Why Use Netty Java?

Netty provides an incredible amount of power for developers who need to work down on the socket level, for example when developing custom communication protocols between clients and servers. It supports SSL/TLS, has both blocking and non-blocking unified APIs, and a flexible threading model.

What is Netty jar used for?

Netty is a non-blocking I/O client-server framework for the development of Java network applications such as protocol servers and clients. The asynchronous event-driven network application framework and tools are used to simplify network programming such as TCP and UDP socket servers.

How does Java Netty work?

Netty runs embedded in your own Java applications. That means that you create a Java application with a class with a main() method and inside that application you create one of the Netty servers. This is different from Java EE servers, where the server has its own main method and loads your code from the disk somehow.