"jaikiran" wrote : | Looks like a bug in the persistence.xml parsing. The newline (and maybe even the leading and trailing space) doesn't seem to be trimmed while parsing the jta-data-source element. | | <jta-data-source>java:studProjectDS</jta-data-source> | The change that i mentioned should work. But i don't think its a bug in parsing. I just read the persistence xsd http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd <xsd:element name="jta-data-source" type="xsd:string" | minOccurs="0"> | The type is defined as xsd:string which allows newlines, leading and trailing space etc... So i think, the parser which converts this xml should let the newlines remain as is. It's upto the user to specify the correct value. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4199474#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...