Java 1.3.1 Available for Mac OS X
moofman and TheAJofOZ write in that Java 1.3.1 Update 1 is available for Mac OS X. The new release offers text, mouse, and printing improvements, as well as better overall stability and compatibility. Mac OS X 10.1.3 is a prerequisite. Get it via Software Update, or download it from Apple. For more information, check out the developer release notes.
This update apparently improves graphics hardware acceleration for Java (haven't tested it yet). It's still somewhat experimental, so you have to turn it on manually. With the new update, you specify the video cards for which you want it enabled. The release notes explain how to do this, but give the wrong path for the config file that has the names of the video cards your machine might support. The correct path seems to be:
/Library/Java/Home/lib/glconfigurationlist.propert ies
Curious to see if there's an improvement. Though the low-level stuff is blazingly fast on OS X, the high-level, especially Swing, has been pretty sluggish.