* Iterables#filter(Iterable, Class)} for related functionality.)
   *
   * <p><b>Java 8+ users:</b> many use cases for this method are better addressed by {@link
   * java.util.stream.Stream#filter}. This method is not being deprecated, but we gently encourage
   * you to migrate to streams.
   */
  // TODO(kevinb): how to omit that last sentence when building GWT javadoc?

	default:
		return xml.UnmarshalError(fmt.Sprintf("expected element type <LegalHold>/<ObjectLockLegalHold> but have <%s>",
			start.Name.Local))
	}
	for {
		// Read tokens from the XML document in a stream.
		t, err := d.Token()
		if err != nil {
			if err == io.EOF {
				break
			}
			return err
		}

		if se, ok := t.(xml.StartElement); ok {
			switch se.Name.Local {
			case "Status":

          .build(),
      )
    val response = call.execute()
    assertFailsWith<IOException> {
      response.body.string()
    }.also { expected ->
      assertThat(expected.message).isEqualTo("unexpected end of stream")
    }
    assertThat(listener.recordedEventTypes()).containsExactly(
      "CallStart",
      "ProxySelectStart", "ProxySelectEnd", "DnsStart", "DnsEnd",

    private val responseHeaders: Headers
    private val handshake: Handshake?
    private val sentRequestMillis: Long
    private val receivedResponseMillis: Long

    /**
     * Reads an entry from an input stream. A typical entry looks like this:
     *
     * ```
     * http://google.com/foo
     * GET
     * 2
     * Accept-Language: fr-CA
     * Accept-Charset: UTF-8
     * HTTP/1.1 200 OK
     * 3

 * or network should be done asynchronously.
 */
abstract class EventListener {
  /**
   * Invoked as soon as a call is enqueued or executed by a client. In case of thread or stream
   * limits, this call may be executed well before processing the request is able to begin.
   *
   * This will be invoked only once for a single [Call]. Retries of different routes or redirects

            headerCount,
          )
          nextHeaderIndex += entriesToEvict
        }
        return entriesToEvict
      }

      /**
       * Read `byteCount` bytes of headers from the source stream. This implementation does not
       * propagate the never indexed flag of a header.
       */
      @Throws(IOException::class)
      fun readHeaders() {
        while (!source.exhausted()) {

    protected String[] toStringArray(final Object value) {
        if (value instanceof String[]) {
            return (String[]) value;
        } else if (value instanceof List) {
            return ((List<?>) value).stream().map(v -> v.toString()).toArray(n -> new String[n]);
        }
        String str = DfTypeUtil.toString(value);
        if (str == null) {
            return null;
        }
        return new String[] { str };

    val inputStream = connection.getInputStream()
    assertThat(inputStream.read()).isEqualTo('a'.code)
    try {
      val byteRead = inputStream.read()
      // OpenJDK behavior: end of stream.
      assertThat(byteRead).isEqualTo(-1)
    } catch (e: ProtocolException) {
      // On Android, HttpURLConnection is implemented by OkHttp v2. OkHttp
      // treats an incomplete response body as a ProtocolException.

    val inputStream = connection.getInputStream()
    assertThat(inputStream!!.read()).isEqualTo('a'.code)
    try {
      val byteRead = inputStream.read()
      // OpenJDK behavior: end of stream.
      assertThat(byteRead).isEqualTo(-1)
    } catch (e: ProtocolException) {
      // On Android, HttpURLConnection is implemented by OkHttp v2. OkHttp
      // treats an incomplete response body as a ProtocolException.

		return
	}

	// Ensure body content type is opaque to ensure that request body has not
	// been interpreted as form data.
	contentType := r.Header.Get("Content-Type")
	if contentType != "application/octet-stream" {
		writeErrorResponseJSON(ctx, w, errorCodes.ToAPIErr(ErrBadRequest), r.URL)
		return
	}

	// Validate operation
	operation := mux.Vars(r)["operation"]
	if operation != "attach" && operation != "detach" {