Описание тега geronimo

Apache Geronimo - open source JEE5 (from ver. 2.*) / JEE6 (from ver. 3.*) complaint java server.

Apache Geronimo is an open source application server developed by the Apache Software Foundation and distributed under the Apache license. Geronimo 2 is currently compatible with the Java Enterprise Edition (Java EE) 5.0 specification such as JDBC, RMI, e-mail, JMS, web services, XML, Enterprise JavaBeans, Connectors, servlets, portlets and JavaServer Pages. This allows developers to create enterprise applications that are portable and scalable, and that integrate with legacy technologies. Geronimo 3 is compatible with Java EE 6.0.

From Wikipedia.