Hi, Resolved by declaring user and password in the URL of every dataSource in tomee.xml as below :
<Resource id ="jdbc/myDataSource" type="DataSource" > XaDataSource jdbc/myXADataSource UserName myUser Password myPassword JtaManaged true ValidationQuery SELECT 1 FROM DUAL </Resource> <Resource id ="jdbc/myXADataSource" class-name ="oracle.jdbc.xa.client.OracleXADataSource"> Url jdbc:oracle:thin:myUser/myPassword@localhost:1521:MyService dataSourceCreator dbcp </Resource> have look to -> https://issues.jboss.org/browse/JBTM-619 <https://issues.jboss.org/browse/JBTM-619> -- Sent from: http://tomee-openejb.979440.n4.nabble.com/TomEE-Users-f979441.html