if (crawlingQueue.size() > maxCrawlingQueueSize) {
                crawlingQueue.poll();
            }
            crawlingQueue.add(urlQueue);
            return urlQueue;
        }

        synchronized (queueHolder) {
            urlQueue = waitingQueue.poll();
            if (urlQueue == null) {
                final List<OpenSearchUrlQueue> urlQueueList = fetchUrlQueueList(sessionId);

    boolean isRootOrShare() {
        // length == 0 should not happen
        return getUNCPath().length() <= 1;
    }

    /**
     * @throws MalformedURLException
     *
     */
    private synchronized void canonicalizePath() {
        final char[] in = this.url.getPath().toCharArray();
        final char[] out = new char[in.length];
        final int length = in.length;
        int prefixLen = 0, state = 0;

                            assertNotNull(name);
                            assertTrue(name.startsWith("thread"));
                        }
                    } catch (Exception e) {
                        synchronized (exceptions) {
                            exceptions.add(e);
                        }
                    } finally {
                        endLatch.countDown();
                    }
                }

     *
     * @return The configured SPNEGO authenticator instance
     * @throws SsoLoginException if SPNEGO initialization fails
     */
    protected synchronized org.codelibs.spnego.SpnegoAuthenticator getAuthenticator() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

                            crawlerContext.getRobotsTxtUrlSet().add("http://thread" + threadId + ".com/robots.txt");
                        }
                    } catch (Exception e) {
                        synchronized (exceptions) {
                            exceptions.add(e);
                        }
                    } finally {
                        endLatch.countDown();
                    }
                }

                    }
                });
            }
            final CrawlingConfigHelper crawlingConfigHelper = ComponentUtil.getCrawlingConfigHelper();
            synchronized (searchEngineClient) {
                final long deletedDocCount = deleteOldDocuments(searchEngineClient, docList);
                if (logger.isDebugEnabled()) {

          }
        }
      }
    clientListener.setNextEventDelegate(reconnectOnFailure)
    webSockets.add(client.newWebSocket(request, clientListener))
    attempts.await()
    synchronized(webSockets) {
      for (webSocket in webSockets) {
        webSocket.cancel()
      }
    }
  }

  @Test
  @Throws(Exception::class)
  fun compressedMessages() {

     */
    protected MinioClient minioClient;

    /**
     * Creates a new StorageClient instance.
     */
    public StorageClient() {
        super();
    }

    @Override
    public synchronized void init() {
        if (isInit) {
            return;
        }

        super.init();

        final Builder builder = MinioClient.builder();

 * methods for more details.
 *
 * <p>Note that this implementation is not synchronized. If multiple threads access the same cell of
 * an {@code ArrayTable} concurrently and one of the threads modifies its value, there is no
 * guarantee that the new value will be fully visible to the other threads. To guarantee that
 * modifications are visible, synchronize access to the table. Unlike other {@code Table}

                                }
                            }
                        }
                    } catch (Exception e) {
                        synchronized (exceptions) {
                            exceptions.add(e);
                        }
                    }
                }
            });
        }

        // Start all threads