Board Thread:LotR Mod Technical Support/@comment-29145474-20171130211333/@comment-25330335-20171201185108

In the menu bar at the top of your screen, use Go>Go to Folder and enter "/".

Then you can navigate to the directories that I've showed you, and you can see if you can find the correct jdk. Look in:

/Library/Java/JavaVirtualMachines

And see if there are any .jdk or .jre files in there. Those are really just directories anyway, so you can open them up and see. If there is nothing in there other than Java 6, you need to update java to java 8 or newer.