Portable JDK?

I had originally asked this in the Java Portable release news thread, foolish of me I know, but anyway... is there any way way that we could have the option when we install Java Portable to install the JDK instead of just the runtime? I realize this would not be useful to most users, but it could be useful to some (including myself). In the mean time, is there any way to manually install it, a la install Java Portable and then just drop in the JDK files? Thanks