[Quickfixj-users] i want to add one new field in logon process how to create it

[Fuad A. <fua...@gm...>]

hi all, i have follow how add parameter in to admin for logon
if (message instanceof quickfix.fix44.Logon) {
            try {
                System.out.println(" Login " + SenderCompID + " " +
TargetCompID);
                message.setString(quickfix.field.SenderCompID.FIELD,
SenderCompID);
                message.setString(quickfix.field.TargetCompID.FIELD,
TargetCompID);
                message.setString(quickfix.field.Password.FIELD,
TargetCompID);
                message.setString(quickfix.field.EncryptMethod.FIELD,
EncryptMethod);

message.setString(quickfix.field.OZExternalFIXSpecVersion.FIELD,
OZExternalFIXSpecVersion);
                System.out.println(" Logon " + message.toString());
            }
but when i want add OZExternalFIXSpecVersion i got error i must create the
class my question is how to add new class for field ? or any idea for add
this in initiator.config ?

i also have add OZExternalFIXSpecVersion in my fix44.xml dictionary
best regards,

Fuad