* over keys in the order they were first encountered in the input, and the values for each key
   * are iterated in the order they were encountered. If two values for the same key are {@linkplain
   * Object#equals equal}, the first value encountered is used.
   *
   * @throws NullPointerException if any key, value, or entry is null
   * @since 19.0
   */

	if err != nil {
		etcdLogOnceIf(ctx, err, "etcd-retrieve-keys")
		return nil, etcdErrToErr(err, client.Endpoints())
	}
	if resp.Count == 0 {
		return nil, errConfigNotFound
	}
	for _, ev := range resp.Kvs {
		if string(ev.Key) == key {
			return ev.Value, nil
		}
	}
	return nil, errConfigNotFound

        int minIndex = 0;
        for (int i = 1; i < keys.size(); i++) {
          if (keys.get(i) < keys.get(minIndex)) {
            minIndex = i;
          }
        }
        Optional<BinaryNode> leftChild = createTreap(keys.subList(0, minIndex));
        Optional<BinaryNode> rightChild = createTreap(keys.subList(minIndex + 1, keys.size()));
        return Optional.of(new BinaryNode(keys.get(minIndex), leftChild, rightChild));
      }

    resetContainer(mapEntry(k0(), v0()), mapEntry(k0(), v1()), mapEntry(k0(), v2()));

    assertEquals(3, multimap().size());
    assertEquals(3, multimap().entries().size());
    assertEquals(3, multimap().keys().size());

    assertEquals(1, multimap().keySet().size());
    assertEquals(1, multimap().asMap().size());
  }

class PacTest {

    private Map<Integer, KerberosKey> keys;

    @BeforeEach
    void setUp() {
        keys = new HashMap<>();
        // Use ARCFOUR-HMAC encryption type (23) which matches KERB_CHECKSUM_HMAC_MD5
        KerberosKey serverKey = new KerberosKey(new KerberosPrincipal("******@****.***"), "serverKey1234567".getBytes(),
                PacSignature.ETYPE_ARCFOUR_HMAC, 1);
        keys.put(PacSignature.ETYPE_ARCFOUR_HMAC, serverKey);
    }

    @Override
    public Object get(final Object key) {
        return getProperties().get(key);
    }

    @Override
    public String getProperty(final String key, final String defaultValue) {
        return getProperties().getProperty(key, defaultValue);
    }

    @Override
    public String getProperty(final String key) {
        return getProperties().getProperty(key);
    }

    @Override

         * causes problems matching keys in resolve() where an extra slash causes
         * a mismatch. This strips trailing slashes from all keys to eliminate
         * this problem.
         */
        int ki = key.length();
        while (ki > 1 && key.charAt(ki - 1) == '\\') {
            ki--;
        }
        if (ki < key.length()) {
            key = key.substring(0, ki);
        }

        authVector.add(new DERSequence(elementVector));

        byte[] token = new DERSequence(authVector).getEncoded();
        Map<Integer, KerberosKey> keys = new HashMap<>();

        // 2. WHEN
        KerberosRelevantAuthData relevantAuthData = new KerberosRelevantAuthData(token, keys);

        // 3. THEN
        assertNotNull(relevantAuthData, "The KerberosRelevantAuthData object should not be null.");

        int minIndex = 0;
        for (int i = 1; i < keys.size(); i++) {
          if (keys.get(i) < keys.get(minIndex)) {
            minIndex = i;
          }
        }
        Optional<BinaryNode> leftChild = createTreap(keys.subList(0, minIndex));
        Optional<BinaryNode> rightChild = createTreap(keys.subList(minIndex + 1, keys.size()));
        return Optional.of(new BinaryNode(keys.get(minIndex), leftChild, rightChild));
      }

    }

    /**
     * @param key
     * @return
     * @throws SmbException
     */
    protected Response createNotification(final Long key) throws SmbException {
        if (key == null) {
            // no valid header
            return null;
        }
        if (this.smb2) {
            if (key != -1) {
                return null;
            }