OpenXava - OpenXava is a Web Java Framework for Rapid Development of Enterprise Applications.
Grails - An Open Source, full stack, web application framework for the JVM
Zoho Creator - Zoho Creator is a low-code application development platform that helps you build a custom, mobile-ready apps to run your business.
Vaadin Framework - Vaadin is a web application framework for Rich Internet Applications (RIA).
zeroqode - Build your app up to 10x faster with no-code app templates
Spring Framework - The Spring Framework provides a comprehensive programming and configuration model for modern Java-based enterprise applications - on any kind of deployment platform.