In JDK edit mode, I select
/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home/docs.jar
Doesn't work. Shift-F1 does nothing. No error, no Safari, nothing.
So I try to open that up and select
/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Home/docs.jar!docs/api
and IDEA tells me in red in the file selection dialog that
Specified path cannot be fount
(That text should be selectable-copyable, BTW.)
So then I tried extracting the jar, then making a new jar of just the api folder from within docs.jar.
IDEA can't use that either. Again, shift-F1 does nothing.
If I select the api folder in the folder in which I extracted the docs.jar, that works.