A port of OpenJDK7 for PowerPC Macintosh. OpenJDK is an attempt to
make an open source, Java compatible runtime.

See also: [Java SE 6 DP][1], [SoyLatte][2]

Compatibility
Architecture: PPC

Although most of these have been built on Leopard, they should also
work on Tiger. Note that Web Start is not available in OpenJDK.

Installation:
Relatively strait forward, the runtime can actually be anywhere on
your disk so long as the "bin" folder is in you path or the included
UNIX apps are symlinked in /USR/LOCAL/BIN.
OpenJDK prefers to run in command line mode by default: use the
argument "-Djava.awt.headless=false" to force launch it in X11.

Compiling:
Unfortunately this no longer appears to be an option. According to
[this comments section][3], it no longer properly compiles. Still, if
you want to give it a try the instructions were formerly available
[here][4].

  [1]: http://macintoshgarden.org/apps/java-se-6-release-1-developer-preview-mac-os-x-104-tiger
  [2]: http://macintoshgarden.org/apps/soylatteopenjdk-intel
  [3]: https://www.blogger.com/comment.g?blogID=36773632&postID=5736543463855781104&bpli=1
  [4]: https://web.archive.org/web/20150705105354/https://wikis.oracle.com/display/OpenJDK/Darwin9Build