What is the difference between `com.example. ** `and` com.example. ** {*;} `?

Question

When I use ProGuard, what is the difference between com.example.**and com.example.**{*;}? For example, what happens for each case?

  -keep class com.example.**

  -keep class com.example.** { *; }

Answer 1

-keep class com.example. **

Keep all classes in package com.example

-keep class com.example. ** {*; }

Keep all inner classes in package com.example