Solution : https://service.sap.com/sap/support/notes/745175 (SAP Service marketplace login required)
Key words :
20with patch levels pl21, fullyspecified connector-j2ee-engine, symptom connection pool misbehave, connector-j2ee-engine, sap j2ee engine 6, terms eisconnector service, theeisconnector service properties, connection pool problem, connection pool, theconnection pool
Related Notes :
| 761918 | Updated RFC metadata is not returned using the R3 connector |
| 754136 | Phyisical connections to the back-end system remain open |