Guice

Guice is a powerful software tool that can alleviate the need for factories and the use of new in your Java code. It makes use of the @Inject function, which can be thought of as a replacement for new. This makes your code easier to change, unit test, and reuse in other contexts. While there may still be cases where factories are necessary, your code will not depend directly on them.

Guice is designed to embrace the type-safe nature of Java, especially in regards to features introduced in Java 5 like generics and annotations. In a way, Guice fills in missing features for core Java. Although it would be ideal for the language itself to provide these features, Guice is stepping in to do so until then.

One of the major benefits of using Guice is that it helps you design better APIs. The Guice API itself is an excellent example of this, with each feature justified with at least three use cases. Guice is not a "kitchen sink," either. It allows for general functionality so that you can extend Guice as needed, rather than adding every feature to the core framework.

Guice aims to make development and debugging faster and easier, without any surprises or magic involved. You should be able to understand the code with or without tools, although tools can certainly make things even easier. If errors do occur, Guice will go the extra mile to generate helpful messages, so you can easily fix the problem.

It's important to note that Guice is licensed and distributed under the terms of the Apache License 2.0. If you're looking for a software tool that can help streamline your Java development process, Guice is worth checking out.