JDeveloper 10.1.3.1 - injection works partiin embedded OC4J

Question

Hi,
there are a few simple examples which do not work under embedded OC4J:
Example #1:
public class ContextListener implements ServletContextListener {
@PersistenceUnit(unitName="myUnitName")
private EntityManagerFactory emf;
public ContextListener() {
System.out.println( "constructor" );
public void contextInitialized(ServletContextEvent event) {
System.out.println( "init: emf = " + emf );
When I run using embedded OC4J (testing servlet) - I see message 'constructor',
but then hothing happens - no message from contextInitialized(), no response
from servlet - IE displays 'page not found' message.
Example 2:
public class CatalogServlet extends HttpServlet {
@PersistenceUnit(unitName="myUnitName")
private EntityManagerFactory emf;
public CatalogServlet( ) {
System.out.println( "constructor" );
public void init() throws ServletException {
System.out.println( "Servlet init, emf = " + emf );
Here results are a bit different: I see 'contrustor' message, then exception
stack trace - and init() method of servlet did not get called.
Note that:
1) If instead of injecting EntityManagerFactory I try to inject session facade
bean (using @EJB) - this works both in listener and in servlet.
2) Injecting EntityManagerFactory works in my session facade bean,
using the same @PersistenceUnit(unitName="myUnitName").
3) Both examples above work well if I deploy application to WAR file
and then deploy that WAR file to GlassFish application server.
Is there something wrong with my code, or is there something wrong with
embedded OC4J? May be some settings for OC4J that I missed?
Regards, Leonid.

Answer 1

Hello,
It is a bug in the way the embedded OC4J is initializing the application.
You can deploy successfuly deploy/run in the stand alone OC4J, so could you please for this purpose use the standalone version.
Regards
Tugdual Grall