public static long compute(byte[] bytes, int offset, int size) {
        Checksum crc = create();
        crc.update(bytes, offset, size);
        return crc.getValue();
    }
@Test
    public void testValue() {
        final byte[] bytes = "Some String".getBytes();
        assertEquals(608512271, Crc32C.compute(bytes, 0, bytes.length));
    }