My current JDK on Mac OS (10.6) is set to 1.6 and I'd like to switch to 1.5.
A listing of '/System/Library/Frameworks/JavaVM.framework/Versions/' shows:
lrwxr-xr-x 1 root wheel 10 Nov 3 18:34 1.5 -> CurrentJDK
lrwxr-xr-x 1 root wheel 10 Nov 3 18:34 1.5.0 -> CurrentJDK
lrwxr-xr-x 1 root wheel 5 Nov 3 18:34 1.6 -> 1.6.0
drwxr-xr-x 8 root wheel 272 Nov 3 19:54 1.6.0
drwxr-xr-x 9 root wheel 306 Nov 3 19:54 A
lrwxr-xr-x 1 root wheel 1 Nov 3 18:34 Current -> A
lrwxr-xr-x 1 root wheel 3 Nov 3 18:34 CurrentJDK -> 1.6
Aside from attempting to install 1.5 and then change the symlink for 'CurrentJDK' from 1.6 to 1.5, is there anything else that needs to be done?
Do I also need to change what 'Current' is pointing to? The 'A' directory seems to contain the Headers and the binary executables (javac, jar, etc).
Will another version of the JDK install a second directory for it's version of the executables (hopefully in a separate directory) or are they independent of the JDK version?
FYI: I've run the 'Java Preferences' utility and only Java SE 6 (32 & 64-bit versions) is listed under both 'Java Apple Plugin' and 'Java Applications'
Best Solution
There is no supported means of getting a real 1.5 onto SnowLeopard. There are ways to make it work if you are brave.
See this discussion
The Guts Of The Matter Are Here