benchmarkTransformer.setNextForwarder(byteBufferToArrayTransformer);
benchmarkTransformer.setChannelWriter(channelWriter);
benchmarkTransformer.setSSLOutputForwarder(sslOutputTransformer);
// set up input transformation (just SSL)
sslInputTransformer = new SSLInputForwarder(sslEngine);
channelReader.setNextForwarder(sslInputTransformer);
sslInputTransformer.setNextForwarder(
new BenchmarkClientTransformer());
// cross reference both transformers (needed for handshake)