Re: .jar and .zip Archives are Confused
I think .jar files are .zip files, just with java content. For example if you download .jar files in Internet Explorer it uses its own convoluted method to determine file type and incorrectly saves them with .zip filename extension.
But the only .jar files I run need parameters, so I never run them by double click, I either put scripts in my ~/bin to launch them or something like this in a desktop launcher:
sh -c 'java -Xmx2G -Xms1G -cp ~/MC-client/minecraft.jar net.minecraft.LauncherFrame'
i5 650 3.2 GHz, 8 GB, nvidia GTX 750 Ti, 32" 1080p | i7-4700MQ, 8 GB, Intel HD 4600/nvidia GTX 765M, 15.6" 1080p | etc.