MessageFactory cannot create certain groups

MessageFactory returns a null from the following signature for certain groups:

public Group create(String beginString, String msgType, int correspondingFieldID);

For example,

messageFactory("FIX.4.4", MsgType.ORDER_SINGLE, NoPartyIDs.FIELD);

returns a null.

I think the problem is with the code generation of message factories. For example, the relavant code in quickfix.fix44.MessageFactory does not include a check for NoPartyIDs.FIELD, although this is a group defined for the NewOrderSingle message type.

if("D".equals(msgType)) {
switch(correspondingFieldID)

{ case quickfix.field.NoAllocs.FIELD: return new quickfix.fix44.NewOrderSingle.NoAllocs(); case quickfix.field.NoTradingSessions.FIELD: return new quickfix.fix44.NewOrderSingle.NoTradingSessions(); case quickfix.field.NoUnderlyings.FIELD: return new quickfix.fix44.NewOrderSingle.NoUnderlyings(); }

}

It is possible that this code is not generated because NoPartyIDs is part of the "Parties" component defined within the NewOrderSingle message.