- Vert.x http://Vertx.io
- Spark http://Sparkjava.com
- Jooby http://jooby.org
- Rapidoid http://rapidoid.org
- Pippo http://pippo.ro
- Blade http://bladejava.com
- Javalite http://javalite.io
- Microserver https://github.com/aol/micro-server
- JFry https://github.com/ggalmazor/jfry
And also the ones from Awesome-Java: https://github.com/akullpp/awesome-java#web-frameworks
- Apache Tapestry - Component-oriented framework for creating dynamic, robust, highly scalable web applications.
- Apache Wicket - Component-based web application framework similar to Tapestry with a stateful GUI.
- Google Web Toolkit - Toolbox which includes a Java-to-JavaScript compiler for client-side code, XML parser, API for RPC, JUnit integration, internationalization support and widgets for the GUI.
- Grails - Groovy framework with the aim to provide a highly productive environment by favoring convention over configuration, no XML and support for mixins.
- Ninja - Full stack web framework.
- Pippo - Small, highly modularized Sinatra-like framework.
- Play - Uses convention over configuration, hot code reloading and display of errors in the browser.
- PrimeFaces - JSF framework which has a free and a commercial version with support. Provides several frontend components.
- Ratpack - Set of libraries that facilitate fast, efficient, evolvable and well tested HTTP applications.
- Spring Boot - Microframework which simplifies the development of new Spring applications.
- Spring - Provides many packages ranging from dependency injection to aspect-oriented programming to security.
- Vaadin - Event-driven framework build on top of GWT. Uses server-side architecture with Ajax on the client-side.
You are missing http://www.dropwizard.io/