* @return true if the crawling should continue, false otherwise.
     */
    protected boolean isContinue(final int tcCount) {
        if (!crawlerContainer.available()) {
            // system shutdown
            return false;
        }

        boolean isContinue = false;
        if (tcCount < crawlerContext.maxThreadCheckCount) {

    }

    private static final Logger log = LoggerFactory.getLogger(NtlmHttpFilter.class);

    private String defaultDomain;
    private String domainController;
    private boolean loadBalance;
    private boolean enableBasic;
    private boolean insecureBasic;
    private String realm;

    private CIFSContext transportContext;
    private Address[] dcList = null;
    private long dcListExpiration;

   * @param columnKey key of column to search for
   */
  boolean contains(
      @CompatibleWith("R") @Nullable Object rowKey,
      @CompatibleWith("C") @Nullable Object columnKey);

  /**
   * Returns {@code true} if the table contains a mapping with the specified row key.
   *
   * @param rowKey key of row to search for
   */
  boolean containsRow(@CompatibleWith("R") @Nullable Object rowKey);

  /**

    protected int bufParameterStart;
    /** Start position of data bytes in the buffer */
    protected int bufDataStart;

    int dataCount;
    byte subCommand;
    volatile boolean hasMore = true;
    volatile boolean isPrimary = true;
    byte[] txn_buf;

    /* for doNetEnum and doFindFirstNext */
    private int status;
    private int numEntries;
    private FileEntry[] results;

    /**

     */
    @SuppressWarnings("CatchingUnchecked") // sneaky checked exception
    private void workOnQueue() {
      boolean interruptedDuringTask = false;
      boolean hasSetRunning = false;
      try {
        while (true) {
          synchronized (queue) {
            // Choose whether this thread will run or not after acquiring the lock on the first

     */
    @SuppressWarnings("CatchingUnchecked") // sneaky checked exception
    private void workOnQueue() {
      boolean interruptedDuringTask = false;
      boolean hasSetRunning = false;
      try {
        while (true) {
          synchronized (queue) {
            // Choose whether this thread will run or not after acquiring the lock on the first

    String s1 = "foo";
    String s2 = MoreObjects.firstNonNull(s1, "bar");
    assertSame(s1, s2);

    Long n1 = 42L;
    Long n2 = MoreObjects.firstNonNull(null, n1);
    assertSame(n1, n2);

    Boolean b1 = true;
    Boolean b2 = MoreObjects.firstNonNull(b1, null);
    assertSame(b1, b2);
  }

  public void testFirstNonNull_throwsNullPointerException() {

    String s1 = "foo";
    String s2 = MoreObjects.firstNonNull(s1, "bar");
    assertSame(s1, s2);

    Long n1 = 42L;
    Long n2 = MoreObjects.firstNonNull(null, n1);
    assertSame(n1, n2);

    Boolean b1 = true;
    Boolean b2 = MoreObjects.firstNonNull(b1, null);
    assertSame(b1, b2);
  }

  public void testFirstNonNull_throwsNullPointerException() {

        // Check for delete access separately as it may require special handling
        final boolean hasDeleteAccess = (access & DELETE) != 0;
        final boolean hasWriteAccess =
                (access & (GENERIC_WRITE | FILE_WRITE_DATA | FILE_APPEND_DATA | FILE_WRITE_ATTRIBUTES | FILE_WRITE_EA)) != 0;
        final boolean hasReadAccess = (access & (GENERIC_READ | FILE_READ_DATA | FILE_READ_ATTRIBUTES | FILE_READ_EA)) != 0;

     *            The time to wait (in milliseconds)
     * @return <code>true</code> if the thread has terminated
     * @throws InterruptedException
     *             If interrupted while waiting
     */
    public boolean stop(final long timeoutMillis) throws InterruptedException {
        final Thread t = this.thread;
        synchronized (this) {
            if (t == null) {
                return true;
            }