JHipster is a development platform to generate, develop and deploy Spring Boot + Angular Web applications and Spring microservices.
The Spring Framework is an application framework and inversion of control container for the Java platform.
JUnit is a simple framework to write repeatable tests.
Build your web UIs in HTML or Java
A powerful Groovy-based web application framework for the JVM
Spark - A micro framework for creating web applications in Java 8 with minimal effort
Hibernate an open source Java persistence framework project.
Apache Sling is an innovative web framework that is intended to bring back the fun to web development.
Mocking framework for unit tests in Java.
Apache Struts is a free, open-source, MVC framework for creating elegant, modern Java web applications. It favors convention over configuration, is extensible using a plugin architecture, and ships with plugins to support REST, AJAX and JSON.
Apache OFBiz is an open source product for the automation of enterprise processes that includes framework components and business applications for ERP (Enterprise Resource Planning), CRM (Customer Relationship Management), E-Business / E-Commerce, SCM (Supply Chain Management), MRP (Manufacturing Resource Planning), MMS/EAM (Maintenance Management System/Enterprise Asset Management), POS (Point Of Sale).
aspectj is a seamless aspect-oriented extension to the Javatm programming language
Apache Nutch is a extensible and scalable open source web crawler software project.Nutch provides extensible interfaces such as Parse, Index and ScoringFilter's for custom implementations e.g. Apache Tika for parsing.
The Apache Software Foundation announces Apache Wicket v7.0 Open Source Java web framework that powers thousands of web applications and web sites for governments, stores, universities, cities, banks, email providers, and more.
Apache Tiles allows authors to define page fragments which can be assembled into a complete pages at runtime.
RAP provides a powerful widget toolkit and integrates well with proven technologies such as OSGi and JEE. You can write your application entirely in Java, re-use code and benefit from first-class IDE tools.
Apache Jena a free and open source Java framework for building Semantic Web and Linked Data applications.
Eclipse Jetty provides a Web server and javax.servlet container, plus support for HTTP/2, WebSocket, OSGi, JMX, JNDI, JAAS and many other integrations.
Apache Cocoon is a web development framework built around the concepts of separation of concerns and component-based web development.