With the boom of horizontal scalability and microservice architecture, the world observed the “container deployment era”. Containers have been in use for more than ten years. Today at least a quarter of leading IT companies use container solutions in a big production, and this number is likely to grow further.
Legacy is 'inheritance', and this inheritance is hard to deal with. Almost every developer has come through the project where the received code was written by someone else ten years ago.
It’s no secret that Java is one of the most popular programming languages in the world right now. It was officially launched on May 23, 1995.