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I really need some help out here! I'm a mac user for about 4/5 months and I'm struggling to open a .jar file! I keep getting the same message: "check console for errors". When I do, this is what I find: 09/02/19 22:41:27 [0x0-0x5d05d].com.apple.JarLauncher[330] Exception in thread "main"...