[DEVMINOR] Fix JNI Warnings
[DEVMINOR] Fix JNI Warnings

Change-Id: I356f5800fd12600a5feea41eb1621a9722be0030
Reviewed-on: https://gerrit.parrot.biz/53422
Reviewed-by: Jean-Baptiste Dubois <3904e157e51b6776698fd1c0b3e878d58932a523@parrot.com>

Parrot-Developers/libARSAL,Parrot-Developers/libARSAL,Parrot-Developers/libARSAL