How to compare JARs in Araxis Merge?

I'm using Araxis Merge to try and compare two Java archive 开发者_开发技巧files. I've done it in Beyond Compare but have recently switched to a Mac. Right now Araxis treats the JARs like files and I just see a lot of binary/hex stuff. I'd like to see which classes have differences and to treat the JAR like a folder. Any ideas?

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Decompress the contents of the archive to folders, and diff the folders

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A JAR file is basically a zip file with a different extension.
Araxis merge can't compare the content inside a zip file.

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A JAR file is basically a ZIP file with a different extension. Araxis Merge can't compare the content inside a ZIP file.

As a workaround, decompress the contents of the archive to folders. Then diff the folders.