Solution : https://service.sap.com/sap/support/notes/963383 (SAP Service marketplace login required)
Key words : 
-ascii header values support solution, case-insensitive x-correlationid, http clf access lognote 962904, cumulative patch reason, garbage content appears, slow networks due, 40 latest sp version, attached sda files, web container services, terms j2ee engine
Related Notes : 
       
| 1059901 | How to deploy patches with SDM | 
| 1033356 | Multipart non-ASCII header values support | 
| 994556 | Case-insensitive X-CorrelationID value for LogHeaderValue | 
| 989617 | Single Sign-On fails in slow networks due to leading RN | 
| 971773 | Crawler run on JSP files results in excessive db operations | 
| 966475 | 400 Bad Request and missing records from HTTP CLF access log | 
| 962904 | Garbage content appears in the portal | 
| 955212 | Known issues with SAP J2EE 6.40 SP17 | 
| 943708 | Solution Manager Diagnostics http access logs | 
| 656711 | Deploying Java Support Packages with SDM |