Traditionally web applications wrapped up business logic, data retrieval, validation, persistence, security and UI in a single bundle deployed on a web server such as Tomcat. This approach continues to work well but nowadays it’s called “monolithic” and many web applications are moving to cloud-based microservices. Java Magazine just published an article about a new simple framework “Helidon” that helps a developer to create container-friendly microservices with a minimum code running straight Java SE – Link. See also Decision Microservices
