Networking · interview question
How does the Jackson ObjectMapper handle unknown properties by default?
Multiple choiceEasychapter-11-curatedpremiumnetworkingtimeouts-and-retries
Answer and explanation
Correct answer
A. Ignores them and does not fail.
Why
By default, Jackson's ObjectMapper ignores unknown properties in JSON data when deserializing. This behavior avoids failures when the JSON includes fields that are not present in the target Java class.
Test yourself on Networking
A free test with instant, explained results. No account needed.
More Networking questions
- Which exception should be caught to handle timeouts specifically in HTTP client operations?
- In Java socket programming, what is the role of a two-way communication endpoint?
- Why does a Socket in Java networking matter in practice?
- When using Jackson's ObjectMapper to deserialize JSON, how can you handle unknown JSON properties without throwing an…
- Why do teams use Jackson's ObjectMapper in a Java application in production code?
- Why does the Content-Type header in HTTP requests matter in practice?