* {@link org.codelibs.core.convert.BinaryConversionUtil#toBinary(java.lang.Object)}
     * .
     */
    @Test
    public void testToBinary() {
        assertThat(BinaryConversionUtil.toBinary(null), nullValue());
        final byte[] b = { 0x00, 0x01 };
        assertThat(BinaryConversionUtil.toBinary(b), is(b));
        assertThat(BinaryConversionUtil.toBinary("hoge"), is("hoge".getBytes()));
    }

    /**

    }

    /**
     * Converts to a {@literal byte} array.
     *
     * @param o
     *            The object to convert
     * @return The {@literal byte} array
     */
    public static byte[] toBinary(final Object o) {
        if (o instanceof byte[]) {
            return (byte[]) o;
        } else if (o == null) {
            return null;
        } else {