Networking · interview question
What happens if you attempt to deserialize a JSON array into a Java class with Jackson and FAIL_ON_UNKNOWN_PROPERTIES is set to true?
Multiple choiceHardchapter-11-curatedpremiumnetworkingjackson-objectmapper
Answer and explanation
Correct answer
C. An exception is thrown if the array cannot be mapped.
Why
When FAIL_ON_UNKNOWN_PROPERTIES is true, Jackson will throw an exception if it encounters a property (or structure) it cannot map during deserialization.
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