* ```
 *
 * ## Shutdown Isn't Necessary
 *
 * The threads and connections that are held will be released automatically if they remain idle. But
 * if you are writing a application that needs to aggressively release unused resources you may do
 * so.
 *
 * Shutdown the dispatcher's executor service with [shutdown()][ExecutorService.shutdown]. This will

          }
        },
        exec);

    assertEquals(1, latch.getCount());
    assertFalse(future.isDone());
    assertFalse(future.isCancelled());
  }

  public void tearDown() {
    exec.shutdown();
  }

  public void testCompletedFuture(@Nullable Object expectedValue)
      throws InterruptedException, ExecutionException {
    assertTrue(future.isDone());
    assertFalse(future.isCancelled());

    }

    @Test
    public void testShutdown() {
        // Should not throw exception
        assertDoesNotThrow(() -> provider.shutdown());
    }

                        throw new AssertionError();
                    }
                  }
                  return threadSum;
                }
              }));
    }
    threadPool.shutdown();
    assertTrue(threadPool.awaitTermination(300, SECONDS));
    long sum = 0;
    for (Future<Long> f : futures) {
      sum += f.get();
    }
    assertEquals(sum, map.get(key));
  }

            listenerLatch.countDown();
          }
        },
        directExecutor());
  }

  @Override
  protected void tearDown() throws Exception {
    if (exec != null) {
      exec.shutdown();
    }

    super.tearDown();
  }

  public void testListenerDoesNotRunUntilTaskCompletes() throws Exception {

    // Test default state of not started.
    assertEquals(1, listenerLatch.getCount());

          .addAllowedQuicHost("www.google.com")
          .build(),
      ).addQuicHint("google.com", 443, 443)
      .addQuicHint("www.google.com", 443, 443)
      .build()

  @After
  fun tearDown() {
    engine.shutdown()
    cacheDir.deleteRecursively()
  }

  @Test
  fun get() {
    val executor = Executors.newCachedThreadPool()

    val completableFuture = execute(engine, executor, "https://google.com/robots.txt")

      println("Test count: $count")
      for (number in 1..count) {
        runTest(number, count)
      }
      updateReports()
    } finally {
      client.dispatcher.executorService.shutdown()
    }
  }

  private fun runTest(
    number: Long,
    count: Long,
  ) {
    val latch = CountDownLatch(1)
    val startNanos = AtomicLong()
    newWebSocket(

     * Alter context packet type
     */
    int RPC_PT_ALTER_CONTEXT = 0x0E;
    /**
     * Alter context response packet type
     */
    int RPC_PT_ALTER_CONTEXT_RESPONSE = 0x0F;
    /**
     * Shutdown packet type
     */
    int RPC_PT_SHUTDOWN = 0x11;
    /**
     * Cancel packet type
     */
    int RPC_PT_CANCEL = 0x12;
    /**
     * Acknowledgment packet type
     */

     */
    String getProviderName();
    
    /**
     * Get maximum message size supported
     */
    int getMaxMessageSize();
    
    /**
     * Clean up provider resources
     */
    void shutdown();
}

public enum RdmaAccess {
    LOCAL_READ,
    LOCAL_WRITE,
    REMOTE_READ,
    REMOTE_WRITE,
    MEMORY_BIND
}
```

## 4. Data Structures

### 4.1 RDMA Connection
```java

      }
      barrier.await(); // release the threads!
      barrier.await(); // wait for them all to complete
      assertEquals(1, task.get().intValue());
      assertEquals(1, counter.get());
    }
    executor.shutdown();
  }

  @J2ktIncompatible
  @GwtIncompatible // blocking wait
  public void testToString() throws Exception {
    CountDownLatch enterLatch = new CountDownLatch(1);