} else {
        // Otherwise the rule is for a public suffix, so we must take one more label.
        domainLabels.size - (rule.size + 1)
      }

    return splitDomain(domain).asSequence().drop(firstLabelOffset).joinToString(".")
  }

  private fun splitDomain(domain: String): List<String> {
    val domainLabels = domain.split('.')

    if (domainLabels.last() == "") {

            }
        }
    }

    /**
     * @return the source file and it's source root
     */
    fun sourceFileAndSourceRootFor(sourceFilePath: String): Pair<File, File> =
        sourceRoots.asSequence()
            .map { it.resolve(sourceFilePath) to it }
            .firstOrNull { it.first.isFile }

   * Returns the number of bytes in the UTF-8-encoded form of {@code sequence}. For a string, this
   * method is equivalent to {@code string.getBytes(UTF_8).length}, but is more efficient in both
   * time and space.
   *
   * @throws IllegalArgumentException if {@code sequence} contains ill-formed UTF-16 (unpaired
   *     surrogates)
   */
  public static int encodedLength(CharSequence sequence) {

   * Returns the number of bytes in the UTF-8-encoded form of {@code sequence}. For a string, this
   * method is equivalent to {@code string.getBytes(UTF_8).length}, but is more efficient in both
   * time and space.
   *
   * @throws IllegalArgumentException if {@code sequence} contains ill-formed UTF-16 (unpaired
   *     surrogates)
   */
  public static int encodedLength(CharSequence sequence) {

     * When not null, indicates this item has pending updates.
     */
    private String newOutput;

    /**
     * Constructs a new CharMappingItem with the specified ID, input sequences, and output sequence.
     *
     * @param id the unique identifier for this mapping item
     * @param inputs array of input character sequences that will be mapped to the output

        return returnCode == 0;
    }

    /**
     * Gets the sequence number.
     *
     * @return the sequence number
     */
    public long getSequenceNumber() {
        return sequenceNumber;
    }

    /**
     * Sets the sequence number.
     *
     * @param sequenceNumber the sequence number
     */
    public void setSequenceNumber(long sequenceNumber) {

        // Test failed casting from sequence
        ASN1EncodableVector vector = new ASN1EncodableVector();
        vector.add(new ASN1Integer(10));
        ASN1Sequence sequence = new DERSequence(vector);
        assertThrows(PACDecodingException.class, () -> {
            ASN1Util.as(ASN1Boolean.class, sequence, 0);
        }, "Should throw PACDecodingException for incompatible types in sequence");
    }

        this.registrationId = registrationId;
    }

    /**
     * Gets the sequence number.
     *
     * @return the sequence number
     */
    public long getSequenceNumber() {
        return sequenceNumber;
    }

    /**
     * Sets the sequence number.
     *
     * @param sequenceNumber the sequence number
     */
    public void setSequenceNumber(long sequenceNumber) {

        authDataVector.add(new DERSequence(authElementVector));
        vector.add(new DERTaggedObject(10, new DERSequence(authDataVector)));

        DERSequence sequence = new DERSequence(vector);
        byte[] encoded = new DERTaggedObject(false, BERTags.APPLICATION, 1, sequence).getEncoded();

        KerberosEncData encData = new KerberosEncData(encoded, Collections.emptyMap());

        assertEquals("TEST.REALM", encData.getUserRealm());

        }

        ASN1Sequence sequence;
        try {
            try (ASN1InputStream stream = new ASN1InputStream(new ByteArrayInputStream(token))) {
                sequence = ASN1Util.as(ASN1Sequence.class, stream);
            }
        } catch (IOException e) {
            throw new PACDecodingException("Malformed Kerberos Ticket", e);
        }
        return sequence;
    }

    /**