question: public static SimpleXid createRandom ( ) { int formatId = next . getAndIncrement ( ) ; byte [ ] bq = new byte [ MAXBQUALSIZE ] ; MathUtils . randomBytes ( bq ) ; byte [ ] gt = new byte [ MAXGTRIDSIZE ] ; MathUtils . randomBytes ( gt ) ; return new SimpleXid ( formatId , bq , gt ) ; }
target:  Create a new random xid.