JD-GUI

Decompiles Java .jar/.class files back to source.

A graphical Java decompiler. It opens .jar or .class files and shows the reconstructed source, to read a Java application's logic and locate credentials or flaws.

Family File analysis & reversing

Flags <file>.jar

Concepts APK analysis (reversing Android apps), Credentials in source code

Installation

sudo apt install -y jd-gui

Repositorygithub.com/java-decompiler/jd-gui

Useful commands1 commands

Appears in

Some machines where its use is documented; not an exhaustive list.

CraftyHackTheBox