I have trouble understanding (actual paths vs links) for multiple java versions on my Mac OSX. Normally in windows if I have multiple versions installed in my machine, I can
Most possibly you only have one jdk installed, thus all the soft links points to the same jdk. If you however did have multiple jdks installed you would need to choose which one to use with the 'Java Preferences' app in your /Application/Utilities.
Soft links are by the way created with the ln -s command from Terminal.