Hi, i was trying to add a second ejb jar to my existing ear and i keep on failing on: anonymous wrote : | javax.naming.NoInitialContextException:Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial | before, i was having a single ejb jar, with a single war; file all wrapped inside an single ear. everything was perfect. but when i'm adding the second ejb jar with the following persistence.xml | <persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | xsi:schemaLocation="http://java.sun.com/xml/ns/persistence | http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" version="1.0"> | | <persistence-unit name="MyDataBase"> | | <provider>org.hibernate.ejb.HibernatePersistence</provider> | <jta-data-source>java:/MyDatasource</jta-data-source> | | <properties> | <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" /> | </properties> | | </persistence-unit> | </persistence> | i keep getting the the error above, but only for the new ejb jar. the original ejb jar works fine. i have tried to replace the data-source name to a different name that the one used by my first ejb jar, but the same result. of course the persistence-unit name is different in the two persistence.xml files. what am i doing wrong, it is a mystery for me? your help is appreciated, zilbi View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4199052#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...