Use JSS (http://abcl.org/svn/tags/1.3.0/contrib/jss/README.markdown http://abcl.org/svn/tags/1.3.0/contrib/jss/README.markdown): ;; During initialization

Use JSS (http://abcl.org/svn/tags/1.3.0/contrib/jss/README.markdown http://abcl.org/svn/tags/1.3.0/contrib/jss/README.markdown): ;; During initialization (require 'abcl-contrib) (require 'jss) Then, for example: CL-USER(1): (in-package :jss) JSS(2): (lambda (x y) (format t "~&addTwoNumbers(~A, ~A): ~A~%" x y (#"addTwoNumbers" (new 'Main) x y))) #<FUNCTION (LAMBDA (X Y)) {7EEE31B2}> JSS(3): (funcall * 20 30) addTwoNumbers(20, 30): 50 NIL The same goes for any Java library. As for AWS, I have no experience with it. Looking around, there seems to be https://github.com/hargettp/hh-aws https://github.com/hargettp/hh-aws. Btw, I am not attacking Clojure, but the idea that Clojure is the only useful Lisp available on the JVM.