I have 2 EARs that I wish to deploy in the same JBoss configuration. The EARs have identical contents except for the conf/log4j.xml file, the MySQL datasource file, and the META-INF/jboss-app.xml file. One of the files in each of the EARs is a JAR file (config.jar) containing POJOs and EJBs. config.jar is in the root level of the EARs. When I deploy the EARs I get the error: anonymous wrote : | --- MBeans waiting for other MBeans --- | ObjectName: jboss.j2ee:module=config.jar,uid=31702491,service=EjbModule | State: FAILED | Reason: javax.management.InstanceAlreadyExistsException: jboss.j2ee:jndiName=ejb/CustBean,service=EJB already registered. | This article http://www.jboss.org/community/docs/DOC-9288 and others I have found led me to make the changes: | myear1.ear: META-INF/jboss-app.xml | <jboss-app> | <loader-repository>com.mycompany:loader=myear1.ear</loader-repository> | </jboss-app> | | myear2.ear: META-INF/jboss-app.xml | <jboss-app> | <loader-repository>com.mycompany:loader=myear2.ear</loader-repository> | </jboss-app> | Section 2.2.2.4.2 of the documentation found here http://docs.jboss.org/jbossas/jboss4guide/r1/html/ch2.chapter.html confirms what I have done is correct. In default/deploy, my ear-deployer.xml has the contents: | <server> | <mbean code="org.jboss.deployment.EARDeployer" | name="jboss.j2ee:service=EARDeployer"> | <attribute name="Isolated">true</attribute> | <attribute name="CallByValue">false</attribute> | </mbean> | </server> | The EARs have identical META-INF/application.xml files with contents: | <module> | <web> | <web-uri>eartest_w.war</web-uri> | <context-root>test_root_ctx</context-root> | </web> | </module> | | <module> | <java>config.jar</java> | </module> | I want only one code base, and so having different JNDI names for my beans in each copy of config.jar is not something I want to do. The articles I have read suggest that what I want to do is possible, but I am clearly missing something. Any help therefore greatly appreciated! Thanks, Paul View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4223759#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...