*/
    public static Double toDouble(final Object o) {
        return toDouble(o, null);
    }

    /**
     * Converts to {@link Double}.
     *
     * @param o
     *            The object to convert
     * @param pattern
     *            The pattern string
     * @return The converted {@link Double}
     */
    public static Double toDouble(final Object o, final String pattern) {

public class DoubleConversionUtilTest extends TestCase {

    /**
     * @throws Exception
     */
    public void testToDouble() throws Exception {
        assertEquals(Double.valueOf("1000.5"), DoubleConversionUtil.toDouble("1,000.5"));
    }

    /**
     * @throws Exception
     */
    public void testToPrimitiveDouble() throws Exception {
        assertEquals(1000.5, DoubleConversionUtil.toPrimitiveDouble("1,000.5"), 0);
    }

        } else if (type == BigDecimal.class) {
            return BigDecimalConversionUtil.toBigDecimal(o);
        } else if (type == Double.class) {
            return DoubleConversionUtil.toDouble(o);
        } else if (type == Long.class) {
            return LongConversionUtil.toLong(o);
        } else if (type == Float.class) {
            return FloatConversionUtil.toFloat(o);

                args[index] = FloatConversionUtil.toFloat(args[index]);
                return true;
            } else if (paramTypes[index] == double.class) {
                args[index] = DoubleConversionUtil.toDouble(args[index]);
                return true;
            }
        } else {
            if (paramTypes[index] == Byte.class) {
                args[index] = ByteConversionUtil.toByte(args[index]);

                if (value instanceof final Number num) {
                    value = num.doubleValue();
                } else {
                    value = DfTypeUtil.toDouble(value.toString());
                }
            }
            return new Pair<>(key, value);
        }).collect(Collectors.toMap(Pair::getFirst, Pair::getSecond));
    }