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In a class extending ResponseEntityExceptionHandler, which method would you override to customize the response when a client sends an unsupported media type?

medium📝 component behavior Q4 of 15
Spring Boot - Exception Handling
In a class extending ResponseEntityExceptionHandler, which method would you override to customize the response when a client sends an unsupported media type?
Aprotected ResponseEntity<Object> handleMethodArgumentNotValid(MethodArgumentNotValidException ex, HttpHeaders headers, HttpStatusCode status, WebRequest request)
Bprotected ResponseEntity<Object> handleHttpRequestMethodNotSupported(HttpRequestMethodNotSupportedException ex, HttpHeaders headers, HttpStatusCode status, WebRequest request)
Cprotected ResponseEntity<Object> handleMissingServletRequestParameter(MissingServletRequestParameterException ex, HttpHeaders headers, HttpStatusCode status, WebRequest request)
Dprotected ResponseEntity<Object> handleHttpMediaTypeNotSupported(HttpMediaTypeNotSupportedException ex, HttpHeaders headers, HttpStatusCode status, WebRequest request)
Step-by-Step Solution
Solution:

  1. Step 1: Identify the exception type for unsupported media type

    The exception thrown when a client sends an unsupported media type is HttpMediaTypeNotSupportedException.

  2. Step 2: Find the corresponding handler method in ResponseEntityExceptionHandler

    The method to override is handleHttpMediaTypeNotSupported with the signature:
    protected ResponseEntity handleHttpMediaTypeNotSupported(HttpMediaTypeNotSupportedException ex, HttpHeaders headers, HttpStatusCode status, WebRequest request).

  3. Final Answer:

    protected ResponseEntity handleHttpMediaTypeNotSupported(HttpMediaTypeNotSupportedException ex, HttpHeaders headers, HttpStatusCode status, WebRequest request) correctly overrides the method to handle unsupported media type exceptions.

  4. Quick Check:

    Exception type matches method name and parameters [OK]
    5. Quick Trick: Unsupported media type uses handleHttpMediaTypeNotSupported [OK]
    Common Mistakes:
    • Confusing method for unsupported HTTP method instead of media type
    • Using wrong exception class in method signature
    • Overriding methods unrelated to media type errors

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