thank you for your quick reply, here is my oracle-xa--ds.xml file : | <datasources> | <xa-datasource> | <jndi-name>XAOracleDS</jndi-name> | <track-connection-by-tx/> | <isSameRM-override-value>false</isSameRM-override-value> | <xa-datasource-class>oracle.jdbc.xa.client.OracleXADataSource</xa-datasource-class> | <xa-datasource-property name="URL">jdbc:oracle:thin:@192.168.9.151:1521:DEVSTR</xa-datasource-property> | <xa-datasource-property name="User">ccare</xa-datasource-property> | <xa-datasource-property name="Password">ccare</xa-datasource-property> | | <!-- Uses the pingDatabase method to check a connection is still valid before handing it out from the pool --> | <!--valid-connection-checker-class-name>org.jboss.resource.adapter.jdbc.vendor.OracleValidConnectionChecker</valid-connection-check | <!-- Checks the Oracle error codes and messages for fatal errors --> | | <exception-sorter-class-name>org.jboss.resource.adapter.jdbc.vendor.OracleExceptionSorter</exception-sorter-class-name> | <!-- Oracles XA datasource cannot reuse a connection outside a transaction once enlisted in a global transaction and vice-versa --> | <!-- | <no-tx-separate-pools/> | --> | <!-- corresponding type-mapping in the standardjbosscmp-jdbc.xml (optional) --> | <application-managed-security>true</application-managed-security> | <metadata> | <type-mapping>Oracle9i</type-mapping> | </metadata> | </xa-datasource> | | <mbean code="org.jboss.resource.adapter.jdbc.vendor.OracleXAExceptionFormatter" | name="jboss.jca:service=OracleXAExceptionFormatter"> | <depends optional-attribute-name="TransactionManagerService">jboss:service=TransactionManager</depends> | </mbean> | | </datasources> | | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4191743#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...