Solution : https://service.sap.com/sap/support/notes/523423 (SAP Service marketplace login required)
Key words :
/sap/mw/jco/jco$exception, line reference jcoproxy jco, sap j2ee engine 610 solution 1, sap j2ee engine, symptom java iviews, terms enterprise portal, inqmy reason, <610-install-dir>\, \managers\library, /3 systemsnoclassdeffounderror
Related Notes :
| 522269 | Central Note for Enterprise Portal 5.0 SP 3 |
| 493172 | EP 5.0: Central Note for SAP J2EE Engine 6.10 |