One of the most frequently voiced criticisms of the Java programming language is the amount of Boilerplate Code it requires. This is especially true for simple classes that should do nothing more than store a few values. You need getters and setters for these values, maybe you also need a constructor, overriding equals() andhashcode() is often required and maybe you want a more useful toString() implementation. In the end you might have 100 lines of code that could be rewritten with 10 lines of Scala or Groovy code. Java IDEs like Eclipse or IntelliJ try to reduce this problem by providing various types of code generation functionality. However, even if you do not have to write the code yourself, you always see it (and get distracted by it) if you open such a file in your IDE.
Project Lombok (don’t be frightened by the ugly web page) is a small Java library that can help reducing the amount of Boilerplate Code in Java Applications. Project Lombok provides a set of annotations that are processed at development time to inject code into your Java application. The injected code is immediately available in your development environment.
Lets have a look at the following Eclipse Screenshot: