8160974: [TESTBUG] Mark more headful tests with @key headful.
Reviewed-by: serb, simonis

8063106: Change open swing regression tests to avoid sun.awt.SunToolkit.realSync, part 1
Reviewed-by: pchelko, serb

7107099: JScrollBar does not show up even if there are enough lebgth of textstring in textField
Reviewed-by: alexp