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Q: 

Application-specific IIOP listening socket in J2EE

I recently noticed that an Crystal Reports viewer J2EE app, based on Crystal Enterprise Java SDK seems, to open its own IOP listener on a custom port (it seems to recieve some callbacks from report server this way).

The question is - given this is a J2EE application, how does it open the IIOP listener, and is it (from the perspective of J2EE architecture) OK to just do it - I assume this means to open a listening socket from the app?

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