We are having problems deploying EJB applications under a combined
JBoss3.2.5/Tomcat5x server. What we want to do is be able to deploy multiple
EARs which contain EJBs, and WARs which reference those EJBs. We would like to
have some EARs which might provide EJBs which are common to several
applications.
We are having problems configuring our EARs and WARs, even in the simplest
case, and are hoping someone may be able to help.
In the simplest case what we want to deploy is something like this:
JBoss Deploy Dir
----------------
|
|---Application1.ear
| |
| |---Application1Ejb.jar
| | |---applicationlayer.User
| | |---applicationlayer.UserBean
| | |---applicationlayer.UserHome
| |
| |---Other.jar
| |
| |---META-INF
| |---application.xml
| |---jboss-app.xml
| |---Manifest.mf
|
|---Client1.war
| |
| |---WEB-INF
| |---web.xml
| |---jboss-web.xml
| |
| |---classes
| | |---client.TestServlet
| |
| |---lib
| |---Application1EjbClientClasses.jar
| | |---applicationlayer.User
| | |---applicationlayer.UserHome
| |
| |---Other.jar
In the above we have a web application, Client1.war, which invokes an EJB in an
application, Application1.ear, by doing a Jndi lookup (we haven't coded local
EJB classes).
Both Application1 and Client1 contain their own version of some common code in
Other.jar. In order for Client1 and Application1 to work correctly, they also
need to be able to use code from their own version of Other.jar (that is
packaged inside them) - this means they each need to be loaded by their own
class loader. (Later, we might deploy another application, Application2.ear
which also might want to lookup EJBs in Application1.ear.)
We found several references which indicated several things needed to be
configured to make things work. Currently we have:
Excerpt from web.xml -
<loader-repository>client1:loader=Client1.war</loader-repository>
<ejb-ref>
<ejb-ref-name>UserBean</ejb-ref-name>
<ejb-ref-type>Session</ejb-ref-type>
applicationlayer.UserHome
applicationlayer.User
</ejb-ref><ejb-ref>
<ejb-ref-name>UserBean</ejb-ref-name>
<jndi-name>jnp://localhost/UserBeanJndiName</jndi-name>
</ejb-ref>
Other.jar
Excerpt from ejb-jar.xml -
<enterprise-beans>
<display-name>UserBean</display-name>
<ejb-name>UserBean</ejb-name>
applicationlayer.UserHome
applicationlayer.User
<ejb-class>applicationlayer.UserBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Bean</transaction-type>
</enterprise-beans>
Excerpt from jboss.xml -
<enterprise-beans>
<ejb-name>UserBean</ejb-name>
<jndi-name>UserBeanJndiName</jndi-name>
</enterprise-beans>
Excerpt from jboss-app.xml -
<loader-repository>application1:loader=Application1Ejb.ear</loader-repository>
When we run the TestServlet with this configuration, we get the following
error, which we haven't been able to resolve:
2005-02-08 10:07:26,047 ERROR [org.jboss.ejb.plugins.LogInterceptor]
EJBException: javax.ejb.EJBException: Invalid invocation, check your deployment
packaging, method=public abstract applicationlayer.User
applicationlayer.UserHome.create() throws
java.rmi.RemoteException,javax.ejb.CreateException
If we deploy Client1.war in a stand-alone Tomcat instance, and Application1.ear
in a separate JBoss instance, then the Jndi lookup succeeds and everything
works as expected.
Also, if we deploy both Client1.war and Application1.ear in the combined
JBoss/Tomcat using the default class loader (ie without the loader-repository
tags), then the Jndi lookup succeeds and the servlet works (but only the first
loaded Other.jar classes are visible, which is not what we want).
This implies that the 'standard' part of the EJB packaging/lookup is correct,
and that there is some JBoss-specific configuration that we are missing. We
have tried several variations of things with no success.
Can anyone suggest what the solution might be please?
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http://www.jboss.org/index.html?module=bb&op=viewtopic&p=3866300#3866300
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