By default, Snow Leopard does not include Java 1.5 anymore. All the Java 1.5 softlinks points to the Java 1.6 library. If you want to install Java 1.5, you must install it manually.
In the terminal: Get the java 5 that was included in 10.5 'leopard' and unpack cd /tmp/ curl -o java.1.5.0-leopard.tar.gz tar -xvzf java.1.5.0-leopard.tar.gz Move it to your System java folder (password needed) sudo mv 1.5.0 /System/Library/Frameworks/JavaVM.framework/Versions/1.5.0-leopard Tell OS X that java 5 actually is java 5 cd /System/Library/Frameworks/JavaVM.framework/Versions/ sudo rm 1.5.0 sudo ln -s 1.5.0-leopard 1.5.0 sudo rm 1.5 sudo ln -s 1.5.0 1.5 Open Java Preferences open '/Applications/Utilities/Java Preferences.app' Change the properties to use Java 5 32-bit by default.
Java for Mac OS X 10.5 Update 10 delivers improved compatibility, security, and reliability by updating J2SE 5.0 to 1.5.030, and updating Java SE 6 to 1.6.026 for 64-bit capable Intel-based Macs. J2SE 1.4.2 is no longer being updated to fix bugs or security issues and remains disabled by default in this update.
Java On Mac
Please quit any web browsers and Java applications before installing this update. See for more details about this update. See for information about the security content of this update. See on how to verify the authenticity of this update.