Guide to Objects.requireNonNull() in Java

Date: 2025-02-10

Java's Objects.requireNonNull() method, introduced in Java 7, offers a cleaner way to handle null values than manual checks. It throws a NullPointerException with an optional custom message if the provided object is null, preventing runtime errors. This improves code readability, maintainability, and consistency, reducing boilerplate and the risk of overlooking null checks. While highly beneficial, overuse should be avoided. Objects.requireNonNull() provides several overloaded versions to suit different needs and performance considerations.

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