Networking · interview question
When using Jackson's ObjectMapper to deserialize JSON, what should you consider regarding unknown properties?
Multiple choiceMediumchapter-11-curatedpremiumnetworkingasynchronous-http
Answer and explanation
Correct answer
D. Configure it to ignore unknown properties to prevent exceptions.
Why
To prevent exceptions when deserializing JSON with unknown properties, configure the ObjectMapper to ignore them. This ensures the deserialization process is robust against changes or additions to the JSON structure that aren't represented in the Java class.
Test yourself on Networking
A free test with instant, explained results. No account needed.
More Networking questions
- What does the HttpClient.newHttpClient() method do?
- Why is it useful to configuring FAIL_ON_UNKNOWN_PROPERTIES to false in Jackson's ObjectMapper?
- How would you explain a common issue when using ObjectMapper to deserialize nested JSON objects into Java classes in…
- What happens if you attempt to deserialize a JSON array into a Java class with Jackson and FAIL_ON_UNKNOWN_PROPERTIES…
- Why is it important to set timeouts on HTTP requests?
- How would you explain a potential benefit of using CompletableFuture.supplyAsync to fetch data from multiple API…