<local-tx-datasource>
                <jndi-name>myDS</jndi-name>
                <driver- class >oracle.jdbc.driver.OracleDriver</driver- class >

                <connection-url>jdbc:oracle:thin:@compname: 1521 :dbname</connection-url>
                <user-name>user1</user-name>
                <password>passw1</password>

                <min-pool-size> 5 </min-pool-size>
                <max-pool-size> 20 </max-pool-size>
                <idle-timeout-minutes> 0 </idle-timeout-minutes>
                <track-statements/>

                <metadata>
                    <type-mapping>Oracle9i</type-mapping>
                </metadata>
            </local-tx-datasource>

Caused by: org.jboss.resource.JBossResourceException: Could not create connection; - nested throwable: (java.sql.SQLException: ORA- 01017 : invalid username/password; logon denied)