~/projects/jruby/tmp ➔ ls -la /System/Library/Frameworks/JavaVM.framework/Versions
total 56
drwxr-xr-x  15 root  wheel  510 Aug 20 22:36 .
drwxr-xr-x  11 root  wheel  374 Sep  9 05:27 ..
lrwxr-xr-x   1 root  wheel    5 Jan 18  2008 1.3 -> 1.3.1
drwxr-xr-x   3 root  wheel  102 Sep 29  2007 1.3.1
lrwxr-xr-x   1 root  wheel    5 Jan 18  2008 1.4 -> 1.4.2
lrwxr-xr-x   1 root  wheel    3 Jan 18  2008 1.4.1 -> 1.4
drwxr-xr-x   8 root  wheel  272 Jan 22  2007 1.4.2
lrwxr-xr-x   1 root  wheel    5 Jan 18  2008 1.5 -> 1.5.0
drwxr-xr-x   8 root  wheel  272 Jan 22  2007 1.5.0
lrwxr-xr-x   1 root  wheel   61 Jun 15 02:33 1.6.0 -> /System/Library/Frameworks/JavaVM.framework/Versions/soylatte
drwxr-xr-x   7 root  wheel  238 Jan 18  2008 A
lrwxr-xr-x   1 root  wheel    1 Jan 18  2008 Current -> A
lrwxr-xr-x   1 root  wheel    3 Jan 18  2008 CurrentJDK -> 1.5
drwxr-xr-x   3 root  wheel  102 Aug 20 22:36 openjdk7
drwxr-xr-x   3 root  wheel  102 Jan 19  2008 soylatte