[Solved] What is wrong with this code snippet that tries to pretty-print JSON? ObjectMapper mapper = new ObjectMapper(); mapper.enable(SerializationFeature.PRETTY_PRINT); String json = mapper.... | Spring Boot

Spring Boot - Request and Response Handling

What is wrong with this code snippet that tries to pretty-print JSON?

ObjectMapper mapper = new ObjectMapper();
mapper.enable(SerializationFeature.PRETTY_PRINT);
String json = mapper.writeValueAsString(user);

ASerializationFeature.PRETTY_PRINT does not exist; should use INDENT_OUTPUT

BwriteValueAsString cannot produce pretty JSON

CObjectMapper must be configured with a custom serializer

DPretty print requires calling writeValue() instead

Step-by-Step Solution

Solution:

Step 1: Check correct SerializationFeature for pretty print
The correct feature name is INDENT_OUTPUT, not PRETTY_PRINT.
Step 2: Verify usage of writeValueAsString
writeValueAsString supports pretty printing if INDENT_OUTPUT is enabled.
Final Answer:
SerializationFeature.PRETTY_PRINT does not exist; should use INDENT_OUTPUT -> Option A
Quick Check:
Use INDENT_OUTPUT for pretty print [OK]

Quick Trick: Use SerializationFeature.INDENT_OUTPUT for pretty JSON [OK]

Common Mistakes:

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What is wrong with this code snippet that tries to pretty-print JSON?