Julien Ponge has released IzPack 3.5.2, an open source tool for building cross-platform installers in Java. 3.5.3 is a very minor bug fix release. It's published under the GPL.
Etienne Gagnon has released version 1.1.4 of SableVM, a Java bytecode interpreter (that is, a virtual machine) written in portable C. "SableVM requires an ANSI/ISO C compiler (but preferably GCC) and a POSIX platform. It requires a strong memory model (sequential consistency) on multiprocessor systems." SableVM is available for GNU/Linux. Solaris, Mac OS X, and FreeBSD. Version 1.1.4 uses GNU Classpath 0.09, improves support for AWT and Swing, adds support for the AMD64, improves autodetection of build parameters on non-Linux systems, and fixes a number of bugs. SableVM is published under the GNU Lesser General Public License (LGPL).
The Jakarta Apache Project has released Cactus 1.6.1, a simple framework for unit testing server-side Java code such as servlets, Enterprise JavaBeans, tag libraries, etc. New features since 1.5 include