@Override
        public String toString() {
          return "ByteStreams.nullOutputStream()";
        }
      };

  /**
   * Returns an {@link OutputStream} that simply discards written bytes.
   *
   * <p><b>Java 11+ users:</b> use {@link OutputStream#nullOutputStream()} instead. Note that the
   * {@link ByteStreams} method returns a singleton stream whose {@code close} method has no effect,

        NullPointerException.class, () -> ByteStreams.readFully(newTestStream(10), null, 0, 10));

    assertThrows(NullPointerException.class, () -> ByteStreams.readFully(null, b, 0, 10));

    assertThrows(
        IndexOutOfBoundsException.class, () -> ByteStreams.readFully(newTestStream(10), b, -1, 10));

    assertThrows(
        IndexOutOfBoundsException.class, () -> ByteStreams.readFully(newTestStream(10), b, 0, -1));

        NullPointerException.class, () -> ByteStreams.readFully(newTestStream(10), null, 0, 10));

    assertThrows(NullPointerException.class, () -> ByteStreams.readFully(null, b, 0, 10));

    assertThrows(
        IndexOutOfBoundsException.class, () -> ByteStreams.readFully(newTestStream(10), b, -1, 10));

    assertThrows(
        IndexOutOfBoundsException.class, () -> ByteStreams.readFully(newTestStream(10), b, 0, -1));

    Closer closer = Closer.create();
    try {
      InputStream in = closer.register(openStream());
      Optional<Long> size = sizeIfKnown();
      return size.isPresent()
          ? ByteStreams.toByteArray(in, size.get())
          : ByteStreams.toByteArray(in);
    } catch (Throwable e) {
      throw closer.rethrow(e);
    } finally {
      closer.close();
    }
  }

  /**

    InputStream in = source.openBufferedStream();
    assertTrue(source.wasStreamOpened());
    assertFalse(source.wasStreamClosed());

    ByteArrayOutputStream out = new ByteArrayOutputStream();
    ByteStreams.copy(in, out);
    in.close();
    out.close();

    assertTrue(source.wasStreamClosed());
    assertArrayEquals(bytes, out.toByteArray());
  }

  public void testSize() throws IOException {

    InputStream in = source.openBufferedStream();
    assertTrue(source.wasStreamOpened());
    assertFalse(source.wasStreamClosed());

    ByteArrayOutputStream out = new ByteArrayOutputStream();
    ByteStreams.copy(in, out);
    in.close();
    out.close();

    assertTrue(source.wasStreamClosed());
    assertArrayEquals(bytes, out.toByteArray());
  }

  public void testSize() throws IOException {

import com.google.common.collect.TreeBasedTable;
import com.google.common.collect.TreeMultimap;
import com.google.common.io.ByteSink;
import com.google.common.io.ByteSource;
import com.google.common.io.ByteStreams;
import com.google.common.io.CharSink;
import com.google.common.io.CharSource;
import com.google.common.primitives.Primitives;
import com.google.common.primitives.UnsignedInteger;

import com.google.common.collect.TreeBasedTable;
import com.google.common.collect.TreeMultimap;
import com.google.common.io.ByteSink;
import com.google.common.io.ByteSource;
import com.google.common.io.ByteStreams;
import com.google.common.io.CharSink;
import com.google.common.io.CharSource;
import com.google.common.primitives.Primitives;
import com.google.common.primitives.UnsignedInteger;

    byte[] bytes = ip.getAddress();
    Inet4Address server = getInet4Address(Arrays.copyOfRange(bytes, 4, 8));

    int flags = ByteStreams.newDataInput(bytes, 8).readShort() & 0xffff;

    // Teredo obfuscates the mapped client port, per section 4 of the RFC.
    int port = ~ByteStreams.newDataInput(bytes, 10).readShort() & 0xffff;

    byte[] clientBytes = Arrays.copyOfRange(bytes, 12, 16);

        // See https://github.com/google/guava/issues/3542
        Reader reader = new StringReader(cannotDecode);
        InputStream decodingStream = encoding.decodingStream(reader);
        try {
          ByteStreams.exhaust(decodingStream);
          fail("Expected DecodingException");
        } catch (DecodingException expected) {
          // Don't assert on the expectedMessage; the messages for exceptions thrown from the