[jboss-user] [EJB 3.0] - Is annotation enough for deploying a session bean?
Hi,
I am using jboss-4.2.3.GA with Java 5. I have created a session bean like this:
@Stateless
| @Local( { MyBeanInterface.class })
| public class MyBean implements MyBeanLocal, MyBeanInterface {
| ...
|
| }
|
Also created a servlet like this:
public class MyServlet extends HttpServlet {
| private static final long serialVersionUID = 1L;
|
| @EJB
| private MyBean myBean;
|
| public void service(HttpServletRequest request,
| HttpServletResponse response) throws ServletException, IOException {
| System.out.println("the servlet MyServlet has been invoked");
| if (myBean == null) {
| System.out.println("myBean is NULL");
| } else {
| System.out.println("myBean is not NULL");
| }
| ...
| }
|
| ...
|
| }
|
I put everything in an ear file and deployed it in the server. When I try to invoke the
servlet it complains that the bean has not been properly injected into the servlet. Here
is the log on the server:
anonymous wrote : 14:38:02,568 INFO [EARDeployer] Init J2EE application:
file:/C:/jboss-4.2.3.GA/server/jms/deploy/myEnterpriseProject.ear
| 14:38:04,928 INFO [JmxKernelAbstraction] creating wrapper delegate for:
org.jboss.ejb3.stateless.StatelessContainer
| 14:38:04,936 INFO [JmxKernelAbstraction] installing MBean:
jboss.j2ee:ear=myEnterpriseProject.ear,jar=myEjbProject.jar,name=MyBean,
| service=EJB3 with dependencies:
| 14:38:04,959 INFO [EJBContainer] STARTED EJB: myPackage.MyBean ejbName: MyBean
| 14:38:10,958 INFO [EJB3Deployer] Deployed:
file:/C:/jboss-4.2.3.GA/server/jms/tmp/deploy/tmp38195myEnterpriseProject.ear-contents/m
| yEjbProject.jar
| 14:38:11,067 INFO [TomcatDeployer] deploy, ctxPath=/abc,
warUrl=.../tmp/deploy/tmp38195myEnterpriseProject.ear-contents/myDynamicWe
| bProject-exp.war/
| 14:38:13,172 INFO [EARDeployer] Started J2EE application:
file:/C:/jboss-4.2.3.GA/server/jms/deploy/myEnterpriseProject.ear
| 14:38:23,255 INFO [STDOUT] myBean is NULL
| 14:38:23,257 ERROR [[MyServlet]] Servlet.service() for servlet MyServlet threw
exception
| java.lang.NullPointerException
| at myServletPackage.MyServlet.service(MyServlet.java:115)
| at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
| at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
| at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
| at
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
| at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
| at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
| at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
| at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
| at
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
| at
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
| at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
| at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
| at
org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
| at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
| at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
| at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
| at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
| at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
| at java.lang.Thread.run(Thread.java:619)
|
| I can see MyBean starting but it is not in the servlet. Do I still need to create the
deployment ejb-jar.xml file for the jar file containing the bean? I thought the annotation
would do the job for the trivial case.
I would appreciate any suggestion.
Thanks.
Dan
View the original post :
http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4176280#...
Reply to the post :
http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...