javax.el.PropertyNotFoundException

This is my bean class:

package org.domain.bazaznanja.session;

import javax.ejb.Remove;
import javax.ejb.Stateful;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;

import org.domain.bazaznanja.entity.Person;
import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.Destroy;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Scope;

@Stateful
@Name("myBeanClass")
@Scope(ScopeType.SESSION)
public class MyBeanAction implements MyBean{

@In(required = false)
	private Person myPerson;

@PersistenceContext
	private EntityManager em;
	
	private boolean checkBox;

public boolean isCheckBox() {
		return checkBox;
	}

public void setCheckBox(boolean checkBox) {
		this.checkBox = checkBox;
	}

public Person getMyPerson() {
		return myPerson;
	}

public void setMyPerson(Person myPerson) {
		this.myPerson = myPerson;
	}

public EntityManager getEm() {
		return em;
	}

public void setEm(EntityManager em) {
		this.em = em;
	}

public String LoginAction() {
		String izlaz = "failure";
		Person person1 = null;
		Query query = getEm()
				.createQuery(
						"select p from Person p where p.username=#{myPerson.username} " +
						"and p.password=#{myPerson.password}");
		try {
			person1=(Person)query.getSingleResult();
		} catch (Exception e) {
			// TODO Auto-generated catch block
			
		}
		if(person1!=null)
			{
				this.myPerson=person1;
				izlaz="success";
				if(this.isCheckBox())
				{
					
				}
			}
		return izlaz;
	}

public boolean GetRememberMe()
	{
		return this.isCheckBox();
	}

@Remove
	@Destroy
	public void Destroy() {

}
}

and this is my login page:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<f:view xmlns="http://www.w3.org/1999/xhtml"
	xmlns:ui="http://java.sun.com/jsf/facelets"
	xmlns:f="http://java.sun.com/jsf/core"
	xmlns:h="http://java.sun.com/jsf/html"
	xmlns:a="http://richfaces.org/a4j"
	xmlns:rich="http://richfaces.org/rich"
	xmlns:s="http://jboss.com/products/seam/taglib" contentType="text/html">
	<html>
	<head>
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
	<title>Baza_znanja</title>

<a:loadStyle src="/stylesheet/main.css" />

</head>
	<body bgcolor="#0000CC">
	<div id="main_body">

<div id="site_logo"><img src="img/logo.png" /></div>
	<div id="links">
	<table align="center">
		<tr>
			<td>
			<div id="link_item"><h:outputLink value="conferences.seam">Konferencije</h:outputLink></div>
			</td>
			<td>
			<div id="link_item"><h:outputLink value="trainings.seam">Treninzi</h:outputLink></div>
			</td>
			
		</tr>

</table>
	</div>
	
	<div id="login_panel">
<div align="center">
<h:form id="login_form">
<h:panelGrid columns="2" style="border: 1px;border-style: solid">
	<f:facet name="header">h:o<h:outputText value="Logovanje" /></f:facet>
	<h:outputText value="Korisničko ime: " />
	<h:inputText value="#{myPerson.username}" id="username"/>
	<h:outputText value="Šifra: " />
	<h:inputSecret value="#{myPerson.password}" id="password" />
	<div align="right"><h:selectBooleanCheckbox value="#{myBeanClass.checkBox}" /></div>
	<h:outputText value="Remember me" /> 
	
</h:panelGrid>
<h:commandButton action="#{myBeanClass.LoginAction}" value="Login" />
</h:form>
</div>
	</div>

</div>
	</body>
	</html>
</f:view>

When I try to open login page,this exception occurs:
[qoute]
javax.el.PropertyNotFoundException: /login.xhtml @49,80 value="#{myBeanClass.checkBox}": Property 'checkBox' not found on type org.javassist.tmp.java.lang.Object_$$_javassist_seam_2

Help please!

Try:

public boolean getCheckBox() {
return checkBox;
}

I have that kind of function,it's called GetRememberMe().I tried to use it in login.xhtml (#{myBeanClass.GetRememberMe} and #{myBeanClass.GetRememberMe()}) but without successs.

You need to use the proper naming access format:

#{myBeanClass.rememberMe}

public boolean getRememberMe()
{
return this.isCheckBox();
}

Lincoln is right... this solves the problem

try to use #{myBeanClass.rememberMe} in your JSF file, and remember the case sensitivity... (check 'r' of remeberMe is small in JSF file)

put the following function in your Managed Bean class

public boolean getRememberMe()
{
return this.isCheckBox();
}

I added that method but the setter one was also needed:

for this to work.Thanks a lot for your help!!!

P.S. Just for further usage,if I would like to have another check box for some other purpose rather than remembering the certain user,what would I have to set as a value attribute since I've user myBeanClass.rememberMe?

I am having the similar problem.
The trouble is that all my entities are generated automatically. Is there no alternative for this wiring ?