I have been trying to figure out how to deal with an ejb reference:
It is my undertanding that:
1. The ejb-jar.xml needs to have
ejb-name defined. In my case this is
<ejb-name>HelloWorld</ejb-name>
2. The jboss.xml (and I am not clear if this is necessary, though i want to
support clustering in the future and so cannot guarantee that everything will
be on the same server).
<ejb-name>HelloWorld</ejb-name>
<jndi-name>/tsm/HelloWorld</jndi-name>
<method-attributes>
</method-attributes>
3. The web.xml entry
<ejb-ref>
<ejb-ref-name>ejb/HelloWorld</ejb-ref-name>
<ejb-ref-type>Session</ejb-ref-type>
com.aptsi.applications.tsm.ejb.HelloWorldHome
com.aptsi.applications.tsm.ejb.HelloWorld
<ejb-link>HelloWorld</ejb-link>
</ejb-ref
4. The jboss-web.xml entry
<ejb-ref>
<ejb-ref-name>ejb/HelloWorld</ejb-ref-name>
<jndi-name>/tsm/HelloWorld</jndi-name>
</ejb-ref>
5. The code:
try
{
System.out.println("Testing ejb access - before
context lookup");
Context ctx = new InitialContext();
ctx = (Context)ctx.lookup("java:comp/env/ejb");
Object o = ctx.lookup("HelloWorld");
System.out.println("Testing ejb access - after
context lookup");
HelloWorldHome home = (HelloWorldHome)
PortableRemoteObject.narrow(o,
HelloWorldHome.class);
System.out.println("Testing ejb access - jndi
op complete");
// get the bean remote instance
//
try
{
System.out.println("Testing ejb access
- before create");
HelloWorld h = home.create();
System.out.println("EJB created, Need
to test ejb access");
System.out.println(h.helloWorld());
}
catch (javax.ejb.CreateException e)
{
System.out.println(e.getMessage());
}
catch (java.rmi.RemoteException e)
{
System.out.println(e.getMessage());
}
}
catch (javax.naming.NamingException e)
{
e.printStackTrace() ;
}
The stack trace is:
06:56:47,937 ERROR [STDERR] javax.naming.NamingException: Could not dereference
object [Root exception is javax.naming.NameNotFoundE
xception: tsm not bound]
06:56:47,937 ERROR [STDERR] at
org.jnp.interfaces.NamingContext.resolveLink(NamingContext.java:970)
06:56:47,937 ERROR [STDERR] at
org.jnp.interfaces.NamingContext.lookup(NamingContext.java:613)
06:56:47,937 ERROR [STDERR] at
org.jnp.interfaces.NamingContext.lookup(NamingContext.java:507)
06:56:47,937 ERROR [STDERR] at
com.aptsi.applications.tsm.web.servlets.frontcontroller.RegLogout.doProcess(Unknown
Source)
06:56:47,937 ERROR [STDERR] at
com.aptsi.applications.tsm.web.servlets.frontcontroller.RegLogout.doGet(Unknown
Source)
06:56:47,937 ERROR [STDERR] at
javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
06:56:47,937 ERROR [STDERR] at
javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
06:56:47,937 ERROR [STDERR] at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
06:56:47,937 ERROR [STDERR] at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
06:56:47,937 ERROR [STDERR] at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipelin
e.java:643)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipelin
e.java:643)
06:56:47,953 ERROR [STDERR] at
org.jboss.web.tomcat.security.JBossSecurityMgrRealm.invoke(JBossSecurityMgrRealm.java:220)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipelin
e.java:641)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:494)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipelin
e.java:641)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipelin
e.java:641)
06:56:47,953 ERROR [STDERR] at
org.jboss.web.tomcat.tc4.statistics.ContainerStatsValve.invoke(ContainerStatsValve.java:76)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipelin
e.java:641)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2417)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipelin
e.java:643)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:171)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipelin
e.java:641)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipelin
e.java:641)
06:56:47,953 ERROR [STDERR] at
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:65)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipelin
e.java:641)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:577)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipelin
e.java:641)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
06:56:47,953 ERROR [STDERR] at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipelin
e.java:643)
06:56:47,968 ERROR [STDERR] at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
06:56:47,968 ERROR [STDERR] at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
06:56:47,968 ERROR [STDERR] at
org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:197)
06:56:47,968 ERROR [STDERR] at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:781)
06:56:47,968 ERROR [STDERR] at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.
java:549)
06:56:47,968 ERROR [STDERR] at
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:605)
06:56:47,968 ERROR [STDERR] at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:677)
06:56:47,968 ERROR [STDERR] at java.lang.Thread.run(Thread.java:534)
06:56:47,968 ERROR [STDERR] Caused by: javax.naming.NameNotFoundException: tsm
not bound
06:56:47,968 ERROR [STDERR] at
org.jnp.server.NamingServer.getBinding(NamingServer.java:495)
06:56:47,968 ERROR [STDERR] at
org.jnp.server.NamingServer.getBinding(NamingServer.java:503)
06:56:47,968 ERROR [STDERR] at
org.jnp.server.NamingServer.getObject(NamingServer.java:509)
06:56:47,968 ERROR [STDERR] at
org.jnp.server.NamingServer.lookup(NamingServer.java:253)
06:56:47,968 ERROR [STDERR] at
org.jnp.interfaces.NamingContext.lookup(NamingContext.java:528)
06:56:47,968 ERROR [STDERR] at
org.jnp.interfaces.NamingContext.lookup(NamingContext.java:507)
06:56:47,968 ERROR [STDERR] at
javax.naming.InitialContext.lookup(InitialContext.java:347)
06:56:47,968 ERROR [STDERR] at
org.jnp.interfaces.NamingContext.resolveLink(NamingContext.java:964)
06:56:47,968 ERROR [STDERR] ... 47 more
06:56:49,718 INFO [STDOUT] the action is /logout.jsp
It looks like a JNDI naming issue. What do I need to do to fix this!.
Help!.
Nikhil
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