users@jersey.java.net

NullPointerException

From: Roan Brasil Monteiro <roanbrasil_at_gmail.com>
Date: Fri, 23 Oct 2009 12:20:05 -0200

Hello,

I got the Bookmark example, it has jersey e JPA integrate, I would like to
add EJB lib, and I did. My question is, do I need to set up the web.xml
file? What should I add? Currently my web.xml is like bellow. Do I need to
configure something else? I am getting NullPointerException when I made my
BaseDAOImpl with @Stateless anotation implementing a @Remote interface
BaseDAO and on the BaseDAOImpl I am injecting with @PersistenceUnit on
EntityManagerFactory, but I am getting NullPointerException, can someone
help me please? P.S.-> My Resource class is calling the BaseDAOImpl.

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="
http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="
http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
    <servlet>
        <servlet-name>Jersey Web Application</servlet-name>

<servlet-class>com.sun.jersey.server.impl.container.servlet.ServletAdaptor</servlet-class>
        <init-param>
            <param-name>com.sun.jersey.config.feature.Redirect</param-name>
            <param-value>true</param-value>
        </init-param>
        <init-param>
            <param-name>unit:citespacePU</param-name>
            <param-value>persistence/citespace</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>Jersey Web Application</servlet-name>
        <url-pattern>/resources/*</url-pattern>
    </servlet-mapping>
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
    <welcome-file-list>
    <welcome-file>
            index.jsp
        </welcome-file>
    </welcome-file-list>
    <persistence-unit-ref>

<persistence-unit-ref-name>persistence/citespace</persistence-unit-ref-name>
        <persistence-unit-name>citespacePU</persistence-unit-name>
    </persistence-unit-ref>
    <resource-ref>
        <res-ref-name>UserTransaction</res-ref-name>
        <res-type>javax.transaction.UserTransaction</res-type>
        <res-auth>Container</res-auth>
    </resource-ref>
 </web-app>


-- 
Atenciosamente,
Roan Brasil Monteiro
http://roanbrasil.wordpress.com/