Hello,

We are starting new project - the portal with a large number of users simultaneously logged in 17000.

Portal will be processed and presented mainly XML documents.

50% of the logic will be available on the outside through the ESB.

Target solution (portal) will be run on JBoss Application Platform.

Technology (portal):

1. Front Controller - Struts 2

2. Business logic:

  a) EJB 3 (local SLSB) or Spring

  b) Business Delegate Pattern (access ESB)

3) ORM JPA

Please help in the selection in item 2a on the above assumptions (EJB 3 or Spring).

I would also mention that the performance is crucial.

Thanks in advance

gienas