I try to setup a database connection in java with JNDI in combination with eclipseLink/JPA on Tomcat 5.5. I already configured the JNDI resource in web.xml and context.xml.
I hope you could solve the problem with the comments given ...
I fix it by adding a property "javax.persistence.nonJtaDataSource" with the same value as the element non-jta-data-source
non-jta-data-source