OpenXava - OpenXava is a Web Java Framework for Rapid Development of Enterprise Applications.
jHipster - JHipster is a development platform to quickly generate, develop, & deploy modern web applications & microservice architectures.
Spring Framework - The Spring Framework provides a comprehensive programming and configuration model for modern Java-based enterprise applications - on any kind of deployment platform.
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
Django - The Web framework for perfectionists with deadlines