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AJAquib Javedinaquibdev.hashnode.dev

Mastering Custom Validation Annotations in Spring Boot 3: Beyond @NotNull

Dec 20, 2025 · 4 min read · Standard Jakarta Bean Validation annotations often fail to capture complex, multi-field business rules. This guide explains how to implement the ConstraintValidator interface to create reusable, class-level custom annotations in Spring Boot.Anyone wh...

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MKMukul kumarinmuku.hashnode.dev

Java Annotations: Your Key to Cleaner and Safer Code

Sep 19, 2023 · 2 min read · Exploring Common Java Annotations In this blog post, we will delve into several essential Java annotations used for various purposes, including validation and code organization. @NotNull The @NotNull annotation is used to indicate that a field or par...

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