ScrollBar Thumb in synth Look and Feel does not get repaint properly if we keep mouse pressed on one of its ArrowButton.
Steps to Reproduce
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1)Compile all attached ".java" files
2)Run "JScrollBarExample.java" with "ScrollBar.xml"
3)A frame come up on screen with Horizontal and Vertical ScrollBars.
4)Do Mouse Click some where on the Track of Vertical ScrollBar,Thumb moves at clicked location.
5)Keep pressing "UP" ArrowButton of Vertical ScrollBar.
size of thumb increasing ,click again somewhere on track and Thumb size becomes normal.
Note:It works fine if click anywhere on ScrollBar Track.