Java SDK 如何获取到cn.leancloud.Messages中ErrorCommand的appMsg字段

[Polemo]

peerId: "2353492"
i: -65508
service: 2
ackMessage {
code: 4402
reason: "MESSAGE_REJECTED_BY_APP"
t: 1592477090827
uid: "cLcswzKpTDGzwlZc5R5UBQ"
appCode: 101
appMsg: "msg"
}

[Polemo]

或者是AckCommand中的appMsg

[xiaoxu]

您好，您粘贴的这个是我们服务端的打印日志，客户端获取不到的。