Patrick Duverger has released Kanaputs 1.3, a shell like interpreter for Java that runs Java source code without without first compiling it to byte code. It can be used as an embedded scriptiing lnaguage in Ant files, among other uses.
SuperWaba 4.21a, an open source Java virtual machine for handheld operating systems including PalmOS and Windows CE devices, has been released. SuperWaba is published under the LGPL.
Dan Creswell has released Blitz JavaSpaces 2.0.4, an open source implementation of JavaSpaces that is Jini 2.0 enabled. It implements smart indexing, tuneable persistence, and active/passive lease cleanup. 2.0.4 mostly fixes bugs.