class SocketOutputStream extends FilterOutputStream {

    SocketOutputStream( OutputStream out ) {
        super( out );
    }

    public synchronized void write( byte[] b, int off, int len ) throws IOException {
        if( len > 0xFFFF ) {
            throw new IOException( "write too large: " + len );
        } else if( off < 4 ) {
            throw new IOException( "NetBIOS socket output buffer requires 4 bytes available before off" );
        }

        try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
                PrintWriter writer = new PrintWriter(baos, false, Constants.CHARSET_UTF_8)) {
            exception.printStackTrace(writer);
            writer.flush();
            append(buf, "exception", () -> StringEscapeUtils.escapeJson(new String(baos.toByteArray(), Constants.CHARSET_UTF_8)));

    this.out = out;
  }

  @Override
  public void write(int c) throws IOException {
    super.write(c);
    flush(); // flush write to TestOutputStream to get its behavior
  }

  @Override
  public void write(char[] cbuf, int off, int len) throws IOException {
    super.write(cbuf, off, len);
    flush();
  }

  @Override
  public void write(String str, int off, int len) throws IOException {

						if err == nil {
							err = errClose
						}
					}
				}()
			}

			var writer io.Writer
			if outFilename == "" {
				writer = c.OutOrStdout()
			} else {
				var out *os.File
				if out, err = os.Create(outFilename); err != nil {
					return err
				}
				writer = out
				defer func() {
					if errClose := out.Close(); errClose != nil {

    val metadataBuffer = Buffer()
    metadataBuffer.write(metadata)

    val fileOperator = FileOperator(file!!.channel)
    fileOperator.write(FILE_HEADER_SIZE + upstreamSize, metadataBuffer, metadata.size.toLong())
  }

  @Throws(IOException::class)
  fun commit(upstreamSize: Long) {
    // Write metadata to the end of the file.
    writeMetadata(upstreamSize)
    file!!.channel.force(false)

		signal.Notify(signals, os.Interrupt)
		defer signal.Stop(signals)
		<-signals
		fw.Close()
	}()
}

func openBrowser(url string, writer io.Writer, browser bool) {
	var err error

	fmt.Fprintf(writer, "%s\n", url)

	if !browser {
		fmt.Fprint(writer, "skipping opening a browser")
		return
	}

	switch runtime.GOOS {
	case "linux":
		err = exec.Command("xdg-open", url).Start()

			ww, err := w.CreateHeader(f.header)
			if err != nil {
				t.Fatalf("unable to write previously parsed header: %s", err)
			}
			if _, err := ww.Write(f.content); err != nil {
				t.Fatalf("unable to write previously parsed content: %s", err)
			}
		}

		if err := w.Close(); err != nil {
			t.Fatalf("Unable to write archive: %s", err)
		}

		// TODO: We may want to check if the archive roundtrips.
	})

    out.write(b);

    verify(hashFunction).newHasher();
    verify(hasher).putByte((byte) b);
    verifyNoMoreInteractions(hashFunction, hasher);
  }

  public void testWrite_putByteArray() throws Exception {
    byte[] buf = new byte[] {'y', 'a', 'm', 's'};
    HashingOutputStream out = new HashingOutputStream(hashFunction, buffer);
    out.write(buf);

    verify(hashFunction).newHasher();

 * @since 1.0
 */
@J2ktIncompatible
@GwtIncompatible
@ElementTypesAreNonnullByDefault
public interface ByteArrayDataOutput extends DataOutput {
  @Override
  void write(int b);

  @Override
  void write(byte b[]);

  @Override
  void write(byte b[], int off, int len);

  @Override
  void writeBoolean(boolean v);

  @Override
  void writeByte(int v);

  @Override
  void writeShort(int v);

    this.hasher = checkNotNull(hashFunction.newHasher());
  }

  @Override
  public void write(int b) throws IOException {
    hasher.putByte((byte) b);
    out.write(b);
  }

  @Override
  public void write(byte[] bytes, int off, int len) throws IOException {
    hasher.putBytes(bytes, off, len);
    out.write(bytes, off, len);
  }

  /**