http://www.apple.com/downloads/macos...4release7.html
Apple Java for Mac OS X 10.4 Release 7 [ 79.7Mb | Update | OS X 10.4/10.5]
Update delivers improved reliability and compatibility
http://www.apple.com/downloads/macos...05update2.html
Apple Java for Mac OS X 10.5 Update 2 [ 136.4Mb | Update | OSX 10.5+]
This release updates Java SE 6 to version 1.6.0_07, J2SE 5.0 to version 1.5.0_16, and J2SE 1.4.2 to 1.4.2_18.