private final int id;
        private boolean closed = false;

        public CloseableTestComponent() {
            this.id = instanceCounter.incrementAndGet();
        }

        public int getId() {
            return id;
        }

        public boolean isClosed() {
            return closed;
        }

        @Override

    return getSubMultiset(0, elementSet.headIndex(upperBound, checkNotNull(boundType) == CLOSED));
  }

  @Override
  public ImmutableSortedMultiset<E> tailMultiset(E lowerBound, BoundType boundType) {
    return getSubMultiset(
        elementSet.tailIndex(lowerBound, checkNotNull(boundType) == CLOSED), length);
  }

  ImmutableSortedMultiset<E> getSubMultiset(int from, int to) {

          .build(),
      )

    val exception =
      assertFailsWith<IOException> {
        call2.execute()
      }
    assertThat(exception.message).isIn("Socket closed", "Socket is closed")
  }

    private val charset: Charset,
  ) : Reader() {
    private var closed: Boolean = false
    private var delegate: Reader? = null

    @Throws(IOException::class)
    override fun read(
      cbuf: CharArray,
      off: Int,
      len: Int,
    ): Int {
      if (closed) throw IOException("Stream closed")

      val finalDelegate =
        delegate ?: InputStreamReader(

 *   public static Book paperback(String title) {...}
 * }
 * </pre>
 *
 * <p>please use {@link ClassSanityTester#forAllPublicStaticMethods}.
 *
 * <p>If not all classes on the classpath should be covered, {@link #ignoreClasses} can be used to
 * exclude certain classes. As a special case, classes with an underscore in the name (like {@code
 * AutoValue_Foo}) can be excluded using <code>ignoreClasses({@link #UNDERSCORE_IN_NAME})</code>.

        }
        return Optional.empty();
    }

    @Override
    public Optional<String> color() {
        if (commandLine.hasOption(CLIManager.COLOR)) {
            if (commandLine.getOptionValue(CLIManager.COLOR) != null) {
                return Optional.of(commandLine.getOptionValue(CLIManager.COLOR));
            } else {
                return Optional.of("auto");
            }
        }

    }

    private TestCloseable(@Nullable Throwable throwOnClose) {
      this.throwOnClose = throwOnClose;
    }

    boolean isClosed() {
      return closed;
    }

    @Override
    public void close() throws IOException {
      closed = true;
      if (throwOnClose != null) {
        throwIfInstanceOf(throwOnClose, IOException.class);
        throwIfUnchecked(throwOnClose);

  }

  @Override
  public String toString() {
    return comparator
        + ":"
        + (lowerBoundType == CLOSED ? '[' : '(')
        + (hasLowerBound ? lowerEndpoint : "-\u221e")
        + ','
        + (hasUpperBound ? upperEndpoint : "\u221e")
        + (upperBoundType == CLOSED ? ']' : ')');
  }

  @Nullable T getLowerEndpoint() {
    return lowerEndpoint;
  }

  }

  public void testCopyToAppendable_doesNotCloseIfWriter() throws IOException {
    TestWriter writer = new TestWriter();
    assertFalse(writer.closed());
    source.copyTo(writer);
    assertFalse(writer.closed());
  }

  public void testClosesOnErrors_copyingToCharSinkThatThrows() {
    for (TestOption option : EnumSet.of(OPEN_THROWS, WRITE_THROWS, CLOSE_THROWS)) {

	switch atomic.LoadInt32(&c.connected) {
	case closed:
		// client closed, this is usually a manual process
		// so return a local error as client is closed
		return nil, &NetworkError{Err: ErrClientClosed}
	case offline:
		// client offline, return last error captured.
		return nil, &NetworkError{Err: c.LastError()}
	}

	// client is still connected, attempt the request.