J2ee jar extension mechanism

Question

I use bea weblogic as webserver
In my application directory there are 2 jar file: test0EJB.jar and test1EJB.jar
Inside the first jar there is one ejb: test0, package of test0 is print0
Inside the second jar there is one ejb: test1, package of test1 is print1
test0 call some method from test1 (not vice versa)
Inside test0EJB.jar there are 2 xml file: ejb-jar.xml and weblogic-ejb-jar.xml
this is ejb-jar.xml:
<?xml version="1.0"?>
<!DOCTYPE ejb-jar PUBLIC '-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 1.1//EN' 'http://java.sun.com/j2ee/dtds/ejb-jar_1_1.dtd'>
<ejb-jar>
<enterprise-beans>
<session>
<description></description>
<ejb-name>test0</ejb-name>
<home>stampa0.test0Home</home>
<remote>stampa0.test0</remote>
<ejb-class>stampa0.test0EJB</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Container</transaction-type>
<ejb-ref>
<ejb-ref-name>test1</ejb-ref-name>
<ejb-ref-type>Session</ejb-ref-type>
<home>stampa1.test1Home</home>
<remote>stampa1.test1</remote>
</ejb-ref>
</session>
</enterprise-beans>
<assembly-descriptor>
<container-transaction>
<method>
<ejb-name>test0</ejb-name>
<method-name>*</method-name>
</method>
<trans-attribute>Required</trans-attribute>
</container-transaction>
</assembly-descriptor>
</ejb-jar>
this is weblogic-ejb-jar.xml
<?xml version="1.0"?>
<!DOCTYPE weblogic-ejb-jar PUBLIC '-//BEA Systems, Inc.//DTD WebLogic 6.0.0 EJB//EN' 'http://www.bea.com/servers/wls600/dtd/weblogic-ejb-jar.dtd'>
<weblogic-ejb-jar>
<weblogic-enterprise-bean>
<ejb-name>test0</ejb-name>
<stateless-session-descriptor></stateless-session-descriptor>
<reference-descriptor>
<ejb-reference-description>
<ejb-ref-name>test1</ejb-ref-name>
<jndi-name>test1</jndi-name>
</ejb-reference-description>
</reference-descriptor>
<jndi-name>test0</jndi-name>
</weblogic-enterprise-bean>
</weblogic-ejb-jar>
Inside META-INF directory in test0EJB.jar there is this manifest.mf:
Manifest-Version: 1.0
Created-By: 1.3.0_01 (WebGain, Inc.)
Class-Path: test1EJB.jar
When i execute my client, test0 work but when he call tes1 i have this error:
java.rmi.RemoteException: EJB Exception: ; nested exception is:
java.lang.NoClassDefFoundError: print1/test1Home
I can't put the 2 jar file in one ear file
Anybody can help me?

Answer 1

Pack your EJBs into an EAR (with any common jars) and deploy the ear.
I had a working example with Weblogic 7.0, built the EAR with ANT
and from the build.xml file I have copied the following comment, that might clarify things a bit.
In this case oevCalculators_common.jar was the common JAR, which was used by oevCalculators_server.jar. The expansion of the server.jar in my example is a snippet of the content of the jar within the EAR, you should not see a structur like that if you open the final EAR with Winzip.
EAR:
+--META-INF
|  +--Manifest.MF
|  +--application.xml
+--oevCalculators_common.jar <----------------------+
+--oevCalculators_server.jar                        |
   *--META-INF                                      |(refers to)
   |  *--Manifeast.MF                               |
   |       CLASS-PATH: oevCalculators_common.jar ---+
   *--com