Explore the latest features of Servlet 4.0 in this 46-minute conference talk by Ed Burns and Shing wai Chan from Oracle. Discover how these new additions can be applied to modern microservices architectures. Learn about HTTP/2 support, including server push, default context path, mapping discovery, encoding clarifications, and HTTP trailers with their relevance to gRPC. Examine these features in the context of current application development trends such as containerization, continuous delivery, 12-factor apps, and adapting legacy apps for cloud-native technologies. Gain insights into breaking up monoliths, Java EE samples, classical HTTP cases, server push concepts, JSF demos, HTTP trailers, pseudo headers, gRPC integration, HTTP server requests and exceptions, request-side trailers, view map discovery, and associated challenges.