Solution : https://service.sap.com/sap/support/notes/1599445 (SAP Service marketplace login required)
Key words : 
extras -> system information -> target systemthe network address, 'tcp/id connections' folder tree, causing risk terminator plug-, error 'bean virsa/rt_java_risk_analysis, correspondent rfc destination found, /unique ip address, risk terminator plug-, t-code reason, error intermittently occurs, sender system sends
Related Notes : 
       
| 1225960 | /VIRSA/RT_JAVA_RISK_ANALYSIS Error in Risk Terminator | 
| 1168120 |