Details
Description
If a message contains a repeating group in which the first tag is not defined in the dictionary, a NullPointerException is thrown while parsing the message/group.
To reproduce, you can use this FIX string with the standard 4.2 dictionary.
It contains an undefined tag (9876) as the first tag of the NoAllocs (78) repeating group.
8=FIX.4.2|9=130|35=D|34=2|49=SND1|52=20190719-04:56:39.042|56=TGT1|11=1|78=1|9876=npe|79=a|80=1|21=1|55=x|54=1|60=20190719-04:56:53.826|38=1|40=1|10=169|
Here is the stack trace for 1.6.4:
Exception in thread "main" java.lang.NullPointerException
at quickfix.Message.checkFieldValidation(Message.java:662)
at quickfix.Message.parseGroup(Message.java:633)
at quickfix.Message.parseBody(Message.java:559)
at quickfix.Message.parse(Message.java:470)
at quickfix.Message.fromString(Message.java:453)
[...]
and for 2.1.1:
Exception in thread "main" java.lang.NullPointerException
at quickfix.Message.checkFieldValidation(Message.java:748)
at quickfix.Message.parseGroup(Message.java:711)
at quickfix.Message.parseBody(Message.java:637)
at quickfix.Message.parse(Message.java:548)
at quickfix.Message.fromString(Message.java:531)
[...]