My application has a CMT session bean invoking a BMP entity bean that uses JDBC queries to perform Database operations.the ejb-jar.xml have resource ref defined at both the session bean definition and the entity bean definition at ejb-jar.xml. is it not sufficient to place the resource references only on session beans rather that having it defined on both session and entity beans ?
Defining resource-ref tags on both session bean and entity bean
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The resource-refs in the ejb-jar.xml are only visible within the EJB definition that contains them.
If an EJB is not performing a JNDI lookup of a resource then it will not need the resource-ref.