1.null (http status: 422)

mesosphere.marathon.client.MarathonException: null (http status: 422)
    at mesosphere.marathon.client.MarathonClient$MarathonErrorDecoder.decode(MarathonClient.java:30)
    at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:134)
    at feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:76)
    at feign.ReflectiveFeign$FeignInvocationHandler.invoke(ReflectiveFeign.java:103)
    at com.sun.proxy.$Proxy67.createApp(Unknown Source)
    at com.yidian.data.commons.utils.MarathonUtils.createApp(MarathonUtils.java:124)

原因1：App的id中不能包含下划线‘_’，具体提示信息如下：

{
    "message": "Invalid JSON",
    "details": [
        {
            "path": "/id",
            "errors": [
                "error.pattern"
            ]
        }
    ]
}

原因2：env的值必须是字符串，具体提示信息如下：

{
    "message": "Invalid JSON",
    "details": [
        {
            "path": "/env/PS_VERBOSE/secret",
            "errors": [
                "error.path.missing"
            ]
        }
    ]
}

2.Conflict (http status: 409)

mesosphere.marathon.client.MarathonException: Conflict (http status: 409)
    at mesosphere.marathon.client.MarathonClient$MarathonErrorDecoder.decode(MarathonClient.java:30)
    at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:134)
    at feign.SynchronousMethodHandler.invoke(SynchronousMethodHandler.java:76)
    at feign.ReflectiveFeign$FeignInvocationHandler.invoke(ReflectiveFeign.java:103)
    at com.sun.proxy.$Proxy70.createApp(Unknown Source)
    at com.yidian.data.commons.utils.MarathonUtils.createApp(MarathonUtils.java:154)

原因：已存在ID相同的App