public void start() {
            try {
                server.start();
            } catch (final Exception e) {
                throw new CrawlerSystemException(e);
            }
        }

        public void stop() {
            try {
                server.stop();
                server.join();
            } catch (final Exception e) {
                throw new CrawlerSystemException(e);
            }

        body.crudMode = CrudMode.CREATE;
        final DuplicateHost duplicateHost = getDuplicateHost(body).map(entity -> {
            try {
                duplicateHostService.store(entity);
            } catch (final Exception e) {
                logger.warn("Failed to process a request.", e);
                throwValidationErrorApi(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, buildThrowableMessage(e)));

        // Test shutdown without listener should throw NullPointerException
        try {
            jobExecutor.shutdown();
            fail("Expected NullPointerException");
        } catch (NullPointerException e) {
            // Expected exception
            assertNotNull(e);
        }
    }

    public void test_shutdown_multipleCalls() {
        // Test multiple shutdown calls

                    try {
                      AbstractExecutionThreadService.this.run();
                    } catch (Throwable t) {
                      restoreInterruptIfIsInterruptedException(t);
                      try {
                        shutDown();
                      } catch (Exception ignored) {
                        restoreInterruptIfIsInterruptedException(ignored);

    }

    private static File createTempFile() {
        try {
            File tempFile = File.createTempFile("test-system", ".properties");
            tempFile.deleteOnExit();
            return tempFile;
        } catch (IOException e) {
            logger.warn("Failed to create temp file, using null", e);
            return null;
        }
    }

    private void loadTestProperties() {

                    java.lang.reflect.Field realmField = NetworkExplorer.class.getDeclaredField("realm");
                    realmField.setAccessible(true);
                    realmField.set(this, "jCIFS");
                } catch (Exception e) {
                    throw new ServletException(e);
                }
            }
        };

        assertDoesNotThrow(() -> networkExplorer.init(servletConfig));

                    return true;
                }

            } catch (InterruptedException e) {
                log.debug("RDMA recovery interrupted");
                Thread.currentThread().interrupt();
                break;
            } catch (Exception recoveryError) {
                log.warn("RDMA recovery attempt {} failed: {}", retryCount, recoveryError.getMessage());

        try {
            BaseConfiguration config = new BaseConfiguration(false);
            mockContext = new BaseContext(config);
            response = new SmbComNegotiateResponse(mockContext);
        } catch (Exception e) {
            throw new RuntimeException("Failed to set up test", e);
        }
    }

    @Test
    public void testConstructor() {
        assertNotNull(response);

            for (final Future<Integer> future : futures) {
                future.get();
            }
        } catch (final InterruptedException e) {
            // no thing to do
        } catch (final ExecutionException e) {
            // no thing to do
        }

        long elapsed = (System.nanoTime() - time) / 1000000;
        long wait = waittime * (numTasks - 1);

    void set(T instance, Object value) {
      try {
        field.set(instance, value);
      } catch (IllegalAccessException impossible) {
        throw new AssertionError(impossible);
      }
    }

    void set(T instance, int value) {
      try {
        field.set(instance, value);
      } catch (IllegalAccessException impossible) {
        throw new AssertionError(impossible);
      }
    }
  }