Java @序列化名称已忽略

我的Google cloud端点在post正文中接收一个对象，当将JSON转换为实际的Java对象时，大多数字段都是空的。端点API似乎没有考虑像@SerializedName这样的gson注释

public class MyObject{

    @SerializedName("production_unit_ID")
    private Long productionUnitId;
    ...
    getters / setters

}

API:

@ApiMethod（name=“puMyObject”，httpMethod=“put”，path=“putmobject”）
公共MyObject putWorkOrder（HttpServletRequest请求，MyObject MyObject）{
myobj.getProductionUnitId（）；//端点不在引擎盖下使用GSON。请改用它

    @ApiMethod(name = "puMyObject", httpMethod = "put", path = "putMyObject")
        public MyObject putWorkOrder(HttpServletRequest req, MyObject myobj) {

        myobj.getProductionUnitId(); // <-- null

<dependency>
    <groupId>com.google.http-client</groupId>
    <artifactId>google-http-client</artifactId>
    <version>1.23.0</version>
</dependency>

<dependency>
    <groupId>com.google.http-client</groupId>
    <artifactId>google-http-client-gson</artifactId>
    <version>1.23.0</version>
</dependency>