the format of mutation generation of PIT tool

I am interested in mutation testing and I want to generate faults in code with mutation testing tools and I found PIT. Besides I am reading a paper about regression testing and it gave the experimental data on its site. On of the data is the output of PIT which is the faults in this format:

com.notnoop.apns.PayloadBuilder::()V:55:12:0

or

com.notnoop.apns.PayloadBuilder:insertCustomAlert:()V:377:14:0

and etc

But I don't understand the format of the output and what it is.

Could you please help me?

Thank you a lot.