Guava - Google core libraries for Java 6+.
Grails - An Open Source, full stack, web application framework for the JVM
RxJava - RxJava – Reactive Extensions for the JVM is a library for composing asynchronous and event-based programs using observable sequences.
Vaadin Framework - Vaadin is a web application framework for Rich Internet Applications (RIA).
Quarkus - Quarkus: Supersonic Subatomic Java. . Contribute to quarkusio/quarkus development by creating an account on GitHub.
Spring Framework - The Spring Framework provides a comprehensive programming and configuration model for modern Java-based enterprise applications - on any kind of deployment platform.