Grails 2.4 is now using the Asset Pipeline for managing and processing static assets in Grails applications instead of the Resources system. Th
You can create another folder like jsplugins near standard folders (javascripts, styles, images), then you can include js library in the necessary pages, if you wouldn't use this library on all the pages.
Make something like this:
NB: you can omit first level path under assets path, in this example it's jsplugins.
The best way is to use manifest.js file, where you can include necessary files via require directive.
You should use assests folder instead of web-app. During building war file all the files from assets will be copied to web-app folder.
Useful video from Bobby Warner: http://www.youtube.com/watch?v=VHDBlGtAHB4
Documentation: http://bertramdev.github.io/asset-pipeline/