ActionListeners on JRadioButtons don't get notified when selection is changed
with arrow keys. If radio buttons are part of a button group, using the arrow keys to select a
radio button does not fire action listeners.
See this closed bug: https://bugs.openjdk.java.net/browse/JDK-6314014
To reproduce this, run the RadioButtonDemo:
Use the up and down arrows to change the selection. Note that the selection
appears to change, but the picture doesn't change until the space bar is
Arrows should either just change the focus without changing the selection,
or the selection should fire action listeners.