private JPanel createRadioButtonPanel() {

		JPanel panel = new JPanel();
		BoxLayout bl = new BoxLayout(panel, BoxLayout.X_AXIS);
		panel.setLayout(bl);

		ButtonGroup group = new ButtonGroup();
		defaultRB = new GRadioButton("Default", true);
		defaultRB.addActionListener(ev -> model.defaultSelected());
		defaultRB.setToolTipText("Use default fallthrough address");
		defaultRB.getAccessibleContext().setAccessibleName("Default");

		userRB = new GRadioButton("User", false);
		userRB.addActionListener(ev -> model.userSelected());
		userRB.setToolTipText("Override default fallthrough address");
		userRB.getAccessibleContext().setAccessibleName("User");
		group.add(defaultRB);
		group.add(userRB);

		panel.add(defaultRB);
		panel.add(userRB);
		panel.getAccessibleContext().setAccessibleName("Radio Buttons");
		JPanel outerPanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
		outerPanel.add(panel);
		outerPanel.getAccessibleContext().setAccessibleName("Radio Button");
		return outerPanel;
	}
Dialog to prompt for overriding a fallthrough address on an instruction.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/fallthrough/FallThroughDialog.java