InvalidTypeIdException Cannot deduce unique subtype

I am attempting to use deduction with 2.13.3

I have a set of classes that have a largish set of properties (over 10) and sometimes only differ by one or two fields

Some of the classes are able to deserialize correctly but others get this exception

com.fasterxml.jackson.databind.exc.InvalidTypeIdException: Could not resolve subtype of [simple type, class xxxxx]: Cannot deduce unique subtype of oxxxxxxx (3 candidates match)

If I step debug the code I can see this before the error is thrown. It appears there is something called subTypeFingerprints that shows this

What is interesting is that the error says 3 candidates match and as you can see from the picture above… there are 3 candidates that match up to the value of 11…

is there a limit on the number of comparisons that are made? As you can see the fingerprints seem to indicate that a deduction should be possible, yet I am getting this error

-john

[jmjava]

@cowtowncoder THANK YOU VERY MUCH!!! I will give this a try.

-john

[cowtowncoder]

(sounds like use of As.EXTERNAL_PROPERTY was what was needed – closing. There is also an existing issue wrt Deduction not taking into account absence of property.