Why is Cargo generating duplicate data sources for Weblogic 10.3.x container?
<plugin>
<groupId>org.codehaus.cargo</groupId>
<artifactId>cargo-maven2-plugin</artifactId>
<version>1.0.6</version>
<configuration>
        <wait>false</wait>
        <!--Configure the Container -->
        <container>
                <containerId>weblogic103x</containerId>
                <timeout>1800000</timeout>
                <home>${weblogic.10.3.home}</home>
                <systemProperties>
                        <server.logs>${project.build.directory}</server.logs>
                        <net.sf.ehcache.disabled>true</net.sf.ehcache.disabled>
                        <javax.xml.soap.MessageFactory>
                                com.sun.xml.internal.messaging.saaj.soap.ver1_1.SOAPMessageFactory1_1Impl
                        </javax.xml.soap.MessageFactory>
                        <cargo.jvmargs>-XX:MaxPermSize=256M -Xmx512m</cargo.jvmargs>
                </systemProperties>
                <output>${project.build.directory}/weblogic.log</output>
                <append>true</append>
                <log>${project.build.directory}/cargo.log</log>
        </container>

        <!--configure the deployer -->
        <deployer>
                <type>local</type>
                <deployables>
                        <deployable>
                                <groupId>my.group.id</groupId>
                                <artifactId>my.artifact.id</artifactId>
                                <type>ear</type>
                        </deployable>
                </deployables>
        </deployer>

        <configuration>
                <type>standalone</type>
                <home>c:/bea/user_projects/domains/cargo_domain</home>
                <properties>
                        <cargo.servlet.port>7001</cargo.servlet.port>
                        <cargo.logging>medium</cargo.logging>
                        <cargo.java.home>${jrockit.1.6.home}</cargo.java.home>
                        <cargo.datasource.datasource.my_connection>
                                cargo.datasource.id=my_connection_id|
                                cargo.datasource.type=javax.sql.XADataSource|
                                cargo.datasource.driver=weblogic.jdbcx.oracle.OracleDataSource|
                                cargo.datasource.jndi=jdbc/MyConnection|
                                cargo.datasource.username=MyUserName|
                                cargo.datasource.password=MyPassword|
                                cargo.datasource.properties=portNumber=1521;SID=my_sid;serverName=my_server_url
                        </cargo.datasource.datasource.my_connection>
                </properties>
        </configuration>
</configuration>

<executions>
        <execution>
                <id>setup-server</id>
                <phase>pre-integration-test</phase>
                <goals>
                        <goal>start</goal>
                </goals>
        </execution>
        <execution>
                <id>stop-server</id>
                <phase>post-integration-test</phase>
                <goals>
                        <goal>stop</goal>
                </goals>
        </execution>
</executions>

<jdbc-system-resource>
    <name>my_connection_id</name>
    <target>AdminServer</target>
    <descriptor-file-name>jdbc/my_connection-jdbc.xml</descriptor-file-name>
</jdbc-system-resource>
<jdbc-system-resource>
    <name>my_connection_id</name>
    <target>AdminServer</target>
    <descriptor-file-name>jdbc/my_connection-jdbc.xml</descriptor-file-name>
</jdbc-system-resource>