*
     * @param crawlerThread the thread to wait for; null threads are ignored
     */
    private void joinCrawlerThread(final Thread crawlerThread) {
        if (crawlerThread != null) {
            try {
                crawlerThread.join();
            } catch (final Exception e) {
                logger.info("Interrupted crawling process: name={}", crawlerThread.getName());

            executorService.awaitTermination(60, TimeUnit.SECONDS);
        } catch (final InterruptedException e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Interrupted.", e);
            }
        } finally {
            executorService.shutdownNow();
        }
        return totalCount;
    }

            });

            try {
                latch.await();
            } catch (final InterruptedException ignore) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Interrupted.", ignore);
                }
                exitCode.set(1);
            }
        }

        if (ComponentUtil.getFessConfig().isSuggestSearchLog()) {

   * specified {@link MoreExecutors#directExecutor()}, those objects will be closed synchronously.
   *
   * @param mayInterruptIfRunning {@code true} if the thread executing this task should be
   *     interrupted; otherwise, in-progress tasks are allowed to complete, but the step will be
   *     cancelled regardless
   * @return {@code false} if the step could not be cancelled, typically because it has already

                            totalDrained.addAndGet(drained.size());
                        }
                    }
                } catch (InterruptedException e) {
                    Thread.currentThread().interrupt();
                } finally {
                    doneLatch.countDown();
                }
            });
        }

        startLatch.countDown();

      } catch (Throwable t) {
        ListenableFuture<V> result = setException(t) ? futureValue : fullyFailedFuture(t);
        if (t instanceof InterruptedException) {
          Thread.currentThread().interrupt();
        }
        return result;
      }
    }

    public long elapsedNanos() {
      return stopwatch.elapsed(NANOSECONDS);
    }

    @Override

      } catch (Throwable t) {
        ListenableFuture<V> result = setException(t) ? futureValue : fullyFailedFuture(t);
        if (t instanceof InterruptedException) {
          Thread.currentThread().interrupt();
        }
        return result;
      }
    }

    public @Nullable V compute(
        K key, BiFunction<? super K, ? super @Nullable V, ? extends @Nullable V> function) {

SimpleStmt = EmptyStmt | ExpressionStmt | SendStmt | IncDecStmt | Assignment | ShortVarDecl .
</pre>

<h3 id="Terminating_statements">Terminating statements</h3>

<p>
A <i>terminating statement</i> interrupts the regular flow of control in
a <a href="#Blocks">block</a>. The following statements are terminating:
</p>

<ol>
<li>
	A <a href="#Return_statements">"return"</a> or