Hi,
I`m new to J2EE. I installed JBoss and would like to run a console example
(source code of all classes provided below). I succesfuly compiled, packaged
and deployed on JBoss but when running HelloWorldClient from console I get
the following messages.
1. when looking up "java:comp/env/ejb/HelloWorld"
Exception: comp not bound
OR
2. when looking up ""ejb/HelloWorld"
java.lang.NoClassDefFoundError:
Lorg/jboss/tm/TransactionPropagationContextFactory;
at
java.lang.Class.getDeclaredFields0(Native Method)
at
java.lang.Class.privateGetDeclaredFields (
Class.java:1514)
at
java.lang.Class.getDeclaredField (
Class.java:1206)
at
java.io.ObjectStreamClass.getDeclaredSUID (
ObjectStreamClass.java:1474)
at
java.io.ObjectStreamClass.access$400(ObjectStreamClass.java:47)
at
java.io.ObjectStreamClass$3.run(ObjectStreamClass.java:335)
at
java.security.AccessController.doPrivileged(Native Method)
at java.io.ObjectStreamClass.<init>(ObjectStreamClass.java:333)
at
java.io.ObjectStreamClass.lookup (
ObjectStreamClass.java:253)
at
java.io.ObjectStreamClass.initNonProxy (
ObjectStreamClass.java:453)
at
java.io.ObjectInputStream.readNonProxyDesc (
ObjectInputStream.java:1521)
at
java.io.ObjectInputStream.readClassDesc (
ObjectInputStream.java:1435)
at
java.io.ObjectInputStream.readOrdinaryObject (
ObjectInputStream.java:1626)
at
java.io.ObjectInputStream.readObject0 (
ObjectInputStream.java:1274)
at
java.io.ObjectInputStream.readObject (
ObjectInputStream.java:324)
at
java.util.HashMap.readObject (
HashMap.java:1006)
at
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke (
NativeMethodAccessorImpl.java:39
)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl
.java:25)
at
java.lang.reflect.Method.invoke (
Method.java:324)
at
java.io.ObjectStreamClass.invokeReadObject (
ObjectStreamClass.java:838)
at
java.io.ObjectInputStream.readSerialData (
ObjectInputStream.java:1746)
at
java.io.ObjectInputStream.readOrdinaryObject (
ObjectInputStream.java:1646)
at
java.io.ObjectInputStream.readObject0 (
ObjectInputStream.java:1274)
at
java.io.ObjectInputStream.defaultReadFields (
ObjectInputStream.java:1845)
at
java.io.ObjectInputStream.readSerialData (
ObjectInputStream.java:1769)
at
java.io.ObjectInputStream.readOrdinaryObject (
ObjectInputStream.java:1646)
at
java.io.ObjectInputStream.readObject0 (
ObjectInputStream.java:1274)
at
java.io.ObjectInputStream.readObject (
ObjectInputStream.java:324)
at
org.jboss.proxy.ClientContainer.readExternal (
ClientContainer.java:112)
at
java.io.ObjectInputStream.readExternalData (
ObjectInputStream.java:1686)
at
java.io.ObjectInputStream.readOrdinaryObject (
ObjectInputStream.java:1644)
at
java.io.ObjectInputStream.readObject0 (
ObjectInputStream.java:1274)
at
java.io.ObjectInputStream.defaultReadFields (
ObjectInputStream.java:1845)
at
java.io.ObjectInputStream.readSerialData (
ObjectInputStream.java:1769)
at
java.io.ObjectInputStream.readOrdinaryObject (
ObjectInputStream.java:1646)
at
java.io.ObjectInputStream.readObject0 (
ObjectInputStream.java:1274)
at
java.io.ObjectInputStream.readObject (
ObjectInputStream.java:324)
at
java.rmi.MarshalledObject.get (
MarshalledObject.java:135)
at
org.jnp.interfaces.MarshalledValuePair.get (
MarshalledValuePair.java:30)
at
org.jnp.interfaces.NamingContext.lookup (
NamingContext.java:550)
at
org.jnp.interfaces.NamingContext.lookup (
NamingContext.java:507)
at
javax.naming.InitialContext.lookup (
InitialContext.java:347)
at
com.mastertech.sample.HelloWorldClient.main(HelloWorldClient.java:23)
Exception in thread "main"
When deploying JBoss says:
08:56:22,062 INFO [MainDeployer] Starting deployment of package:
file:/D:/JBoss/server/default/deploy/HelloApp.ear
08:56:22,078 INFO [EARDeployer] Init J2EE application:
file:/D:/JBoss/server/default/deploy/HelloApp.ear
08:56:22,718 INFO [EjbModule] Deploying HelloWorld
08:56:22,828 INFO [StatelessSessionInstancePool] Started
jboss.j2ee:jndiName=ejb/HelloWorld,plugin=pool,service=EJB
08:56:22,843 INFO [StatelessSessionContainer] Started
jboss.j2ee:jndiName=ejb/HelloWorld,service=EJB
08:56:22,843 INFO [EjbModule] Started
jboss.j2ee:module=HelloEJB.jar,service=EjbModule
08:56:22,843 INFO [EJBDeployer] Deployed:
file:/D:/JBoss/server/default/tmp/deploy/tmp43628HelloApp.ear-contents/Hello
EJB.jar
08:56:22,875 INFO [EARDeployer] Started J2EE application:
file:/D:/JBoss/server/default/deploy/HelloApp.ear
08:56:22,875 INFO [MainDeployer] Deployed package:
file:/D:/JBoss/server/default/deploy/HelloApp.ear
I do not uderstand this because in J2EE spec there is writen that when
deploing EJB it is deployed in the namespace "java:comp/env/ejb" and it
seems it is not there.
Questions:
1. could somebody explain me in what namespace look for the HelloWorld ejb
and why.
2. could somebody explain me how to make that example work and why it
doesn`t work now
Thanks a lot for help and sorry for long mail.
Regards Robert
>file: HelloWorld -----------------------------------------
package com.mastertech.sample;
public interface HelloWorld extends
javax.ejb.EJBObject {
public String hello() throws
java.rmi.RemoteException;
}
>file: HelloWorldHome -------------------------------------
package com.mastertech.sample;
public interface HelloWorldHome extends
javax.ejb.EJBHome {
HelloWorld create() throws
java.rmi.RemoteException,
javax.ejb.CreateException;
}
>file: HelloWorldBean -------------------------------------
package com.mastertech.sample;
import
javax.ejb.SessionContext;
public class HelloWorldBean implements
javax.ejb.SessionBean {
private SessionContext ctx;
public HelloWorldBean() {}
public void ejbActivate() throws
javax.ejb.EJBException,
java.rmi.RemoteException {}
public void ejbCreate() throws
javax.ejb.EJBException,
java.rmi.RemoteException {}
public void ejbPassivate() throws
javax.ejb.EJBException,
java.rmi.RemoteException {}
public void ejbRemove() throws
javax.ejb.EJBException,
java.rmi.RemoteException {}
public void setSessionContext(
javax.ejb.SessionContext ctx) {
this.ctx = ctx;
}
public String hello() {
System.out.println("hello()");
return "Hello World!";
}
}
>file: HelloWorldClient -----------------------------------
package com.mastertech.sample;
import
javax.naming.Context;
import
javax.naming.InitialContext;
import java.util.*;
public class HelloWorldClient {
public HelloWorldClient() {
}
public static void main(String[] args) {
Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY,
"
org.jnp.interfaces.NamingContextFactory");
env.put(Context.PROVIDER_URL, "jnp://localhost:1099");
env.put("java.naming.factory.url.pkgs",
"org.jboss.naming:org.jnp.interfaces");
try {
Context ctx = new InitialContext(env);
System.out.println("1");
Object obj = ctx.lookup("java:comp/env/ejb/HelloWorld");
System.out.println("2");
HelloWorldHome home =
(HelloWorldHome)
javax.rmi.PortableRemoteObject.narrow(obj,
HelloWorldHome.class);
HelloWorld helloWorld = home.create();
System.out.println ( helloWorld.hello() );
helloWorld.remove();
} catch (Exception e) {
//e.printStackTrace();
System.out.println( "Exception: " + e.getMessage() );
}
}
}
>file: 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>JBoss Hello World Application</description>
<display-name>Hello World EJB</display-name>
<enterprise-beans>
<session>
<ejb-name>HelloWorld</ejb-name>
<home>com.mastertech.sample.HelloWorldHome</home>
<remote>com.mastertech.sample.HelloWorld</remote>
<ejb-class>com.mastertech.sample.HelloWorldBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Bean</transaction-type>
</session>
</enterprise-beans>
</ejb-jar>
>file: 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>Sum Application</display-name>
<module>
<ejb>HelloEJB.jar</ejb>
</module>
</application>
>file: jboss.xml -------------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE jboss PUBLIC "-//JBoss//DTD JBOSS 3.2//EN"
"http://www.jboss.org/j2ee/dtd/jboss_3_2.dtd">
<jboss>
<enterprise-beans>
<session>
<ejb-name>HelloWorld</ejb-name>
<jndi-name>ejb/HelloWorld</jndi-name>
<method-attributes>
</method-attributes>
</session>
</enterprise-beans>
<resource-managers>
</resource-managers>
</jboss>
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