public static LongBinding addExact(final ObservableLongValue x, final ObservableLongValue y) {
        return createLongBinding(() -> Math.addExact(x.get(), y.get()), x, y);
    }
public static LongBinding addExact ( final ObservableLongValue x , final ObservableLongValue y ) { return createLongBinding ( ( ) -> Math . addExact ( x . get ( ) , y . get ( ) ) , x , y ) ; }
Binding for {@link java.lang.Math#addExact(long, long)}

@param x the first value
@param y the second value
@return the result
@throws ArithmeticException if the result overflows a long