If you go under the Java settings, you can designate which Java version to run with. You need use "View" under Temporary Internet Files on the General tab and find Haven & Hearth in the list of Applications (should be default view, but if not, use the list box in the top left corner to change views).
I'll note that there shouldn't be a reason to have more than one version of Java on your computer unless there is a compatibility issue with an app and a newer version or you're a developer.