The focus behavior of Swing toggle button controls (JRadioButton and JCheckBox) changed when they belonged to a button group. Now, if the input focus is requested to any toggle button in the group through either focus traversal or window activation, the currently selected toggle button is focused regardless of the focus traversal policy used in the container. If the selected toggle button is not eligible to be a focus owner, the focus is set according to the focus traversal policy.
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