MediaType mediaType = addKnownType(new MediaType(type, subtype, UTF_8_CONSTANT_PARAMETERS));
    mediaType.parsedCharset = Optional.of(UTF_8);
    return mediaType;
  }

  @CanIgnoreReturnValue
  private static MediaType addKnownType(MediaType mediaType) {
    knownTypes.put(mediaType, mediaType);
    return mediaType;
  }

  /*
   * The following constants are grouped by their type and ordered alphabetically by the constant

    MediaType mediaType = addKnownType(new MediaType(type, subtype, UTF_8_CONSTANT_PARAMETERS));
    mediaType.parsedCharset = Optional.of(UTF_8);
    return mediaType;
  }

  @CanIgnoreReturnValue
  private static MediaType addKnownType(MediaType mediaType) {
    knownTypes.put(mediaType, mediaType);
    return mediaType;
  }

  /*
   * The following constants are grouped by their type and ordered alphabetically by the constant

     * @param mediaType the media type for the content builder
     * @return an OutputStream containing the built content, or an empty ByteArrayOutputStream if an error occurs
     */
    public static OutputStream getXContentBuilderOutputStream(final XContentBuilderCallback func, final MediaType mediaType) {
        try (final XContentBuilder builder = func.apply(mediaType.contentBuilder(), ToXContent.EMPTY_PARAMS)) {

	public static final fun create (Lokhttp3/MediaType;Lokio/ByteString;)Lokhttp3/RequestBody;
	public static final fun create (Lokhttp3/MediaType;[B)Lokhttp3/RequestBody;
	public static final fun create (Lokhttp3/MediaType;[BI)Lokhttp3/RequestBody;
	public static final fun create (Lokhttp3/MediaType;[BII)Lokhttp3/RequestBody;

    @JvmName("create")
    fun String.toRequestBody(contentType: MediaType? = null): RequestBody {
      val (charset, finalContentType) = contentType.chooseCharset()
      val bytes = toByteArray(charset)
      return bytes.toRequestBody(finalContentType, 0, bytes.size)
    }

    @JvmStatic
    @JvmName("create")
    fun ByteString.toRequestBody(contentType: MediaType? = null): RequestBody =
      object : RequestBody() {

        try {
            if (useFilename) {
                final MediaType mediaType = mimeTypes.detect(null, metadata);
                if (!MediaType.OCTET_STREAM.equals(mediaType)) {
                    return mediaType.getType() + "/" + mediaType.getSubtype();
                }
            }

            final MediaType mediaType = mimeTypes.detect(is == null || is.markSupported() ? is : new BufferedInputStream(is), metadata);

  }

  @Test
  fun mediaType() {
    val mediaType: MediaType = "".toMediaType()
    val defaultCharset: Charset? = mediaType.charset()
    val charset: Charset? = mediaType.charset(Charsets.UTF_8)
    val type: String = mediaType.type
    val subtype: String = mediaType.subtype
    val parse: MediaType? = "".toMediaTypeOrNull()
  }

  @Test
  fun mockResponse() {

	public static final fun create (Lokhttp3/MediaType;Lokio/ByteString;)Lokhttp3/RequestBody;
	public static final fun create (Lokhttp3/MediaType;[B)Lokhttp3/RequestBody;
	public static final fun create (Lokhttp3/MediaType;[BI)Lokhttp3/RequestBody;
	public static final fun create (Lokhttp3/MediaType;[BII)Lokhttp3/RequestBody;

      String contentType = response.header("Content-Type");
      if (responseCode != 200 || contentType == null) {
        return;
      }

      MediaType mediaType = MediaType.parse(contentType);
      if (mediaType == null || !mediaType.subtype().equalsIgnoreCase("html")) {
        return;
      }

      Document document = Jsoup.parse(response.body().string(), url.toString());

import java.io.File;
import java.io.IOException;

public final class UploadProgress {
  private static final String IMGUR_CLIENT_ID = "9199fdef135c122";
  private static final MediaType MEDIA_TYPE_PNG = MediaType.get("image/png");

  private final OkHttpClient client = new OkHttpClient();

  public void run() throws Exception {
    // Use the imgur image upload API as documented at https://api.imgur.com/endpoints/image