Deploying EJB Problems

[digitalkid]

Hello, I downloaded jboss-4.0.1RC1 zip module. After installing it and running it I verified the Jboss with http://localhost:8080/ in the explorer on my IBM PC running XP. It does bring me to Jboss web page which tells me that installation is successful. I tried with 3 simple classes and an ejb-xml.jar. Packaged it by creating a jar of those three classes and ejb-jar.xml also created META-INF directory and placed ejb-jar.xml in it. I copied the packaged jar in server/default/deploy directory. I don?t see any thing on the Jboss server screen for accepting the ejb and launching the ejb. It still says started 00m.00s.00ms. But when I tried to delete the pacakaged jar from the deploy directory Jboss server says ejb will be deleted next time the server starts. I am not connected to the internet but am within my network. I can ping the machine.

I wish that start guide gave a simpler example without ant. Other suggestion would be to provide a test ejb that we could verify the operation of the Jboss itself.

Please help me in identifying the problem.

[mario202]

Hi
Did you also define a jboss.xml file in you META-INF directory next to the ejb-jar.xml?

Maybe for a starting-point the JBoss-IDE provides a good sample EAR-Application:
http://sf.gds.tuwien.ac.at/j/jb/jboss/Tutorial-1.3.0.pdf

[digitalkid]

Hi mario202,

Yes I tried with Jboss.xml too. Still the problem is same. Here what I am doing.

Microsoft Windows XP [Version 5.1.2600]
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.


C:\>javac -classpath C:\jboss-4.0.1\server\default\lib\jboss-j2ee.jar Simple.java

C:\>javac -classpath C:\jboss-4.0.1\server\default\lib\jboss-j2ee.jar;. SimpleHome.java

C:\>javac -classpath C:\jboss-4.0.1\server\default\lib\jboss-j2ee.jar;. SimpleBean.java

C:\>jar cfv Simple.jar \META-INF\

C:\>jar cfv Simple.jar Simple.class SimpleHome.class SimpleBean.class C:\META-INF\
added manifest
adding: Simple.class(in = 217) (out= 171)(deflated 21%)
adding: SimpleHome.class(in = 242) (out= 177)(deflated 26%)
adding: SimpleBean.class(in = 1096) (out= 566)(deflated 48%)
adding: C:/META-INF/(in = 0) (out= 0)(stored 0%)
adding: C:/META-INF/ejb-jar.xml(in = 489) (out= 226)(deflated 53%)

C:\>jar tf simple.jar
META-INF/
META-INF/MANIFEST.MF
Simple.class
SimpleHome.class
SimpleBean.class
C:/META-INF/
C:/META-INF/ejb-jar.xml

After compiling and Jaring The directory and files looks like this

C:\>dir Simple*.*
Volume in drive C has no label.
Volume Serial Number is 148B-EBDE

Directory of C:\

01/28/2005 04:53 AM 217 Simple.class
01/28/2005 04:56 AM 2,087 Simple.jar
01/27/2005 11:25 PM 144 Simple.java
01/28/2005 04:53 AM 1,096 SimpleBean.class
01/27/2005 11:25 PM 848 SimpleBean.java
01/28/2005 04:53 AM 242 SimpleHome.class
01/27/2005 11:25 PM 221 SimpleHome.java
7 File(s) 4,855 bytes
0 Dir(s) 13,099,388,928 bytes free

C:\>cd meta-inf

C:\META-INF>dir /p
Volume in drive C has no label.
Volume Serial Number is 148B-EBDE

Directory of C:\META-INF

01/27/2005 11:27 PM .
01/27/2005 11:27 PM ..
01/27/2005 11:27 PM 489 ejb-jar.xml
01/28/2005 10:02 AM 291 jboss.xml
2 File(s) 780 bytes
2 Dir(s) 13,095,940,096 bytes free

C:\META-INF>


Souce Code Listings

Simple.java looks like this

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
import java.rmi.*;
import javax.ejb.*;

public interface Simple extends EJBObject {
public String getMessage() throws RemoteException;
}
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++




SimpleBean.java looks like this

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
import java.rmi.*;
import javax.ejb.*;

public class SimpleBean implements SessionBean {
private SessionContext context;
private int SaidCount = 0;
// This is the business method.
public String getMessage() throws RemoteException {
String thisMessage = ++SaidCount + ": EJB SimpleBean - Yahoo!";
return thisMessage;
}
// These are the callback methods, which come from the
// SessionBean interface.
public void ejbCreate() throws RemoteException, CreateException {
}
public void ejbRemove() throws RemoteException {
}
public void ejbActivate() throws RemoteException {
}
public void ejbPassivate() throws RemoteException {
}

// Set the context variable
public void setSessionContext(SessionContext context) throws RemoteException {
this.context = context;
}
}

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++



SimpleHome.java code looks like this

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
import java.rmi.*;
import javax.ejb.*;

public interface SimpleHome extends EJBHome {
// create returns Simple, which is the remote interface.
public Simple create() throws RemoteException, CreateException;

}

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++




ejb-jar.xml looks like this

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
<?xml version="1.0" encoding="UTF-8"?>

<ejb-jar>
MPs First EJB
<display-name>SimpleEJB</display-name>
<enterprise-beans>

<ejb-name>Simple</ejb-name>
SimpleHome
Simple
<ejb-class>SimpleBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Container</transaction-type>

</enterprise-beans>
</ejb-jar>
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++



jboss.xml looks like this

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE jboss PUBLIC "-//JBoss//DTD JBOSS//EN"
"http://www.jboss.org/j2ee/dtd/jboss.dtd">

<enterprise-beans>

<ejb-name>Simple</ejb-name>
<jndi-name>Simple</jndi-name>

</enterprise-beans>


+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

[mario202]

Hi

I have shortly tried to deploy your sources and have found the following error:

09:12:36,542 ERROR [MainDeployer] could not create deployment: file:/C:/projects/java/jboss-4.0.0/server/monex/deploy/Simple.jar
org.jboss.deployment.DeploymentException: ejb-jar.xml must either obey the right xml schema or define a valid DOCTYPE!

I have updated you ejb-jar.xml as the following

<?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>
MPs First EJB
<display-name>SimpleEJB</display-name>
<enterprise-beans>

<ejb-name>Simple</ejb-name>
SimpleHome
Simple
<ejb-class>SimpleBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Container</transaction-type>

</enterprise-beans>
</ejb-jar>

Now on my installation it works!

09:14:23,376 INFO [EJBDeployer] Deployed: file:/C:/projects/java/jboss-4.0.0/server/monex/deploy/Simple.jar

[digitalkid]

Hello Mario202

Thanks again for the help. I tried with the new ejb-jar.xml It does not help. I don't even get any errors at all. Strange! But when I do the http:/127.0.0.1:8080 it does bring up the Jboss web page. Also I am using run -c all under bin directory to run the Jboss after placing the simple.jar file in server/all/deploy directory.

[mario202]

Hi

I have sent you an email to "[e-mail]" with my Simple.jar file. I suggest you to try it and if it not works re-install JBoss.

Cheers, Mario