Spring Framework - The Spring Framework provides a comprehensive programming and configuration model for modern Java-based enterprise applications - on any kind of deployment platform.
jHipster - JHipster is a development platform to quickly generate, develop, & deploy modern web applications & microservice architectures.
Spark Mail - Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues
Vaadin Framework - Vaadin is a web application framework for Rich Internet Applications (RIA).
Grails - An Open Source, full stack, web application framework for the JVM
CUBA.platform - A Full Stack Enterprise Java Framework with lots of out of the box functionality and amazing...