mongodb - JacksonDBCollection findOne query and not working java -

i trying implement findone query on json:

my json looks this:

{   "_id":{     "$oid":"5613b8d360b292805a5d7f2d"   },   "resellerid":"1" .... } 

and here java code:

final jacksondbcollection<mongodocument, string> resellerwidget =      jacksondbcollection.wrap(mongodb.getcollection("resellerwidget"),              mongodocument.class, string.class);  mongodocument md =      resellerwidget.findone(dbquery.and(dbquery.is("_id",widgetid),     (dbquery.is("resellerid", resellerid)))); 

but not find record. when query widgetid though, find it.

relevant part of mongodocument:

@jsonignoreproperties(ignoreunknown = true) public class mongodocument {      private string id;         private string resellerid;     private final map<string, jsonnode> extraproperties = new hashmap<>();      @objectid     @jsonproperty("_id")     public string getid() {         return this.id;     }      @objectid     @jsonproperty("_id")     public void setid(string id) {         this.id = id;     }       @jsonproperty("resellerid")     public string getresellerid() {         return this.resellerid;     }      @jsonproperty("resellerid")     public void setresellerid(string id) {         this.resellerid = id;     } 

anyone idea i'm missing?

code works, frontend contained bug submitting wrong field name.