how to connect multiple datasources lookup in sessionbean in JBoss;when i run jboss while deploying only i am getting EJB Spec violation is coming.

ejb-jar.xml
*************

No Description
<display-name>DeptSessionBean</display-name>
<ejb-name>DeptSessionBean</ejb-name>
com.blah.blah.blah.blah.DeptSessionBeanHome
com.blah.blah.blah.blah.DeptSession
<ejb-class>com.blah.blah.blah.blah.DeptSessionBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Container</transaction-type>
<resource-ref>
No Description
<res-ref-name>jdbc/DB</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>

</resource-ref>


No Description
<display-name>DeptSessionBeanDuplicate</display-name>
<ejb-name>DeptSessionBeanDuplicate</ejb-name>
com.blah.blah.blah.blah.DeptSessionBeanHome
com.blah.blah.blah.blah.DeptSession
<ejb-class>com.blah.blah.blah.blah.DeptSessionBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Container</transaction-type>
<resource-ref>
No Description
<res-ref-name>jdbc/ReportDB</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>

</resource-ref>


jboss.xml
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<ejb-name>DeptSessionBean</ejb-name>
<jndi-name>DeptSessionBean</jndi-name>
<res-ref-name>jdbc/DB</res-ref-name>
<resource-name>oraclePool</resource-name>



<ejb-name>DeptSessionBeanDuplicate</ejb-name>
<jndi-name>DeptSessionBeanDuplicate</jndi-name>
<res-ref-name>jdbc/ReportDB</res-ref-name>
<resource-name>reportPool</resource-name>