Wildfly - WildFly is a flexible, lightweight application server.
Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies
JBoss - JBoss is Red Hats Java EE 5-compliant (soon Java EE 6-compliant) application server.
Sabern Brandifyer - Brandifyer makes the life of marketers easier with one easy to use and highly customizable brand portal solution.
Payara Server - Payara Server is a fully supported, developer-friendly, open source application server. Innovative, cloud-native, optimized for production deployments. Jakarta EE & MicroProfile compatible.
Liferay Digital Experience Platform - An enterprise-grade platform that enables companies to create and connect personalized digital experiences across web, mobile, and social.