use uglify2 optimize js but annotation still exist

[silentzone]

gruntfile :
requirejs: {
compile: {
options: {
optimize: "uglify2",
baseUrl: "resource/js",
mainConfigFile: 'resource/js/app.js',
name : "app",
out: "resource/js/r.app.js",

[silentzone]

r.app.js:
eval('/! jQuery v2.1.1 | (c) 2005, 2014 jQuery Foundation, Inc. | jquery.org/license */\n! ...somecode...
eval("/*\n * @license AngularJS v1.3.7\n * (c) 2010-2014 Google, Inc. http://angularjs.org\n * License: MIT\n */ ...somecode...