referring Tomcat JNDI datasource in persistence.xml

Question

in server.xml I\'ve defined global resource (I\'m using Tomcat 6):

Answer 1

The in persistence.xml should be

java:comp/env/jdbc/myds

as per the response in http://forums.oracle.com/forums/thread.jspa?messageID=1899677

And also is your db driver in $CATALINA_HOME/lib