fastjson混淆后default constructor not found.

错误：com.alibaba.fastjson.JSONException: default constructor notfound. class com.penavico.penavicoxm.bean.JsonBeanVersionInfo$Data

解决方法：

-keepattributesExceptions,InnerClasses,Signature,Deprecated,SourceFile,LineNumberTable,LocalVariable*Table,

*Annotation*,Synthetic,EnclosingMethod

原文：http://blog.sina.com.cn/s/blog_9564cb6e0101wx4l.html