A practical guide to extending Keycloak 26 with Java 21 — building a custom authenticator, password policy provider and identity provider mapper, and keeping them working through version upgrades.

This comprehensive guide walks you through the installation and usage of Joda-Time in Java, highlighting key differences between Joda-Time and Java-Time, with practical examples and best practices.

Writing clean, structured, and readable unit tests is crucial for maintainability and serves as living documentation. This article explores best practices for writing nested unit tests in Java using JUnit 5, following the Given-When-Then pattern.

Learn how to simplify Java code using Lombok with step-by-step instructions, best practices, and examples.

Unit testing can be challenging, especially when it involves creating varied test data. In this article, we introduce PODAM (POJO Data Mocker), a powerful tool that simplifies test data generation for Java developers.