SableVM is a clean-room, highly portable and efficient Java virtual machine. Its goals are to be
reasonably small, fast, and compliant with the various specifications (JVM specification, JNI, invocation interface, etc.).
RefLisp is a small Lisp interpreter written in C++. It has:
an built-in web server, Wiki, LISP server pages, SQL Databases, XML parser, MD5 hashing, regular expressions, reference counting and mark-sweep garbage collection, GPL.