exceptions[index] = e;
                }
            });
        }

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

        // Wait for all threads to complete
        for (Thread thread : threads) {
            thread.join();
        }

        // Verify no exceptions occurred
        for (int i = 0; i < threadCount; i++) {

        // Multiple threads read the lastLoadedTime
        for (int i = 0; i < 10; i++) {
            final int index = i;
            threads[i] = new Thread(() -> {
                observedTimes[index] = testFactory.lastLoadedTime;
            });
        }

        for (Thread thread : threads) {
            thread.start();
        }

        for (Thread thread : threads) {
            thread.join();
        }

        // When - Multiple threads accessing trees concurrently
        for (int t = 0; t < threadCount; t++) {
            final int threadId = t;
            executor.submit(() -> {
                try {
                    startLatch.await(); // Wait for all threads to be ready

                    for (int i = 0; i < opsPerThread; i++) {

    /**
     * Interval in milliseconds between crawler thread executions.
     * Used to control the rate at which new crawler threads are started
     * and the frequency of status checks.
     */
    protected long crawlingExecutionInterval = Constants.DEFAULT_CRAWLING_EXECUTION_INTERVAL;

    /**
     * Thread priority for crawler threads.
     * Defaults to normal thread priority.
     */

                    Thread.currentThread().interrupt();
                }
            });
        }

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

        // Wait for all threads to complete
        for (Thread t : threads) {
            t.join();
        }

        // Verify password is wiped
        assertNull(auth.getPassword());
    }

                }
            });
        }

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

        // Wait for all threads to complete
        for (Thread thread : threads) {
            thread.join();
        }

        // Verify no exceptions occurred
        for (int i = 0; i < threadCount; i++) {

  /**
   * When we need a new thread to run tasks, we call [Backend.execute]. A few microseconds later we
   * expect a newly-started thread to call [Runnable.run]. We shouldn't request new threads until
   * the already-requested ones are in service, otherwise we might create more threads than we need.
   *
   * We use [executeCallCount] and [runCallCount] to defend against starting more threads than we

                    }
                }
            });
        }

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

        // Wait for completion
        for (Thread t : threads) {
            t.join();
        }

        // Verify consistency
        SimpleCircuitBreaker.Statistics stats = breaker.getStatistics();

            final int index = i;
            threads[i] = new Thread(() -> {
                invertibles[index] = securityResourceProvider.providePrimaryInvertibleCryptographer();
                oneWays[index] = securityResourceProvider.providePrimaryOneWayCryptographer();
            });
            threads[i].start();
        }

        // Wait for all threads to complete
        for (Thread thread : threads) {
            try {

  }

  /**
   * Add a shutdown hook to wait for thread completion in the given {@link ExecutorService service}.
   * This is useful if the given service uses daemon threads, and we want to keep the JVM from
   * exiting immediately on shutdown, instead giving these daemon threads a chance to terminate
   * normally.
   *
   * @param service ExecutorService which uses daemon threads