fun4j - functional programming for the JVM

The fun4j tutorials

To get you started with fun4j here are some tutorials covering the most important stuff.

Here is the list of covered topics:

Functional Java libray - allows you to use functions as first class citizens in your Java code.
Integration of Java and Lisp code - mix Java and LISP as it fits best to your programming task at hand
Lisp Interpreter - Allows to use the fun4j System interactively
Functional Assembler - assembling Java Functions from AST-expression