exceptions.add(e);
                } finally {
                    endLatch.countDown();
                }
            });
        }

        // Start all threads simultaneously
        startLatch.countDown();

        // Wait for completion
        assertTrue(endLatch.await(30, TimeUnit.SECONDS), "All threads should complete within timeout");
        executor.shutdown();

        }
      } while ((byte1 = bytes[index++]) >= 0);

      if (byte1 < (byte) 0xE0) {
        // Two-byte form.
        if (index == end) {
          return false;
        }
        // Simultaneously check for illegal trailing-byte in leading position
        // and overlong 2-byte form.
        if (byte1 < (byte) 0xC2 || bytes[index++] > (byte) 0xBF) {
          return false;
        }

 * Since connections may be reused, the proxy selection, DNS, and connect events may not be present
 * for a call. In future releases of OkHttp these events may also occur concurrently to permit
 * multiple routes to be attempted simultaneously.
 *
 * Events and sequences of events may be repeated for retries and follow-ups.
 *
 * All event methods must execute fast, without external locking, cannot throw exceptions, attempt

  var idleAtNs = Long.MAX_VALUE

  /**
   * Returns true if this is an HTTP/2 connection. Such connections can be used in multiple HTTP
   * requests simultaneously.
   */
  internal val isMultiplexed: Boolean
    get() = http2Connection != null

  /** Prevent further exchanges from being created on this connection. */
  override fun noNewExchanges() {
    withLock {

        for (int i = 0; i < threadCount; i++) {
            final int index = i;
            threads[i] = new Thread(() -> {
                try {
                    // Multiple threads accessing context simultaneously
                    for (int j = 0; j < 50; j++) {
                        context.getConfig();
                        context.getBufferCache();
                        context.getDfs();

        byte[] buffer = new byte[1000];
        int numThreads = 10;
        Thread[] threads = new Thread[numThreads];

        // When - multiple threads calling methods simultaneously
        for (int i = 0; i < numThreads; i++) {
            final int threadIndex = i;
            threads[i] = new Thread(() -> {
                for (int j = 0; j < 100; j++) {

    )
  }

  /**
   * Holding the lock of the connection being added or removed when mutating this, and check its
   * [RealConnection.noNewExchanges] property. This defends against races where a connection is
   * simultaneously adopted and removed.
   */
  private val connections = ConcurrentLinkedQueue<RealConnection>()

  init {
    // Put a floor on the keep alive duration, otherwise cleanup will spin loop.

                } finally {
                    completeLatch.countDown();
                }
            }).start();
        }

        // Start all threads simultaneously
        startLatch.countDown();

        // Wait for completion
        assertTrue(completeLatch.await(5, TimeUnit.SECONDS));

        // Authenticator should be closed
        assertTrue(auth.isClosed());

state.

This is a slower operation that does not use replication queues and is designed to walk the namespace and replicate objects one at a time so as not to impede server load. Ideally, resync should not be initiated for multiple buckets simultaneously - progress of the syncing can be monitored by looking at `mc replicate resync status alias/bucket --remote-bucket <arn>`. In the event that resync operation failed to replicate some versions, they would be picked up by the healing mechanism in-built...

  @GwtIncompatible // NullPointerTester
  public void testNullPointers() {
    /*
     * Don't bother testing: Preconditions defines a bunch of methods that accept a template (or
     * even entire message) that simultaneously:
     *
     * - _shouldn't_ be null, so we don't annotate it with @Nullable
     *
     * - _can_ be null without causing a runtime failure (because we don't want the interesting