KeySpec keySpec = new PBEKeySpec(password, salt, PBKDF2_ITERATIONS, KEY_SIZE);
        SecretKey tempKey = keyFactory.generateSecret(keySpec);
        return new SecretKeySpec(tempKey.getEncoded(), KEY_ALGORITHM);
    }

    /**
     * Convert char array to byte array (UTF-8)
     */
    private byte[] charsToBytes(char[] chars) {
        if (chars == null) {
            return null;

        if (EXT_GSS_CONTEXT_CLASS.isAssignableFrom(this.gssContext.getClass())) {
            try {
                Key k = (Key) INQUIRE_SEC_CONTEXT.invoke(this.gssContext, INQUIRE_TYPE_SESSION_KEY);
                return k.getEncoded();
            } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException ex) {
                throw new SmbException("Failed to query Kerberos session key from ExtendedGSSContext", ex);

        }

        // Try to get from SecretKey if available
        SecretKey secretKey = getSessionKey(sessionId);
        if (secretKey != null) {
            return secretKey.getEncoded();
        }

        return null;
    }

    /**
     * Remove and securely wipe a session key
     *
     * @param sessionId unique session identifier
     */

        final Type1Message type1Message = new Type1Message(cifsContext, TYPE_1_FLAGS, domain, workstation);
        return Base64.getEncoder().encodeToString(type1Message.toByteArray());
    }

    /**
     * Generates a Type 3 NTLM message.
     *
     * @param username the username
     * @param password the password
     * @param domain the domain

     */
    public static String encode(final byte[] inData) {
        if (ArrayUtil.isEmpty(inData)) {
            return "";
        }
        return Base64.getEncoder().encodeToString(inData);
    }

    /**
     * Decodes data encoded in Base64.
     * <p>
     * This method uses {@link java.util.Base64.Decoder} for decoding.
     * </p>
     *
     * @param inData

        assertNotNull(id);
        assertEquals(Base64.getEncoder().encodeToString(text.getBytes(CoreLibConstants.CHARSET_UTF_8)), id);

        // Test empty text
        String emptyText = "";
        String emptyId = SuggestUtil.createSuggestTextId(emptyText);
        assertNotNull(emptyId);
        assertEquals(Base64.getEncoder().encodeToString(emptyText.getBytes(CoreLibConstants.CHARSET_UTF_8)), emptyId);

        if (StringUtil.isNotBlank(username) && StringUtil.isNotBlank(password)) {
            final String value = username + ":" + password;
            final String basicAuth = "Basic " + java.util.Base64.getEncoder().encodeToString(value.getBytes(StandardCharsets.UTF_8));
            request.header("Authorization", basicAuth);
        }
        if (sslSocketFactory != null) {
            request.sslSocketFactory(sslSocketFactory);

    /** Settings ID. */
    protected final String settingsId;
    /** Suggest settings. */
    protected final SuggestSettings settings;

    private static final Base64.Encoder encoder = Base64.getEncoder();

    /**
     * Constructor.
     * @param settings Suggest settings
     * @param client OpenSearch client
     * @param settingsIndexName Settings index name
     * @param settingsId Settings ID

        }

        // Total message length is 154 bytes
        byte[] finalMessage = new byte[154];
        System.arraycopy(message, 0, finalMessage, 0, 154);

        return Base64.getEncoder().encodeToString(finalMessage);
    }

    @BeforeEach
    public void setUp() throws UnknownHostException {
        ntlmSsp = new NtlmSsp();

 */
public final class SuggestUtil {
    private static final int MAX_QUERY_TERM_NUM = 5;
    private static final int MAX_QUERY_TERM_LENGTH = 48;

    private static final Base64.Encoder encoder = Base64.getEncoder();

    private static final int ID_MAX_LENGTH = 445;

    /**
     * Private constructor to prevent instantiation.
     */
    private SuggestUtil() {
    }

    /**