I need to use .jnlp files but I have Yosemite. I have Java 6 and 8 installed. When I try to launch a jnlp file, it says I need the Java Runtime Environment. It wants to use Java 7 which I do not have and cannot install. How do I use .jnlp files on Yosemite? Is there a way to make them use Java 8 or 6?