junit4 software package provides JUnit regression test framework for Java, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install junit4
junit4 is installed in your system.
Make ensure the junit4 package were installed using the commands given below,
$ sudo dpkg-query -l | grep junit4 *
You will get with junit4 package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Development |
| Package | junit4 |
| Version | 4.12-4ubuntu1 |
| Description | JUnit regression test framework for Java |
| Sub Section | Devel |