fail("Thread safety test interrupted");
        }

        // In test environment, some operations might not work due to missing request context
        // but the methods should not throw unexpected exceptions
    }

        assertTrue(result.contains("hotThread=5000"));
    }

    // Test initializeProbes method
    public void test_initializeProbes() {
        // Simply test that the method doesn't throw exceptions
        try {
            Crawler.initializeProbes();
        } catch (Exception e) {
            fail("initializeProbes should not throw exception: " + e.getMessage());
        }
    }

       *
       * We store `localFuturesOrNull` inside the listener because `this.futures` might be nulled
       * out by the time the listener runs for the final future -- at which point we need to check
       * all inputs for exceptions *if* we're collecting values. If we're not, then the listener
       * doesn't need access to the futures again, so we can just pass `null`.
       *

 * requests, responding to them with {@link #notifyStarted()} and {@link #notifyStopped()}
 * callbacks. Its subclasses must manage threads manually; consider {@link
 * AbstractExecutionThreadService} if you need only a single execution thread.
 *
 * @author Jesse Wilson
 * @author Luke Sandberg
 * @since 1.0
 */
@GwtIncompatible
@J2ktIncompatible
public abstract class AbstractService implements Service {

   * CacheLoader#reload}
   * to obtain a future of the new value. If the returned future is already complete, it is returned
   * immediately. Otherwise, the old value is returned.
   *
   * <p><b>Note:</b> <i>all exceptions thrown during refresh will be logged and then swallowed</i>.
   *
   * @param duration the length of time after an entry is created that it should be considered
   *     stale, and thus eligible for refresh

    serverListener.assertOpen()
    serverListener.assertFailure(EOFException::class.java)
    serverListener.assertExhausted()
    clientListener.assertFailure(e)
  }

  @Disabled("AsyncCall currently lets runtime exceptions propagate.")
  @Test
  @Throws(
    Exception::class,
  )
  fun throwingOnFailLogs() {
    webServer.enqueue(
      MockResponse
        .Builder()
        .code(200)
        .body("Body")

  }

  /**
   * Starts a {@link ClosingFuture} pipeline by submitting a callable block to an executor.
   *
   * @throws java.util.concurrent.RejectedExecutionException if the task cannot be scheduled for
   *     execution
   */
  public static <V extends @Nullable Object> ClosingFuture<V> submit(
      ClosingCallable<V> callable, Executor executor) {
    checkNotNull(callable);
    CloseableList closeables = new CloseableList();

   * will not reflect any subsequent changes to the cause chain.
   *
   * <p>Here's an example of how it can be used to find specific types of exceptions in the cause
   * chain:
   *
   * <pre>
   * Iterables.filter(Throwables.getCausalChain(e), IOException.class));
   * </pre>
   *
   * @param throwable the non-null {@code Throwable} to extract causes from

    a stream timeout to determine whether the connection should remain eligible for pooling.


## Version 3.14.4

_2019-09-29_

 *  Fix: Cancel calls that fail due to unexpected exceptions. We had a bug where an enqueued call
    would never call back if it crashed with an unchecked throwable, such as a
    `NullPointerException` or `OutOfMemoryError`. We now call `Callback.onFailure()` with an

          try {
            method.setAccessible(true);
          } catch (AccessControlException e) {
            // OK: the method is accessible to us anyway. The setAccessible call is only for
            // unusual execution environments where that might not be true.
          }
          builder.put(method.getName(), method);
        }
      }
      typeVariableMethods = builder.buildKeepingLast();
    }