Most used Java libraries, frameworks, and APIs in big data projects -- part 1

This is the first article in a series about most used Java libraries, frameworks and API's in big data projects. Java, one of the most broadly used programming languages in big data projects, owes part of its popularity to its extensive ecosystem. Programming in Java provides the access to this ecosystem that consists of several libraries, frameworks, and APIs. Within a series of articles I am going to briefly describe the most used Java libraries, frameworks, and APIs for big data projects. There are numerous third-party libraries for Java programming language.