Harbs- added <replaceregexp file="${basedir}/externs/js/externs/jquery-1.9.js" match="(\* @const\s+)([\*\s/]+var \$)" replace="\1* @type {jQuery}\n\2" flags="g" /> for handling of type of jQuery "$" global.
We need to replace:
/**
* @const
*/
var $ = jQuery;
with:
/**
* @const
* @type {jQuery}
*/
var $ = jQuery;