throws XmlPullParserException {
        if (s != null) {
            try {
                return Double.valueOf(s).doubleValue();
            } catch (NumberFormatException nfe) {
                if (strict) {
                    throw new XmlPullParserException(

        // Double
        final Object doubleResult = groovyEngine.evaluate("return 3.14159", params);
        assertTrue(doubleResult instanceof Number);
        Assertions.assertEquals(3.14159, ((Number) doubleResult).doubleValue(), 0.00001);

        // Boolean
        assertEquals(true, groovyEngine.evaluate("return true", params));
        assertEquals(false, groovyEngine.evaluate("return false", params));

        // Null

    return longBitsToDouble(significand | ONE_BITS);
  }

  static double bigToDouble(BigInteger x) {
    // This is an extremely fast implementation of BigInteger.doubleValue(). JDK patch pending.
    BigInteger absX = x.abs();
    int exponent = absX.bitLength() - 1;
    // exponent == floor(log2(abs(x)))
    if (exponent < Long.SIZE - 1) {
      return x.longValue();

    private BigDecimalToDoubleRounder() {}

    @Override
    double roundToDoubleArbitrarily(BigDecimal bigDecimal) {
      return bigDecimal.doubleValue();
    }

    @Override
    int sign(BigDecimal bigDecimal) {
      return bigDecimal.signum();
    }

    @Override
    BigDecimal toX(double d, RoundingMode mode) {
      return new BigDecimal(d);

        final Object value = map.get(key);
        if (value == null) {
            return defaultValue;
        }
        if (value instanceof Number numValue) {
            return numValue.doubleValue();
        }
        return Double.parseDouble(value.toString());
    }

    /**
     * Gets a Boolean value from the map.
     *
     * @param map The source map

  }

  private static class NumberOrdering extends Ordering<Number> {
    @Override
    public int compare(Number a, Number b) {
      return ((Double) a.doubleValue()).compareTo(b.doubleValue());
    }

    @Override
    public int hashCode() {
      return NumberOrdering.class.hashCode();
    }

    @Override
    public boolean equals(@Nullable Object other) {

  }

  private static class NumberOrdering extends Ordering<Number> {
    @Override
    public int compare(Number a, Number b) {
      return ((Double) a.doubleValue()).compareTo(b.doubleValue());
    }

    @Override
    public int hashCode() {
      return NumberOrdering.class.hashCode();
    }

    @Override
    public boolean equals(@Nullable Object other) {