Bug Info:
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I have found few observation in the look and feel perspective against the spinner.

1. Text selection in the JSpinner touches the spinner edges.But it should not touches as per the native reference and it should have one pixel gap on top and bottom.

2.As per native reference the cursor should blink at end of the selection text.But JSpinner should not have blinking cursor at end of the selection.

3.As per native reference the text should have two pixel gap between spinner buttons and text.But JSpinner has one pixel gap between the text and spinner button.

4.As per native reference the blinking cursor not touches the top and bottom edges of the spinner and it has one pixel gap.But JSpinner touches the edges of the spinner.