Source, Version 2.2.6	ZThread-2.2.6.tar.gz    (Sourceforge)
Source, Version 2.2.6	ZThread-2.2.6.tar.gz    (SUNY @ Buffalo)

For the last 1.5.X release:

Source, Version 1.5.4	ZThread-1.5.4.tar.gz    (Sourceforge)
Source, Version 1.5.4	ZThread-1.5.4.tar.gz    (SUNY @ Buffalo)

For an archive of past releases, visit sourceforge.

The Java version is, by no means, a complete port of the C++ library. Its main purpose was to help model and develop the ideas and patterns used in the main version of the library. However, it is still useful in many situations. For a more complete description of what this is and how it came to be, please see the README included.

Source, Version 0.0.1	ZThread-Java-0.0.1.tar.gz    (Sourceforge)
Source, Version 0.0.1	ZThread-Java-0.0.1.tar.gz    (SUNY @ Buffalo)

I'd also recommend taking a look at Doug Lea's util.concurrent package if you are interested in Java threading libraries. You can find more information about it on his web page. If you need a