Error on Deploy - simple Struts + SLSB + PostGreSQL DS

Question

Hi,
I'm completly new to SOAS and J2EE, so I hope someone can help me on this.
I get the following error when I deploy my (first ever :P) .ear-file:
Deployment Error -- Error while running ejbc -- Fatal Error from EJB Compiler -- -- Failed to load deployment descriptor for: kvnet cause: Error converting J2EE-specific ejb xml to object representation: kvnet-ejbs.jar app_kvnet Test This bean has no resource reference by the name of [jdbc/QSMS-DB] jdbc/QSMS-DBjdbc/QSMS-DB
My EAR consists of two archives: a .war and kvnet-ejbs.jar with a session bean.
Description of Application:
I created a very simple Struts webapp (one servlet login filter and some .jsp`s) and already deployed the .war successfully (and run it). Now I want to add the EJB side to my application. I made a simple stateless Sessionbean which should simply connect to a PostGreSQL database through a connection pool (because after that I want to use cmp entity beans with this pool).
In my server.xml:
<resources>
<jdbc-resource enabled="true" pool-name="QSMSPool" jndi-name="jdbc/QSMS-DS">
<description>JDBC Resource des QSMS (zum Zugriff per JNDI)</description>
</jdbc-resource>
<jdbc-connection-pool steady-pool-size="8" max-pool-size="32" max-wait-time-in-millis="60000" pool-resize-quantity="2" idle-timeout-in-seconds="300" is-isolation-level-guaranteed="false" is-connection-validation-required="false" connection-validation-method="auto-commit" fail-all-connections="false" datasource-classname="org.postgresql.jdbc3.Jdbc3PoolingDataSource" name="QSMSPool">
<description>Connection Pool des QSMS der PostGreSQL DB</description>
<property value="bdrserv.quasa.org" name="serverName"/>
<property value="5432" name="portNumber"/>
<property value="appserver" name="user"/>
<property value="jS7v6X" name="password"/>
<property value="kvnet" name="databaseName"/>
</jdbc-connection-pool>
</resources>
My ejb-jar.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE ejb-jar PUBLIC '-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN' 'http://java.sun.com/dtd/ejb-jar_2_0.dtd'>
<ejb-jar>
<description>stateless session bean, mit dem die db-connection getestet werden soll</description>
<display-name>Test</display-name>
<enterprise-beans>
<session>
<description>test ejb fuer db-conn-test (postgresql)</description>
<display-name>TestEJB</display-name>
<ejb-name>TestEJB</ejb-name>
<local-home>de.quasa.kvnet.ejb.test.TestLocalHome</local-home>
<local>de.quasa.kvnet.ejb.test.TestLocal</local>
<ejb-class>de.quasa.kvnet.ejb.test.TestEJB</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Bean</transaction-type>
<ejb-local-ref>
<ejb-ref-name>ejb/Test</ejb-ref-name>
<ejb-ref-type>Session</ejb-ref-type>
<local-home>de.quasa.kvnet.ejb.test.TestLocalHome</local-home>
<local>de.quasa.kvnet.ejb.test.TestLocal</local>
<ejb-link>kvnet-ejbs.jar#TestEJB</ejb-link>
</ejb-local-ref>
<security-identity>
<description></description>
<use-caller-identity></use-caller-identity>
</security-identity>
<resource-ref>
<res-ref-name>QSMS-DS</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
<res-sharing-scope>Shareable</res-sharing-scope>
</resource-ref>
</session>
</enterprise-beans>
<assembly-descriptor>
<method-permission>
<unchecked />
<method>
<ejb-name>TestEJB</ejb-name>
<method-intf>LocalHome</method-intf>
<method-name>remove</method-name>
<method-params>
<method-param>java.lang.Object</method-param>
</method-params>
</method>
<method>
<ejb-name>TestEJB</ejb-name>
<method-intf>LocalHome</method-intf>
<method-name>create</method-name>
<method-params />
</method>
<method>
<ejb-name>TestEJB</ejb-name>
<method-intf>Local</method-intf>
<method-name>testConnection</method-name>
<method-params />
</method>
<method>
<ejb-name>TestEJB</ejb-name>
<method-intf>Local</method-intf>
<method-name>isIdentical</method-name>
<method-params>
<method-param>javax.ejb.EJBLocalObject</method-param>
</method-params>
</method>
<method>
<ejb-name>TestEJB</ejb-name>
<method-intf>Local</method-intf>
<method-name>getPrimaryKey</method-name>
<method-params />
</method>
<method>
<ejb-name>TestEJB</ejb-name>
<method-intf>Local</method-intf>
<method-name>remove</method-name>
<method-params />
</method>
<method>
<ejb-name>TestEJB</ejb-name>
<method-intf>Local</method-intf>
<method-name>getEJBLocalHome</method-name>
<method-params />
</method>
</method-permission>
</assembly-descriptor>
</ejb-jar>
My sun-ejb-jar.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sun-ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Sun ONE Application Server 7.0 EJB 2.0//EN" "http://www.sun.com/software/sunone/appserver/dtds/sun-ejb-jar_2_0-0.dtd">
<sun-ejb-jar>
     <enterprise-beans>
          <name>kvnet-ejbs.jar</name>
          <ejb>
               <ejb-name>TestEJB</ejb-name>
               <jndi-name>ejb/Test</jndi-name>
<resource-ref>
<res-ref-name>jdbc/QSMS-DB</res-ref-name>
<jndi-name>jdbc/QSMS-DB</jndi-name>
</resource-ref>
<gen-classes/>
          </ejb>
     </enterprise-beans>
</sun-ejb-jar>
My application.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE application PUBLIC '-//Sun Microsystems, Inc.//DTD J2EE Application 1.3//EN' 'http://java.sun.com/dtd/application_1_3.dtd'>
<application>
<display-name>kvnetapp</display-name>
<description>KVNetApp - Application description</description>
<module>
<ejb>kvnet-ejbs.jar</ejb>
</module>
<module>
<web>
<web-uri>kvnet.war</web-uri>
<context-root>web-app2</context-root>
</web>
</module>
</application>
My web.xml:
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
          "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
     <display-name>QSMS Application</display-name>
<!-- servletfilter and struts definitions are left out for better readability -->
     <ejb-local-ref>
          <description>TestEJB local ref</description>
          <ejb-ref-name>ejb/Test</ejb-ref-name>
          <ejb-ref-type>Session</ejb-ref-type>
          <local-home>de.quasa.kvnet.ejb.test.TestLocalHome</local-home>
          <local>de.quasa.kvnet.ejb.test.TestLocal</local>
<ejb-link>TestEJB</ejb-link>
     </ejb-local-ref>
</web-app>
My SLSB code:
public class TestEJB implements SessionBean {
public boolean testConnection() {
Connection con = null;
try {
InitialContext ctx = new InitialContext();
DataSource source = (DataSource)ctx.lookup("java:comp/env/jdbc/QSMS-DS");
con = source.getConnection();
// use connection
if (con == null) {
System.out.println("CONNECTION IS NULL!!!");
} catch (SQLException e) {
// log error
System.out.println("SQLException abgefangen: "+e.getMessage());
} catch (NamingException e) {
// DataSource wasn't found in JNDI
System.out.println("NamingException abgefangen: "+e.getMessage());
} finally {
if (con != null) {
try { con.close(); } catch (SQLException e) {}
return true;
public void ejbCreate() {}
public void ejbRemove() {}
public void ejbActivate() {}
public void ejbPassivate() {}
public void setSessionContext(SessionContext ctx) {}
public interface TestLocal extends EJBLocalObject {
public boolean testConnection();
public interface TestLocalHome extends EJBLocalHome {
TestLocal create() throws CreateException;
I hope I made myself clear. :-)
Thanks for your help.
Regards,
Steffen Gransow

Answer 1

I have a little more information. I noticed that the stderr from the server apparently had the stack trace of the exception, which follows this. In addition, I'll include the application's "application.xml" file (not Oracle-specific).
---application.xml---
<?xml version="1.0"?>
<!DOCTYPE application PUBLIC
"-//Sun Microsystems, Inc.//DTD J2EE Application 1.3//EN"
"http://java.sun.com/dtd/application_1_3.dtd">
<application>
<display-name>FELIX</display-name>
<!--
<module>
<ejb>felix-ejb.jar</ejb>
</module>
-->
<module>
<web>
<web-uri>felix-web.war</web-uri>
<context-root>/felix</context-root>
</web>
</module>
</application>
---application.xml---
---server stderr---
ApplicationServer: appName = Felix
java.lang.NullPointerException: application reference's config was null
     at com.evermind.server.ApplicationServer.getApplication(ApplicationServer.java:1976)
     at com.evermind.server.XMLApplicationServerConfig.initHttp(XMLApplicationServerConfig.java:1365)
     at com.evermind.server.ApplicationServer.doCheckForUpdates(ApplicationServer.java:2308)
     at com.evermind.server.ApplicationServer.checkForUpdates(ApplicationServer.java:2117)
     at com.evermind.server.ApplicationServerTask.run(ApplicationServerTask.java:46)
     at com.evermind.util.TaskManager.run(TaskManager.java:133)
     at com.evermind.util.ThreadPoolThread.run(ThreadPoolThread.java:66)
---server stderr---