Micronaut is a modern, JVM-based, full-stack framework for building modular, easily testable microservice applications. This tutorial will create three microservices using Java, Kotlin and Groovy.

Learn how and why Java developers use method overloading, then test your learning against the Java virtual machine itself.

To put this in Java terms, all properties declared as part of a record are final. When the Java runtime knows a set of properties will not change during the application's lifecycle, the JVM can ...