final String servletPath = request.getServletPath();
                final String pathPrefix = ADMIN_SERVER + token;
                if (!servletPath.startsWith(pathPrefix)) {
                    throw new WebApiException(HttpServletResponse.SC_FORBIDDEN, "Invalid access token.");
                }
                final String path;
                final String value = servletPath.substring(pathPrefix.length());

   * {@code view} returned by this method will be invalidated, and will throw {@code
   * IllegalStateException} if it is accessed in any way, with the following exceptions:
   *
   * <ul>
   *   <li>{@code view.equals(view)} evaluates to {@code true} (but any other {@code equals(...)}
   *       expression involving {@code view} will throw)
   *   <li>{@code hashCode()} does not throw

  }

  private static <T> Callable<T> callableThrowing(Exception exception) {
    return () -> {
      throw exception;
    };
  }

  private static Runnable runnableThrowing(RuntimeException e) {
    return () -> {
      throw e;
    };
  }

  @SuppressWarnings("serial")
  private static class SampleCheckedException extends Exception {}

    Assert.assertTrue(countDownLatch.await(1L, SECONDS));

    try {
      Assert.assertEquals(expectedData, future.get());
    } catch (ExecutionException e) {
      throw e.getCause();
    }
  }

  /**
   * Verify that the listener completes in a reasonable amount of time, and Asserts that the future

  }

  @MapFeature.Require(absent = ALLOWS_NULL_KEY_QUERIES)
  public void testGet_nullNotContainedAndUnsupported() {
    try {
      assertNull("get(null) should return null or throw", get(null));
    } catch (NullPointerException tolerated) {
    }
  }

  @MapFeature.Require(ALLOWS_NULL_KEYS)
  @CollectionSize.Require(absent = ZERO)
  public void testGet_nonNullWhenNullContained() {

            if (systemProperty(TESTS_REST_CLUSTER) == null) {
                if (systemProperty(TESTS_CLUSTER) != null || systemProperty(TESTS_CLUSTER_NAME) != null) {
                    throw new IllegalArgumentException(
                        String.format("%s, %s, and %s must all be null or non-null", TESTS_REST_CLUSTER, TESTS_CLUSTER, TESTS_CLUSTER_NAME)
                    );
                }

  }

  static final class BrokenChannel extends AbstractInterruptibleChannel {
    @Override
    protected void implCloseChannel() {
      throw new RuntimeException("I bet you didn't think Thread.interrupt could throw");
    }

    void doBegin() {
      super.begin();
    }
  }

  /**
   * Because Thread.interrupt() can invoke arbitrary code, it can be slow (e.g. perform IO). To

  }

  static final class BrokenChannel extends AbstractInterruptibleChannel {
    @Override
    protected void implCloseChannel() {
      throw new RuntimeException("I bet you didn't think Thread.interrupt could throw");
    }

    void doBegin() {
      super.begin();
    }
  }

  /**
   * Because Thread.interrupt() can invoke arbitrary code, it can be slow (e.g. perform IO). To

    }

    @Test
    public void testReleaseSendRegion() throws Exception {
        RdmaMemoryRegion region = bufferManager.getSendRegion(1024);
        assertNotNull(region);

        // Release should not throw exception
        assertDoesNotThrow(() -> bufferManager.releaseSendRegion(region));
    }

    @Test
    public void testGetReceiveRegion() throws Exception {

    void testCircuitOpensAfterThreshold() {
        // Fail 3 times to open the circuit
        for (int i = 0; i < 3; i++) {
            try {
                circuitBreaker.call(() -> {
                    throw new RuntimeException("Test failure");
                });
            } catch (Exception e) {
                // Expected
            }
        }