StringWriter writer = new StringWriter();
    long copied = CharStreams.copy(new StringReader(ASCII), writer);
    assertEquals(ASCII, writer.toString());
    assertEquals(ASCII.length(), copied);

    StringWriter writer2 = new StringWriter();
    copied = CharStreams.copy(new StringReader(I18N), writer2);
    assertEquals(I18N, writer2.toString());
    assertEquals(I18N.length(), copied);
  }

    StringWriter writer = new StringWriter();
    long copied = CharStreams.copy(new StringReader(ASCII), writer);
    assertEquals(ASCII, writer.toString());
    assertEquals(ASCII.length(), copied);

    StringWriter writer2 = new StringWriter();
    copied = CharStreams.copy(new StringReader(I18N), writer2);
    assertEquals(I18N, writer2.toString());
    assertEquals(I18N.length(), copied);
  }

    }

    @Override
    public long copyTo(CharSink sink) throws IOException {
      checkNotNull(sink);
      Closer closer = Closer.create();
      try {
        Writer writer = closer.register(sink.openStream());
        writer.write((String) seq);
        return seq.length();
      } catch (Throwable e) {
        throw closer.rethrow(e);
      } finally {
        closer.close();
      }
    }
  }

 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

/**
 * Utility methods and classes for I/O; for example input streams, output streams, readers, writers,
 * and files.
 *
 * <p>At the core of this package are the Source/Sink types: {@link ByteSource ByteSource}, {@link
 * CharSource CharSource}, {@link ByteSink ByteSink} and {@link CharSink CharSink}. They are

      throws IOException {
    StringWriter writer = new StringWriter();
    try (OutputStream encodingStream = encoding.encodingStream(writer)) {
      encodingStream.write(decoded.getBytes(UTF_8));
    }
    assertThat(writer.toString()).isEqualTo(encoded);
  }

  @GwtIncompatible // Reader
  private static void testStreamingDecodes(BaseEncoding encoding, String encoded, String decoded)
      throws IOException {

    return byteSink.wasStreamClosed();
  }

  @Override
  public Writer openStream() throws IOException {
    // using TestByteSink's output stream to get option behavior, so flush to it on every write
    return new FilterWriter(new OutputStreamWriter(byteSink.openStream(), UTF_8)) {
      @Override
      public void write(int c) throws IOException {
        super.write(c);
        flush();
      }

      @Override

  // TODO: Test interrupts with both interruptible and uninterruptible monitor.
  // TODO: Test multiple waiters: If guard is still satisfied, signal next waiter.
  // TODO: Test multiple waiters: If guard is no longer satisfied, do not signal next waiter.

    int waiters = guard.waiterCount++;
    if (waiters == 0) {
      // push guard onto activeGuards
      guard.next = activeGuards;
      activeGuards = guard;
    }
  }

  /** Records that the current thread is no longer waiting on the specified guard. */
  @GuardedBy("lock")
  private void endWaitingFor(Guard guard) {
    int waiters = --guard.waiterCount;

  @Override
  @J2ktIncompatible // serialization
  @GwtIncompatible // serialization
  Object writeReplace() {
    return super.writeReplace();
  }

  // No longer used for new writes, but kept so that old data can still be read.
  @GwtIncompatible // serialization
  @J2ktIncompatible
  @SuppressWarnings("unused")
  private static class SerializedForm<V> implements Serializable {

   * on the fields of TimeoutFuture. This field is slightly different from the fields discussed
   * there: cancel() never reads this field, only writes to it. That makes the race here completely
   * harmless, rather than just 99.99% harmless.
   */
  @CheckForNull @LazyInit private List<@Nullable Present<V>> values;

  CollectionFuture(