Further tweak UtilUnsafe class to only cause a single warning for Unsafe usage for the entire JVSTM
Further tweak UtilUnsafe class to only cause a single warning for Unsafe usage for the entire JVSTM

inesc-id-esw/jvstm,inesc-id-esw/jvstm,zsimoes/jvstm,nmldiegues/jvstm