Source debug information for package class?

When runing pitest to do some mutation testing with AndroidStudio, I'm hit with this error :

The class org.lakedaemon.compress.decoders.DecodersPackage does not contain a source debug information. All classes must be compiled with source and line number debug information.

Is there a way to achieve that (or not ? as I guess that such classes are made from many files and it might not be possible to link back bytecode to various file+lines)

The other classes don’t have this problem (source file + lines are in te bytecode by default)