executor.shutdownNow();
            }
        } catch (InterruptedException e) {
            executor.shutdownNow();
            Thread.currentThread().interrupt();
        }
    }

    private void redistributePendingOperations(ChannelInfo failedChannel) {
        // Get pending operations from failed channel

            }

            @Override
            public void destroy() {
                // Override to avoid null pointer issues with thread
                generating = false;
                // Don't need to interrupt thread since we never start it in tests
            }
        };
        manager.init();
        assertTrue(manager.baseDir.exists());
        manager.destroy();
    }

    // Test initialization failure

    }

    @Override
    public void tearDown() throws Exception {
        if (indexUpdater != null && indexUpdater.isAlive()) {
            indexUpdater.setFinishCrawling(true);
            indexUpdater.interrupt();
            indexUpdater.join(1000);
        }
        super.tearDown();
    }

    // Test initialization
    public void test_init() {
        indexUpdater.init();

            task.start();
            task.join(timeout);
            if (!done.get()) {
                for (int i = 0; i < 100 && !done.get(); i++) {
                    task.interrupt();
                    ThreadUtil.sleep(100L);
                }
                throw new ExtractException("PDFBox process cannot finish in " + timeout + " sec.");
            }

                        assertTrue(pwd == null || pwd.equals("ConcurrentPass123!"));
                    }
                } catch (InterruptedException e) {
                    Thread.currentThread().interrupt();
                }
            });
        }

        // Start all threads
        for (Thread t : threads) {
            t.start();
        }

        // Wait for all threads to complete

                            }
                        });
                        successCount.incrementAndGet();
                    } catch (InterruptedException e) {
                        Thread.currentThread().interrupt();
                    } catch (CIFSException e) {
                        if (e.getMessage().contains("backpressure")) {
                            rejectedCount.incrementAndGet();
                        }

#   destroys some temporary bazel data and causes longer builds.
#
#   You will need the NVIDIA Container Toolkit for GPU testing:
#   https://github.com/NVIDIA/nvidia-container-toolkit
#
#   Note: if you interrupt a bazel command on docker (ctrl-c), you
#   will need to run `docker exec tf pkill bazel` to quit bazel.
#
#   Note: new files created from the container are owned by "root".

            throw new CrawlerSystemException("Process terminated.", e);
        } finally {
            if (mt != null) {
                mt.setFinished(true);
                try {
                    mt.interrupt();
                } catch (final Exception e) {}
            }
            if (currentProcess != null) {
                try {
                    currentProcess.destroy();

        if (t != null && Thread.currentThread() != t) {
            this.thread = null;
            try {
                log.debug("Interrupting transport thread");
                t.interrupt();
                log.debug("Joining transport thread");
                t.join(timeout);
                log.debug("Joined transport thread");
            } catch (final InterruptedException e) {

            if (!channelExecutor.awaitTermination(5, TimeUnit.SECONDS)) {
                channelExecutor.shutdownNow();
            }
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
        }
    }

    // Private helper methods

    private int getMaxChannelsFromConfig(Configuration config) {
        // In a real implementation, this would read from configuration