if (!features.contains(methodFeature)) {
        if (stackWithLastReturnedElementAtTop == null) {
          throw PermittedMetaException.UOE_OR_ISE;
        } else {
          throw PermittedMetaException.UOE;
        }
      } else if (stackWithLastReturnedElementAtTop == null) {
        throw PermittedMetaException.ISE;
      }
    }

    private List<E> getElements() {

    handler: Handler,
    length: Int,
    flags: Int,
    streamId: Int,
  ) {
    if (length != 5) throw IOException("TYPE_PRIORITY length: $length != 5")
    if (streamId == 0) throw IOException("TYPE_PRIORITY streamId == 0")
    readPriority(handler, streamId)
  }

  @Throws(IOException::class)
  private fun readPriority(
    handler: Handler,
    streamId: Int,
  ) {
    val w1 = source.readInt()

 *
 * <p>If the precondition is not met, the {@code Preconditions} method throws an unchecked exception
 * of a specified type, which helps the method in which the exception was thrown communicate that
 * its caller has made a mistake. This allows constructs such as
 *
 * <pre>{@code
 * public static double sqrt(double value) {
 *   if (value < 0) {
 *     throw new IllegalArgumentException("input is negative: " + value);
 *   }

      this.closeable = closeable;
      this.thrown = thrown;
      this.suppressed = suppressed;
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      if (obj instanceof Suppression) {
        Suppression other = (Suppression) obj;
        return closeable.equals(other.closeable)
            && thrown.equals(other.thrown)

  ) {
    throw UnsupportedOperationException()
  }

  override fun removeValue(s: String) {
    throw UnsupportedOperationException()
  }

  override fun getValue(s: String): Any {
    throw UnsupportedOperationException()
  }

  override fun getValueNames(): Array<String> {
    throw UnsupportedOperationException()
  }

  override fun invalidate() {
    throw UnsupportedOperationException()

   *   SomeStream stream = new SomeStream("foo");
   *   boolean threw = true;
   *   try {
   *     // ... code which does something with the stream ...
   *     threw = false;
   *   } finally {
   *     // If an exception occurs, rethrow it only if threw==false:
   *     Closeables.close(stream, threw);
   *   }
   * }
   * }</pre>
   *

  public boolean addAll(Collection<? extends E> elementsToAdd) {
    throw up();
  }

  @Override
  public boolean removeAll(Collection<?> elementsToRemove) {
    throw up();
  }

  @Override
  public boolean retainAll(Collection<?> elementsToRetain) {
    throw up();
  }

  @Override
  public void clear() {
    throw up();
  }

  private static UnsupportedOperationException up() {

     *            {@code null} であってはならない引数の名前
     * @param argValue
     *            引数の値
     * @throws NullArgumentException
     *             引数が<code>null</code>の場合。
     */
    public static void assertArgumentNotNull(final String argName, final Object argValue) {
        if (argValue == null) {
            throw new NullArgumentException(argName);
        }
    }

    /**
     * 引数が<code>null</code>でも空文字列でもないことを表明します。

 *
 * <p>If the precondition is not met, the {@code Preconditions} method throws an unchecked exception
 * of a specified type, which helps the method in which the exception was thrown communicate that
 * its caller has made a mistake. This allows constructs such as
 *
 * <pre>{@code
 * public static double sqrt(double value) {
 *   if (value < 0) {
 *     throw new IllegalArgumentException("input is negative: " + value);
 *   }

    }
  }

  @Throws(IOException::class)
  fun flush() {
    this.withLock {
      if (closed) throw IOException("closed")
      sink.flush()
    }
  }

  @Throws(IOException::class)
  fun rstStream(
    streamId: Int,
    errorCode: ErrorCode,
  ) {
    this.withLock {
      if (closed) throw IOException("closed")
      require(errorCode.httpCode != -1)