moxy/org.eclipse.persistence.moxy/src/test/resources/org/eclipse/persistence/testing/jaxb/typevariable/extendedMap.json

{
    "root" : {
        "foo" : {
            "entry" : [
                {
                    "key" : {
                        "id" : 1
                    },
                    "value" : {}
                }, {
                    "key" : {
                        "id" : 2
                    },
                    "value" : {}
                }
            ]
        }
    }
}