Support SslMasterKeyHandler in NettyServerBuilder

I have a problem with adding SslMasterKeyHandler#newWireSharkSslMasterKeyHandler on the server side. I tried to do this with channelFactory:

builder.channelFactory(() -> {
          final ServerChannel ch = GrpcUtil.getDefaultServerChannelFactory().newChannel();
          final ChannelPipeline pipeline = ch.pipeline();
          pipeline.addLast(SslMasterKeyHandler.newWireSharkSslMasterKeyHandler());
          return ch;
        })

and later with ProtocolNegotiator:

final SslContext sslContext = GrpcSslContexts.configure(sslClientContextBuilder).build();
final io.grpc.netty.ProtocolNegotiator negotiator = ProtocolNegotiators.serverTls(sslContext);
builder.protocolNegotiator(tlsNegotiator(negotiator);

In the first case, the setting had no effect. In the second case, the server worked incorrectly (it stopped accepting connections, even without a handler, just with a negotiator wrapper).

What should be the proper implementation?