Rajibul islam]

I got this error..

Argument Error: Parameter text is null
java.lang.NullPointerException: Argument Error: Parameter text is null
at com.sun.faces.renderkit.html_basic.HtmlResponseWriter.writeText(HtmlResponseWriter.java:545)
at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlRendererUtils.renderSelectOptions(HtmlRendererUtils.java:443)

At last I find out I have one drop down that is populated by one list. but i saw that one item of that list itemLabel is null. every time it tries to render but it cant. so I suggest make sure your itemLabel may not set by null value. for addintional info i gave here sample code..

<td >
<t:selectOneMenu id="drpGroup" forceId="true" value="#{editStore.store.zoneNumber}" styleClass="inp">
<s:selectItems value="#{editStore.zoneList}"
var="zone" itemValue="#{zone.number}" itemLabel="#{zone.name}" />
</t:selectOneMenu>

make sure "#{zone.name}" never contain any null value for not getting this error.