That just takes you to this Oracle website where you can download the latest installer for either the Java 8 JRE (the runtime, for most users) or the Java 8 JDK (the Java development kit, for developers).
And if you don't have Java 6 from Apple installed on the machine, which is not included in recent versions of the OS but still available for download from Apple at this location (but it's pretty out of date at this point), then you just get an error message dialogue: "To open YourApp.app you need to install the legacy Java SE 6 runtime." with a link to Apple's outdated implementation, even though you already have Oracle's Java 8 installed already.
Download Java Se 6 Runtime For Mac Yosemite
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