JUnit is a unit testing framework for Java, created by Erich Gamma and Kent Beck.
Last Release on Jan 1, 2020
Standard library for the Scala Programming Language
Last Release on Apr 23, 2020
Guava is a suite of core and expanded libraries that include utility classes, google's collections, io classes, and much much more.
Last Release on Apr 13, 2020
Mockito mock objects library core API and implementation
Last Release on Mar 13, 2020
The Support Library is a static library that you can add to your Android application in order to use APIs that are either not available for older platform versions or utility APIs that aren't a part of the framework APIs. Compatible on devices running API 14 or later.
Last Release on Sep 22, 2018
The Apache Commons IO library contains utility classes, stream implementations, file filters, file comparators, endian transformation classes, and much more.
Last Release on May 27, 2020
Last Release on Oct 22, 2019
Apache Commons Lang, a package of Java utility classes for the classes that are in java.lang's hierarchy, or are considered to be so standard as to justify existence in java.lang.
Last Release on Mar 27, 2020
Clojure core environment and runtime library.
Last Release on Mar 5, 2020