Java 1.3.1 and 1.4.2 Release 2
Now in Software Update:
Java 1.3.1 and 1.4.2 Release 2 delivers improved reliability and compatibility for Java on Mac OS X v10.4. This release includes Java 2 Platform Standard Edition versions 1.3.1_16 and 1.4.2_09.
The update, which is over 40MB, is also available for direct download.