val requestBody: RequestBody =
      object : RequestBody() {
        override fun contentType(): MediaType? = null

        override fun contentLength(): Long = if (uploadKind === TransferKind.CHUNKED) -1L else n.toLong()

        override fun writeTo(sink: BufferedSink) {
          if (writeKind == WriteKind.BYTE_BY_BYTE) {
            for (i in 0 until n) {
              sink.writeByte('x'.code)
            }

    Arrays.fill(buffer, 'x'.code.toByte())
    return object : RequestBody() {
      override fun contentType() = "text/plain; charset=utf-8".toMediaType()

      override fun contentLength(): Long = if (chunked) -1L else size

      override fun writeTo(sink: BufferedSink) {
        var count = 0
        while (count < size) {
          sink.write(buffer, 0, Math.min(size - count, writeSize.toLong()).toInt())

/**
 * The keys for message.
 * @author FreeGen
 */
public class FessMessages extends FessLabels {

    /** The serial version UID for object serialization. (Default) */
    private static final long serialVersionUID = 1L;

    /** The key of the message:  */
    public static final String ERRORS_front_header = "{errors.front_header}";

    /** The key of the message:  */

/**
 * The keys for message.
 * @author FreeGen
 */
public class FessLabels extends UserMessages {

    /** The serial version UID for object serialization. (Default) */
    private static final long serialVersionUID = 1L;

    /** The key of the message: Realm */
    public static final String LABELS_AUTH_REALM = "{labels.authRealm}";

    /** The key of the message: Status */