My learning was divided in:
A poc of JSP at folder random_jsp Some examples of EJB3.1 using Apache TomEE (inspired in http://tomee.apache.org/examples-trunk/) at the other folders, such as: -session-beans
It is in the pipeline to study: entity managers CDI EJB REST WS JMS/MDB security DataSources EJB lookups Environment Entries Java EE Connectors Testing techniques FWs Meta annotations Proxy beans EJB Legacy Other features Misc