}

        // Support 2^31 as maximum denominator.
        // This is negative as an integer so convert to long.
        final long maxDen = Math.abs((long) maxDenominator);

        long p0 = 1;
        long q0 = 0;
        long p1 = a0;
        long q1 = 1;

        long p2;
        long q2;

        int n = 0;
        boolean stop = false;
        do {
            ++n;
            final double r1 = 1.0 / (r0 - a0);
            final long a1 = (long) Math.floor(r1);
            p2 = (a1 * p1) + p0;
            q2 = (a1 * q1) + q0;
            if (Long.compareUnsigned(p2, OVERFLOW) > 0 ||
                Long.compareUnsigned(q2, OVERFLOW) > 0) {
                // In maxDenominator mode, fall-back to the previous valid fraction.
                if (epsilon == 0) {

if (epsilon == 0) {
                    p2 = p1;
                    q2 = q1;
                    break;
                }
                throw new FractionException(FractionException.ERROR_CONVERSION_OVERFLOW, value, p2, q2);
            }

            final double convergent = (double) p2 / (double) q2;
            if (n < maxIterations &&
                Math.abs(convergent - absValue) > epsilon &&
                q2 < maxDen) {
                p0 = p1;
                p1 = p2;
                q0 = q1;
                q1 = q2;
                a0 = a1;
                r0 = r1;
            } else {
                stop = true;
            }
        } while (!stop);

        if (n >= maxIterations) {
            throw new FractionException(FractionException.ERROR_CONVERSION, value, maxIterations);
        }