struts2-json-plugin/src/test/resources/org/apache/struts2/json/smd-12.txt

{
    "error":null,
    "id":"15",
    "result": {
        "bigDecimal": null,
        "bigInteger": null,
        "booleanField": true,
        "byteField": 0,
        "charField": "s",
        "doubleField": 10.1,
        "enumBean": null,
        "enumField": null,        
        "floatField": 1.5,
        "intField": 10,
        "longField": 100,
        "objectField": null,
        "stringField": "str"
    }
}