Solution : https://service.sap.com/sap/support/notes/593513 (SAP Service marketplace login required)
Key words :
rfc clients request connections, explicit releasing rfc connections, normal communications model, back end closes, rfc server closes, symptom rfc connections, java connectorsap portal, abap kernel version 6, 'rfcopenex' rfc interface, 'rfcclose' rfc interface
Related Notes :
| 595987 | SAP Java Connector Service Release 2.0.8 |