Getting an error when using CFGRID after upgrading to CF11 Update 12.

After Upgrading to CF11 Update 12 CFGRID functionality is not working. I am getting an Undefined exception when I try to access CFGRID object from an AJAX call.

This issue is fixed in CF-4198947. It is fixed by replacing a Jar and Js file. But these files are not shared in the ticket. Can some one help me in getting those files.