Which ever data source you create (for instance lets say for oracle data source or mysql data source ) file name should end with “name-ds.xml” and the content should be
<?xml version="1.0" encoding="UTF-8"?>
<datasources>
<local-tx-datasource>
<jndi-name>tjOracleDS</jndi-name>
<use-java-context>false</use-java-context>
<connection-url>jdbc:oracle:thin:@localhost:1521:tjdb</connection-url>
<driver-class>oracle.jdbc.driver.OracleDriver</driver-class>
<user-name>staging</user-name>
<password>staging</password>
<exception-sorter-class-name>org.jboss.resource.adapter.jdbc.vendor.OracleExceptionSorter</exception-sorter-class-name>
<min-pool-size>5</min-pool-size>
<max-pool-size>30</max-pool-size>
<blocking-timeout-millis>5000</blocking-timeout-millis>
<metadata>
<type-mapping>Oracle9i</type-mapping>
</metadata>
</local-tx-datasource>
</datasources>
<use-java-context>false</use-java-context>
This help us to remove java:comp from jndi look up for data source