What does the double asterisk mean in proguard rules?

问题

What does this rule mean in proguard for example:

-keep class myjava.** {*;}

I understand {*;} part would mean all members and methods in the class. But what does the 2 asterisk mean in the package name?.

Thanks in advance.

回答1:

From the manual:

Types in classname, annotationtype, returntype, and argumenttype can contain
wildcards: '?' for a single character, '*' for any number of characters (but
not the package separator), '**' for any number of (any) characters, '%' for
any primitive type, '***' for any type, and '...' for any number of arguments.

来源：https://stackoverflow.com/questions/21727162/what-does-the-double-asterisk-mean-in-proguard-rules