@Synchronized fun writeSuccessCount(): Int = writeSuccessCount

  @Throws(IOException::class)
  fun size(): Long = cache.size()

  /** Max size of the cache (in bytes). */
  fun maxSize(): Long = cache.maxSize

  @Throws(IOException::class)
  override fun flush() {
    cache.flush()
  }

  @Throws(IOException::class)
  override fun close() {
    cache.close()
  }

  }

  /**
   * Guaranteed to throw an exception and leave the map unmodified.
   *
   * @throws UnsupportedOperationException always
   * @deprecated Unsupported operation.
   */
  @CanIgnoreReturnValue
  @Deprecated
  @Override
  @DoNotCall("Always throws UnsupportedOperationException")
  public final @Nullable Entry<K, V> pollFirstEntry() {
    throw new UnsupportedOperationException();
  }

    assertEquals(6, (int) future.get());
  }

  public void testSameThreadScheduledExecutorWithException() throws InterruptedException {
    Runnable runnable =
        new Runnable() {
          @Override
          public void run() {
            throw new RuntimeException("Oh no!");
          }
        };

    Future<?> future = TestingExecutors.sameThreadScheduledExecutor().submit(runnable);

    assertEquals(6, (int) future.get());
  }

  public void testSameThreadScheduledExecutorWithException() throws InterruptedException {
    Runnable runnable =
        new Runnable() {
          @Override
          public void run() {
            throw new RuntimeException("Oh no!");
          }
        };

    Future<?> future = TestingExecutors.sameThreadScheduledExecutor().submit(runnable);

   *     write {@code throw sneakyThrow(t);} to convince the compiler that the statement will always
   *     throw.
   */
  @CanIgnoreReturnValue
  static Error sneakyThrow(Throwable t) {
    throw new SneakyThrows<Error>().throwIt(t);
  }

  @SuppressWarnings("unchecked") // not really safe, but that's the point
  private Error throwIt(Throwable t) throws T {
    throw (T) t;
  }

  private SneakyThrows() {}

   *     Corresponds to `FLAG_FIN`.
   */
  @Throws(IOException::class)
  fun newStream(
    requestHeaders: List<Header>,
    out: Boolean,
  ): Http2Stream = newStream(0, requestHeaders, out)

  @Throws(IOException::class)
  private fun newStream(
    associatedStreamId: Int,
    requestHeaders: List<Header>,
    out: Boolean,

    Settings buildSettings(MavenExecutionRequest request) throws IOException, XmlPullParserException;

    /**
     * @return a <code>Settings</code> object from the user settings file.
     * @throws IOException if any
     * @throws XmlPullParserException if any
     */
    Settings buildSettings() throws IOException, XmlPullParserException;

    /**

  public void testBuildTesterRequirements_class_notAnnotated() throws Exception {
    class Tester {}

    TesterRequirements requirements = buildTesterRequirements(Tester.class);

    assertThat(requirements.getPresentFeatures()).isEmpty();
    assertThat(requirements.getAbsentFeatures()).isEmpty();
  }

  public void testBuildTesterRequirements_class_empty() throws Exception {
    @Require
    class Tester {}

    @Override
    public void transferStarted(TransferEvent event) throws TransferCancelledException {
        if (ongoing.get(new TransferResourceIdentifier(event.getResource())) == Boolean.FALSE) {
            throw new TransferCancelledException();
        }
        put(event, false);
    }

    @Override
    public void transferProgressed(TransferEvent event) throws TransferCancelledException {

      monitor.leave();
    }
  }

  /**
   * @throws UnsupportedOperationException {@inheritDoc}
   * @throws ClassCastException {@inheritDoc}
   * @throws NullPointerException {@inheritDoc}
   * @throws IllegalArgumentException {@inheritDoc}
   */
  @CanIgnoreReturnValue
  @Override
  public int drainTo(Collection<? super E> c) {
    if (c == null) throw new NullPointerException();