I have a n Intel iMac, I've just downloaded the latest version of Art of Illusion and it won't run. I get "Cannot launch java application. Uncaught exception in main method: java.lang.ArrayIndexOutOfBoundsException:0"
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I believe this is caused by an incompatibility with something you've installed in your Java extensions folder. Take a look in /Library/Java/Extensions and /Users/(your name)/Library/Java/Extensions. Try moving files out of there, and see if that makes AoI start working.
Closing due to no repro.