--- old/src/java.desktop/share/classes/javax/swing/plaf/metal/MetalRadioButtonUI.java	2016-01-25 00:13:30.000000000 +0400
+++ new/src/java.desktop/share/classes/javax/swing/plaf/metal/MetalRadioButtonUI.java	2016-01-25 00:13:30.000000000 +0400
@@ -244,7 +244,7 @@
                    // *** paint the text disabled
                    g.setColor(getDisabledTextColor());
                }
-               SwingUtilities2.drawStringUnderlineCharAt(c,g,text,
+               getTextUIDrawing().drawStringUnderlineCharAt(c,g,text,
                        mnemIndex, textRect.x, textRect.y + fm.getAscent());
            }
            if(b.hasFocus() && b.isFocusPainted() &&