Guava is a suite of core and expanded libraries that include

Java API for Bytecode

ASM, a very small and fast Java bytecode manipulation framework

Annotations the SpotBugs tool supports

General data-binding functionality for Jackson: works on core streaming API

Rich and fluent assertions for testing in Java

Mockito mock objects library core API and implementation

TestNG is a testing framework inspired from JUnit and NUnit but introducing some new functionalities that make it more ...