protected CrawlerClientFactory crawlerClientFactory;

    /**
     * List of URLs to be deleted, cached for batch processing.
     * All access is synchronized via indexUpdateCallback lock.
     */
    protected List<String> deleteUrlList = new ArrayList<>();

    /** Maximum size of the delete URL cache before batch deletion is triggered. */
    protected int maxDeleteDocumentCacheSize;

                        }
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                } finally {
                    latch.countDown();
                }
            });
        }

        // Then
        assertTrue(latch.await(10, TimeUnit.SECONDS));
        executor.shutdown();

Klaus Post <******@****.***> 1759093161 +0200

        try {
            return ps.execute();
        } catch (final SQLException ex) {
            throw new SQLRuntimeException(ex);
        }
    }

    /**
     * Executes a batch update.
     *
     * @param ps
     *            {@link PreparedStatement}. Must not be {@literal null}.
     * @return An array of the number of rows affected by each command in the batch.
     * @throws SQLRuntimeException

                } catch (final Exception e) {
                    logger.warn("Could not close a process error stream.", e);
                } finally {
                    latch.countDown();
                }
            }, "ProcessCloser-error-" + sessionId).start();
            new Thread(() -> {
                try {
                    CloseableUtil.closeQuietly(process.getOutputStream());
                } catch (final Exception e) {

  /** Invokes {@code latch.}{@link CountDownLatch#await() await()} uninterruptibly. */
  @J2ktIncompatible
  @GwtIncompatible // concurrency
  public static void awaitUninterruptibly(CountDownLatch latch) {
    boolean interrupted = false;
    try {
      while (true) {
        try {
          latch.await();
          return;
        } catch (InterruptedException e) {
          interrupted = true;

    //                                                                           =========
    /** Helper for key match operations. */
    @Resource
    private KeyMatchHelper keyMatchHelper;

    /** Service for key match operations. */
    @Resource
    private KeyMatchService keyMatchService;

    /** Pager for key match list pagination. */
    @Resource
    private KeyMatchPager keyMatchPager;

    do {
      System.runFinalization();
      if (latch.getCount() == 0) {
        return;
      }
      System.gc();
      try {
        if (latch.await(1L, SECONDS)) {
          return;
        }
      } catch (InterruptedException ie) {
        throw new RuntimeException("Unexpected interrupt while waiting for latch", ie);
      }
    } while (System.nanoTime() - deadline < 0);

            CountDownLatch latch = new CountDownLatch(1);

            Thread waiter = new Thread(() -> {
                synchronized (response) {
                    try {
                        if (!response.isReceived()) {
                            response.wait(1000);
                        }
                        latch.countDown();
                    } catch (InterruptedException e) {

    do {
      System.runFinalization();
      if (latch.getCount() == 0) {
        return;
      }
      System.gc();
      try {
        if (latch.await(1L, SECONDS)) {
          return;
        }
      } catch (InterruptedException ie) {
        throw new RuntimeException("Unexpected interrupt while waiting for latch", ie);
      }
    } while (System.nanoTime() - deadline < 0);