How to Use The Google Closure Compiler with AEM 6.2+

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The Google Closure Compiler was added to AEM in version 6.2 as a new script compiler bundle. This means that AEM can now use the Closure Compiler to code-check and minify JavaScript instead of using the YUI Compressor, which is buggy and was last released on 07/03/2013 (at the time of this post).
To check if the Closure Compiler bundle is installed, go to Bundles /system/console/bundles and search for “Google Closure Compiler.”
Here is how you can make Closure Compiler the default minifier in AEM:

1. Go to Apache Felix Config Manager: /system/console/configMgr
2. Search for “Adobe Granite HTML Library Manager”
   
3. Open the config and make sure “minify”  is enabled
4. Set the field “JS Processor Default Configs” to “min:gcc” or “min:gcc;obfuscate=true” to enable obfuscation
   
5. Voila!

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