driver-core/src/main/com/mongodb/operation/CommandOperationHelper.java
private static <D, T> T executeCommand(final String database, final BsonDocument command,
                                           final Decoder<D> decoder, final ConnectionSource source, final Connection connection,
                                           final ReadPreference readPreference,
                                           final CommandReadTransformer<D, T> transformer, final SessionContext sessionContext) {
        return executeCommand(database, command, new NoOpFieldNameValidator(), decoder, source, connection,
                readPreference, transformer, sessionContext);
    }
private static <D, T> T executeCommand(final String database, final BsonDocument command,
                                           final Decoder<D> decoder, final ConnectionSource source, final Connection connection,
                                           final ReadPreference readPreference,
                                           final CommandReadTransformer<D, T> transformer, final SessionContext sessionContext) {
        return executeCommand(database, command, new NoOpFieldNameValidator(), decoder, source, connection,
                readPreference, transformer, sessionContext);
    }
/* Private Connection Helpers