A better example of how to add resources in Grails 2.x

ApplicationResource.groovy

modules = {
    application {
        resource url:'js/application.js'
    }

    bootstrap {
        resource url:'less/custom-bootstrap.less',attrs:[rel: "stylesheet/less", type:'css']
        dependsOn 'jquery'
        dependsOn 'bootstrapJs'
    }

    bootstrapJs {
        resource url:'js/bootstrap/bootstrap-affix.js'
        resource url:'js/bootstrap/bootstrap-alert.js'
        resource url:'js/bootstrap/bootstrap-button.js'
        resource url:'js/bootstrap/bootstrap-carousel.js'
        resource url:'js/bootstrap/bootstrap-collapse.js'
        resource url:'js/bootstrap/bootstrap-dropdown.js'
        resource url:'js/bootstrap/bootstrap-modal.js'
        resource url:'js/bootstrap/bootstrap-popover.js'
        resource url:'js/bootstrap/bootstrap-scrollspy.js'
        resource url:'js/bootstrap/bootstrap-tab.js'
        resource url:'js/bootstrap/bootstrap-tooltip.js'
        resource url:'js/bootstrap/bootstrap-transition.js'
        resource url:'js/bootstrap/bootstrap-typeahead.js'
    }
}