Armed Bear Common Lisp (ABCL) - Common Lisp on the JVM

Project description
ABCL is a full implementation of the Common Lisp language featuring both an interpreter and a compiler, running in the JVM. Originally started to be a scripting language for the J editor, it now supports JSR-233 (Java scripting API): it can be a scripting engine in any Java application. Additionally, it can be used to implement (parts of) the application using Java to Lisp integration APIs.
Download your copy from SourceForge: 0.15.0 (zip)
Users (development with ABCL)	Developers (development of ABCL)
FAQ Introduction: building & running Documentation Examples Testimonials Bug reporting	Mailing list and the old mailing list (abandoned) Mailing list access on gmane Repository Technical wiki Bug tracker Contributing
Licensing
ABCL is covered by the GNU General Public License with Classpath exception, meaning that you can use ABCL in your application without the requirement to open the sources to your application.
System requirements (Users)	System requirements (Developers)
JRE 1.5.0 (any patch level), or JRE 1.6.0 (patch level 10 or higher) One of the explicitly supported platforms: Windows, Linux, MacOS X, OpenBSD, NetBSD, FreeBSD or Google App Engine	JDK 1.5.0 (any patch level), or JDK 1.6.0 (patch level 10 or higher) Ant version 1.7.1 or higher, or A Lisp to run the lisp-based build system