JBoss

JBoss Application Server (or JBoss AS) is an open-source Java EE-based application server.

JBoss not only implements a server that runs on Java, but it also implements the Java EE part of Java. As it’s Java-based, the JBoss application server operates cross-platfor, so that it can be used on any operating system that supports Java.

JBoss AS was developed by JBoss, now a division of Red Hat.