gistfile1.txt

<datasources>
                <datasource jndi-name="java:/H2DS" enabled="true" use-java-context="true" pool-name="H2DS">
                    <connection-url>jdbc:h2:mem:test;DB_CLOSE_DELAY=-1</connection-url>
                    <driver-class>org.h2.Driver</driver-class>
                    <driver>h2</driver>
                    <pool></pool>
                    <security>
                        <user-name>sa</user-name>
                        <password>sa</password>
                    </security>
                    <validation></validation>
                    <timeout></timeout>
                    <statement></statement>
                </datasource>
            </datasources>
            <drivers>
                <driver name="h2" module="com.h2database.h2"/>
            </drivers>
        </subsystem>

gistfile2.txt

<datasources>
                <datasource jndi-name="java:/H2DS" enabled="true" use-java-context="true" pool-name="H2DS">
                    <connection-url>jdbc:h2:mem:test;DB_CLOSE_DELAY=-1</connection-url>
                    <driver-class>org.h2.Driver</driver-class>
                    <jdbc-client>h2</jdbc-client>
                    <pool></pool>
                    <security>
                        <user-name>sa</user-name>
                        <password>sa</password>
                    </security>
                    <validation></validation>
                    <timeout></timeout>
                    <statement></statement>
                </datasource>
            </datasources>
            <jdbc-clients>
                <jdbc-client name="h2" module="com.h2database.h2"/>
            </jdbc-clients>
        </subsystem>