*
 * <p>Each mapping item consists of one or more input character sequences that are mapped to a single output
 * character sequence. The mapping supports both original values and new values for update operations.</p>
 */
public class CharMappingItem extends DictionaryItem {
    /**
     * Array of input character sequences that will be mapped to the output sequence.
     * These represent the original/current input values for this mapping rule.

   * time and space.
   *
   * @throws IllegalArgumentException if {@code sequence} contains ill-formed UTF-16 (unpaired
   *     surrogates)
   */
  public static int encodedLength(CharSequence sequence) {
    // Warning to maintainers: this implementation is highly optimized.
    int utf16Length = sequence.length();
    int utf8Length = utf16Length;
    int i = 0;

    // This loop optimizes for pure ASCII.

	// was this heal sequence force started?
	forceStarted bool

	// heal settings applied to this heal sequence
	settings madmin.HealOpts

	// current accumulated status of the heal sequence
	currentStatus healSequenceStatus

	// channel signaled by background routine when traversal has
	// completed
	traverseAndHealDoneCh chan error

	// canceler to cancel heal sequence.
	cancelCtx context.CancelFunc

    }

    /**
     * Sets the sequence number for this heartbeat.
     * The sequence number should be incremented for each heartbeat request.
     *
     * @param sequenceNumber the sequence number
     */
    public void setSequenceNumber(long sequenceNumber) {
        this.sequenceNumber = sequenceNumber;
    }

    /**
     * Gets the sequence number.
     *
     * @return the sequence number
     */

        // 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");
    }

   * sequence. Returns a bogus matcher if the sequence contains supplementary characters.
   */
  public static CharMatcher anyOf(CharSequence sequence) {
    switch (sequence.length()) {
      case 0:
        return none();
      case 1:
        return is(sequence.charAt(0));
      case 2:
        return isEither(sequence.charAt(0), sequence.charAt(1));
      default:

            throws PACDecodingException {
        return as(type, sequence, index);
    }

    /**
     * Gets an element from an ASN1Sequence at the specified index and casts it to the specified type
     * @param <T> the target ASN.1 primitive type
     * @param type the target class type
     * @param sequence the ASN1Sequence

    }

    @Test
    @DisplayName("byte[] ctor: top-level non-SEQUENCE triggers PACDecodingException (type mismatch)")
    void byteArrayConstructor_topLevelNotSequence_throws() throws Exception {
        // Arrange: Encoded INTEGER instead of SEQUENCE
        byte[] notASequence = new ASN1Integer(42).getEncoded();

        // Act + Assert

        int index = offset;
        update(data, index, SmbConstants.SIGNATURE_OFFSET);
        index += SmbConstants.SIGNATURE_OFFSET;
        final byte[] sequence = new byte[8];
        SMBUtil.writeInt4(msg.getSignSeq(), sequence, 0);
        update(sequence, 0, sequence.length);
        index += 8;
        if (msg.getCommand() == ServerMessageBlock.SMB_COM_READ_ANDX) {
            /*

        }

        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;
    }

    /**