Simple filter is NOT case sensitive.

Hi,
We are using Smart Gwt-4.1p (23rd May 2014)
Browser: IE10, 11, Google Chrome:37.0.2062.124 m

I want to make a simple filter as case sensitive.
Can you explain, how to make a simple filter as case sensitive?
I have attached my code.

Thanks.

Attached Images

Simple_filter.png (16.6 KB)

Attached Files

TestsmartGwtProject.java (4.6 KB)