Is it possible for QuickFIX/J to remove some tags of the incoming FIX message? If yes, why would it be like that? The problem is when receiving 35=X (MarketDataIncrementalRefresh) message. The message comes from the server, and has the corresponding tangs, including the tags 48 SecurityID and 22 SecurityIDSource and the checksum is the correct one, calculated including those 2 fields. When processing the message in the client, the message does no longer contain the 48 and 22 tags and the checksum is also different. Because of those 2 missing tags, that are required, the client cannot process the message. I couldn't trace the cause of this. (The data dictionary contains the tags 22 and 48 and are marked as required).
The session config:
[session]
BeginString=FIXT.1.1
SocketConnectPort=9122
UseDataDictionary=Y
AllowUnknownMsgFields=Y
ValidateFieldsOutOfOrder=N
ValidateUnorderedGroupFields=N
ValidateIncomingMessage=N
TransportDataDictionary=transport_dict_FIXT11.xml
AppDataDictionary=data_dict_FIX44.xml
SocketUseSSL=Y
EnabledProtocols=TLSv1.2
SocketKeyStore=file.jks
SocketKeyStorePassword=password
Example of message from log:
Failed to process 8=FIXT.1.1|9=145|35=X|34=226|49=SenderCompID|52=20201202-13:42:34.345|56=TargetCompID|262=EU000A1U99281083|268=1|279=0|264=1|269=0|278=EU000A1U9928_BID_1|110=1000|10=217:
quickfix.FieldNotFound: Field [48] was not found in message.