[Solved] How do you correctly annotate a method to handle NullPointerException in a Spring Boot controller? — Ans: @ExceptionHandler(NullPointerException.class) | Spring Boot

Spring Boot - Exception Handling

How do you correctly annotate a method to handle NullPointerException in a Spring Boot controller?

A@HandleException(NullPointerException.class)

B@ExceptionHandler(NullPointerException.class)

C@ExceptionHandler("NullPointerException")

D@Exception(NullPointerException.class)

Step-by-Step Solution

Solution:

Step 1: Identify correct annotation
The correct annotation is @ExceptionHandler with the exception class as parameter.
Step 2: Check syntax
The parameter must be the class type, not a string or other annotation.
Final Answer:
@ExceptionHandler(NullPointerException.class) -> Option B
Quick Check:
Use @ExceptionHandler with exception class [OK]

Quick Trick: Use @ExceptionHandler with exception class type [OK]

Common Mistakes:

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