I’ve found this great Java library that can make developers more efficient in pretty much every source file they write. It has the following features:

• a broad and powerful collections framework
• collection methods that greatly reduce boilerplate
• immutable collections that don’t have mutation methods (unlike java.util classes where e.g. List.add() throws an exception if the list is immutable)
• an awesome switch-like function that doesn’t just match numbers, enums, chars and strings, but can succinctly match all kinds of patterns in lots of different classes, even in your own classes
• an annotation that automatically writes meaningful equals, hashCode and toString methods for classes whose fields don’t change (without using reflection) Continue reading →