最近调用javapns的包，2.2版本的jar包，发现最多的推送字节数限制是256，超出了就是报错。
但是查看了apple的开发者文档，上面ios8的推送限制已经从256个字节改为2k了。
我现在要推送的内容明显的大于了256个字节，现在能怎么做才能突破256这个限制？
请大家帮我分析一下，有遇到同样问题的朋友吗？
Each remote notification includes a payload. The payload contains information about how the system should alert the user as well as any custom data you provide. The maximum size allowed for a notification payload is 2 kilobytes; Apple Push Notification service refuses any notification that exceeds this limit.
https://developer.apple.com/library/ios/documentation/NetworkingInternet/Conceptual/RemoteNotificationsPG/Chapters/ApplePushService.html
看这个官方文档，其中有新的协议描述。