You need to deodex your firmware before do this!
Look at the attachment bellow.
How to apply this? Just download the required file for your FW, extract it, copy to your sdcard, open adb and run this command:
adb shell su stop mount -o rw,remount /system cp /sdcard/<your file>.jar /system/framework mount -o ro,remount /system reboot
Report me if you have any problem (e.g. bootloop)
If you want to build a rom with my overscroll, please give me credit