Method convertHeadersToArray

netty/src/main/java/io/grpc/netty/Utils.java:256–267

(Http2Headers http2Headers)

  }

  @CheckReturnValue
  private static byte[][] convertHeadersToArray(Http2Headers http2Headers) {
    // The Netty AsciiString class is really just a wrapper around a byte[] and supports
    // arbitrary binary data, not just ASCII.
    byte[][] headerValues = new byte[http2Headers.size() * 2][];
    int i = 0;
    for (Map.Entry<CharSequence, CharSequence> entry : http2Headers) {
      headerValues[i++] = bytes(entry.getKey());
      headerValues[i++] = bytes(entry.getValue());
    }
    return toRawSerializedHeaders(headerValues);
  }

  private static byte[] bytes(CharSequence seq) {
    if (seq instanceof AsciiString) {