* possibly run in another thread. That cause should itself be an {@code Error}; if not, use {@code
 * ExecutionException} or {@link UncheckedExecutionException}. This allows the client code to
 * continue to distinguish between exceptions and errors, even when they come from other threads.
 *
 * @author Chris Povirk
 * @since 10.0
 */
@GwtCompatible

   * As such, this field must be cleared before every map mutation.
   *
   * Note about volatile: volatile doesn't make it safe to read from a mutable graph in one thread
   * while writing to it in another. All it does is help with _reading_ from multiple threads
   * concurrently. For more information, see AbstractNetworkTest.concurrentIteration.
   */
  private transient volatile @Nullable Entry<K, V> cacheEntry;

        cli.initialize(request);
        cli.cli(request);
        assertEquals("multithreaded", request.commandLine.getOptionValue(CLIManager.BUILDER));
        assertEquals("8", request.commandLine.getOptionValue(CLIManager.THREADS));

        // override from command line
        request = new CliRequest(new String[] {"--builder", "foobar"}, null);
        cli.cli(request);

  private var nextTcpConnectAtNanos = Long.MIN_VALUE

  /**
   * Plans currently being connected, and that will later be added to [connectResults]. This is
   * mutated by the call thread only. If is accessed by background connect threads.
   */
  private val tcpConnectsInFlight = CopyOnWriteArrayList<Plan>()

  /**
   * Results are posted here as they occur. The find job is done when either one plan completes

        fesenClient = new FesenClient();
        mockClient = mock(Client.class);
        fesenClient.client = mockClient;
    }

    /**
     * Test: Thread-safe listener management using CopyOnWriteArrayList
     * Verifies that multiple threads can safely add listeners concurrently
     */
    @Test
    public void testThreadSafeListenerManagement() throws Exception {
        final int numThreads = 10;

    assertFalse(future.isDone());
    assertFalse(future.isCancelled());

    CountDownLatch successLatch = new CountDownLatch(1);

    // Run cancellation in a separate thread as an extra thread-safety test.
    new Thread(
            () -> {
              assertThrows(CancellationException.class, future::get);
              successLatch.countDown();
            })
        .start();

                    });
                }

                // start all threads at once
                try {
                    startLatch.await();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }

                // wait for all thread to end
                try {
                    endLatch.await();

 *  New: Support [JPMS]. We replaced our `Automatic-Module-Name` metadata with proper
    `module-info.java` files.

 *  Fix: Recover gracefully when worker threads are interrupted. When we introduced fast fallback in
    OkHttp 5.0, we started using background threads while connecting. Sadly that code didn't handle
    interruptions well. This is now fixed.

 *  Upgrade: [Kotlin 2.2.20][kotlin_2_2_20].

        }
    }

    /**
     * Waits for a crawler thread to complete execution.
     * This method handles interruptions gracefully and logs when a crawler process is interrupted.
     *
     * @param crawlerThread the thread to wait for; null threads are ignored
     */
    private void joinCrawlerThread(final Thread crawlerThread) {
        if (crawlerThread != null) {
            try {

    @Min(value = 0)
    @Max(value = 9223372036854775807L)
    @ValidateTypeFailure
    public Long maxAccessCount;

    /** The number of threads to use for crawling (required, 1 to 2147483647). */
    @Required
    @Min(value = 1)
    @Max(value = 2147483647)
    @ValidateTypeFailure
    public Integer numOfThread;