Apple released a Developer Preview of Java 1.4.1. Details posted in this mailing list email (Username/Pass: archives/archives):
No definitive date for final release. Apple's implementation of Java 1.4 has been discussed since February
The wait is over! Apple is excited to announce our first official
Developer Preview of Java 1.4.1 for Mac OS X version 10.2!
No definitive date for final release. Apple's implementation of Java 1.4 has been discussed since February