I am using MongoDB 2.6.1 and mongo java driver 2.12.1.

When I use function “db.update(arg..)” to update a nonexistent document, the result is “

{ "serverUsed" : "localhost:27017" , "ok" : 1 , "n" : 0 , "updatedExisting" : true}

”, the “updatedExisting” is true , this is incorrect.

When I use mongo java driver 2.11.3, the result is correct.