jardiff software package provides tool to visualise API differences between two JAR files, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install jardiff
jardiff is installed in your system.
Make ensure the jardiff package were installed using the commands given below,
$ sudo dpkg-query -l | grep jardiff *
You will get with jardiff package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Utilities |
| Package | jardiff |
| Version | 0.2-5 |
| Description | tool to visualise API differences between two JAR files |
| Sub Section | Utils |