@Test
public void success_6() {

    String seed1 = "abcdfa";
    String seed2 = "234fad";
    String seed3 = "daf1-3";
    byte[] bytes = ByteUtils.join(seed1.getBytes(), seed2.getBytes(), seed3.getBytes());
    byte[] result = Hashes.hash(HashAlgorithm.SHA_512, bytes);
    assertThat(HexEncoder.getString(result), is("69aaaf4b6fc82362212a611caff822be8bb4b8d246c3cd33474914690b32e2bc79da889adae033ecef441a1663028a64ec8f860fb039974bb1bb37500218d998"));
}