public MockProcess(String output) {
            this.inputStream = new ByteArrayInputStream(output.getBytes());
        }

        @Override
        public OutputStream getOutputStream() {
            return null;
        }

        @Override
        public InputStream getInputStream() {
            return inputStream;
        }

        @Override

        try (final XContentBuilder builder = func.apply(mediaType.contentBuilder(), ToXContent.EMPTY_PARAMS)) {
            builder.flush();
            return builder.getOutputStream();
        } catch (final IOException e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Failed to print the output.", e);
            }
            return new ByteArrayOutputStream();

        response.setContentType(buf.toString());
        writeHeaders(response);
        try (PrintWriter out = new PrintWriter(new OutputStreamWriter(response.getOutputStream(), enc))) {
            out.print(text);
        } catch (final IOException e) {
            throw new IORuntimeException(e);
        }
    }

    /**
     * Writes custom headers to the HTTP response.

                }
            }, "ProcessCloser-error-" + sessionId).start();
            new Thread(() -> {
                try {
                    CloseableUtil.closeQuietly(process.getOutputStream());
                } catch (final Exception e) {
                    logger.warn("Could not close a process output stream.", e);
                } finally {
                    latch.countDown();
                }

    private val remoteAddress: InetAddress = localAddress,
    private val remotePort: Int = 1234,
  ) : Socket() {
    override fun getInputStream() = Buffer().inputStream()

    override fun getOutputStream() = Buffer().outputStream()

    override fun getInetAddress() = remoteAddress

    override fun getLocalAddress() = localAddress

    override fun getLocalPort() = localPort

                    CopyUtil.copy(in, out);
                } catch (final IOException e) {
                    throw new WebApiException(HttpServletResponse.SC_BAD_REQUEST, e);
                }
            }
        }).execute()) {

            try (ServletOutputStream out = response.getOutputStream(); InputStream in = curlResponse.getContentAsStream()) {

            builder.startObject();
            response.toXContent(builder, ToXContent.EMPTY_PARAMS);
            builder.endObject();
            builder.flush();
            try (OutputStream out = builder.getOutputStream()) {
                stats = ((ByteArrayOutputStream) out).toString(Constants.UTF_8);
            }
        } catch (final Exception e) {
            appendException(buf, e).append(',');
        }

            @Override
            public String getContentType() {
                return null;
            }

            @Override
            public jakarta.servlet.ServletOutputStream getOutputStream() {
                return null;
            }

            @Override
            public java.io.PrintWriter getWriter() {
                return null;
            }

            @Override

        }

        @Override
        public String getContentType() {
            return null;
        }

        @Override
        public jakarta.servlet.ServletOutputStream getOutputStream() {
            return null;
        }

        @Override
        public java.io.PrintWriter getWriter() {
            return null;
        }

        @Override

                    logger.fine(() -> ">>> " + body);
                    connection.setDoOutput(true);
                    try (BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(connection.getOutputStream(), encoding))) {
                        writer.write(body);
                        writer.flush();
                    }
                } else if (bodyStream != null) {