Minor - P4 What I tried to do is to run a code from the documentation to use BasicDBObject in the new CRUD API. My test document contained a BSON symbol and I got an exception where I didn't expect to have one.
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scala> import com.mongodb._ import com.mongodb._ scala> val db = new MongoClient("localhost").getDatabase("test") июл 31, 2015 7:59:31 PM com.mongodb.diagnostics.logging.JULLogger log INFO: Cluster created with settings {hosts=[localhost:27017], mode=SINGLE, requiredClusterType=UNKNOWN, serverSelectionTimeout='30000 ms', maxWaitQueueSize=500} db: com.mongodb.client.MongoDatabase = com.mongodb.MongoDatabaseImpl@2ff5be19 scala> июл 31, 2015 7:59:31 PM com.mongodb.diagnostics.logging.JULLogger log INFO: Opened connection [connectionId{localValue:1, serverValue:6}] to localhost:27017 июл 31, 2015 7:59:31 PM com.mongodb.diagnostics.logging.JULLogger log INFO: Monitor thread successfully connected to server with description ServerDescription{address=localhost:27017, type=STANDALONE, state=CONNECTED, ok=true, version=ServerVersion{versionList=[3, 0, 4]}, minWireVersion=0, maxWireVersion=3, electionId=null, maxDocumentSize=16777216, roundTripTimeNanos=560000} scala> scala> db.getCollection("test").find.first июл 31, 2015 7:59:52 PM com.mongodb.diagnostics.logging.JULLogger log INFO: Opened connection [connectionId{localValue:2, serverValue:7}] to localhost:27017 res0: org.bson.Document = Document{{_id=55bb50acb5b97f6d98b6186c, i32=1, s=str, sym=symbol}} scala> db.getCollection("test", classOf[BasicDBObject]).find.first org.bson.BsonInvalidOperationException: readString can only be called when CurrentBSONType is STRING, not when CurrentBSONType is SYMBOL. at org.bson.AbstractBsonReader.verifyBSONType(AbstractBsonReader.java:655) at org.bson.AbstractBsonReader.checkPreconditions(AbstractBsonReader.java:687) at org.bson.AbstractBsonReader.readString(AbstractBsonReader.java:428) at org.bson.codecs.StringCodec.decode(StringCodec.java:35) at org.bson.codecs.StringCodec.decode(StringCodec.java:27) at com.mongodb.DBObjectCodec.readValue(DBObjectCodec.java:306) at com.mongodb.DBObjectCodec.readDocument(DBObjectCodec.java:345) at com.mongodb.DBObjectCodec.decode(DBObjectCodec.java:136) at com.mongodb.DBObjectCodec.decode(DBObjectCodec.java:61) at com.mongodb.connection.ReplyMessage.<init>(ReplyMessage.java:57) at com.mongodb.connection.QueryProtocol.receiveMessage(QueryProtocol.java:290) at com.mongodb.connection.QueryProtocol.execute(QueryProtocol.java:229) at com.mongodb.connection.QueryProtocol.execute(QueryProtocol.java:38) at com.mongodb.connection.DefaultServer$DefaultServerProtocolExecutor.execute(DefaultServer.java:155) at com.mongodb.connection.DefaultServerConnection.executeProtocol(DefaultServerConnection.java:219) at com.mongodb.connection.DefaultServerConnection.query(DefaultServerConnection.java:166) at com.mongodb.operation.FindOperation$1.call(FindOperation.java:397) at com.mongodb.operation.FindOperation$1.call(FindOperation.java:394) at com.mongodb.operation.OperationHelper.withConnectionSource(OperationHelper.java:195) at com.mongodb.operation.OperationHelper.withConnection(OperationHelper.java:168) at com.mongodb.operation.FindOperation.execute(FindOperation.java:394) at com.mongodb.operation.FindOperation.execute(FindOperation.java:57) at com.mongodb.Mongo.execute(Mongo.java:738) at com.mongodb.Mongo$2.execute(Mongo.java:725) at com.mongodb.FindIterableImpl$FindOperationIterable.first(FindIterableImpl.java:197) at com.mongodb.FindIterableImpl.first(FindIterableImpl.java:140) ... 43 elided