Changing the width of a knob on a JSlider [duplicate]

This question already has answers here: 开发者_开发技巧 Set the size of a JSlider thumb (2 answers) Closed 9 years ago.

Ok, so I have searched google for a while now to see if I can find the answer to this but no dice. Maybe I am just searching for the wrong thing but this is what I want to know:

How do you change the width of the actual Knob on the JSlider component? NOT how to change the width of the JSlider.

Any help would be greatly appreciated!

---

   BasicSliderUI sliderUI = new javax.swing.plaf.basic.BasicSliderUI(jTimeSlider){
        protected Dimension getThumbSize() {
              return new Dimension(15, 20);
          }
      };
    jTimeSlider.setUI(sliderUI);

where dimension width is the width of the knob.