Hibernate JNDI

log4j:WARN No appenders could be found for logger (model.IgrejaHome).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" java.lang.IllegalStateException: Could not locate SessionFactory in JNDI
	at model.IgrejaHome.getSessionFactory(IgrejaHome.java:30)
	at model.IgrejaHome.<init>(IgrejaHome.java:22)
	at Teste.main(Teste.java:8)

<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
	<display-name>
	Curia</display-name>
	<servlet>
		<description>
		</description>
		<display-name>
		Teste</display-name>
		<servlet-name>Teste</servlet-name>
		<servlet-class>
		model.Teste</servlet-class>
	</servlet>
	<servlet-mapping>
		<servlet-name>Teste</servlet-name>
		<url-pattern>/Teste</url-pattern>
	</servlet-mapping>
	<welcome-file-list>
		<welcome-file>index.html</welcome-file>
		<welcome-file>index.htm</welcome-file>
		<welcome-file>index.jsp</welcome-file>
		<welcome-file>default.html</welcome-file>
		<welcome-file>default.htm</welcome-file>
		<welcome-file>default.jsp</welcome-file>
	</welcome-file-list>
	
</web-app>

public class IgrejaHome {

    private static final Log log = LogFactory.getLog(IgrejaHome.class);

    private final SessionFactory sessionFactory = getSessionFactory();
    
    protected SessionFactory getSessionFactory() {
        try {
            return (SessionFactory) new InitialContext().lookup("bunda");
        }
        catch (Exception e) {
            log.error("Could not locate SessionFactory in JNDI", e);
            throw new IllegalStateException("Could not locate SessionFactory in JNDI");
        }
    }