Mac OS X Lion and Java 7u4

Hi,
I just bought Mac OS X Lion for the single reason to use Java FX 2.1.
No Java preinstalled.
Then I downloaded and installed jdk-7u4-macosx-x64.dmg.
The I had the folder: /Library/Java which included JDK 1.7.
I tried to start IntelliJ 11. But it complains about that no Java Runtime is installed.
Then I started the 1.7.0.jdk file and it complained, too, that I'd need a JRE.
What the heck?
I followed the dialog and it downloaded an JRE, but it was JRE 1.6.0_31-b04-415-11M3646
I also noticed, that I have two folders:
/System/Library/Java
/Library/Java
The former is for 1.6, the latter 1.7.
I am very confused! Can somebody help?

IntelliJ 11 uses Apple's bundled Java application support. Bundled OS X Java applications built with Apple's tools require Apple's JDK 6 and cannot use Oracle's JDK. So, to run IntelliJ itself you need to install an Apple JDK first.
You now have two JDKs on your system: the Java 7 JDK from Oracle in /Library/Java/JavaVirtualMachines, and Java 6u31 from Apple in /System/Library/Java/JavaVirtualMachines. You can certainly use JDK 7 to run the code you are developing in IDEA, but not IDEA itself right now. IDEA will need to update their product to stop using Apple's deprecated technologies.
This is all correct behavior, but I do think the wording of the alert you get when you need to install an Apple JDK is confusing. We'll let Apple know.
-- Scott K.

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