- add reserve size security check, bug LCGUTIL-394
- add reserve size security check, bug LCGUTIL-394

EricKTCheung/davix,EricKTCheung/davix,mhellmic/davix,mhellmic/davix,cern-it-sdc-id/davix,EricKTCheung/davix,cern-it-sdc-id/davix,mhellmic/davix,cern-it-sdc-id/davix,EricKTCheung/davix,cern-it-sdc-id/davix,mhellmic/davix