moxy/eclipselink.moxy.test/resource/org/eclipse/persistence/testing/jaxb/typevariable/extendedMap.xml

<?xml version="1.0" encoding="UTF-8"?>
<root>
    <foo>
        <entry>
            <key>
                <id>1</id>
            </key>
            <value/>
        </entry>
        <entry>
            <key>
                <id>2</id>
            </key>
            <value/>
        </entry>
    </foo>
</root>