Core Java
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Serverless Java: When it Helps, When it Hurts, and How to Overcome the Limits
Java and serverless computing seem like an odd couple. Java’s enterprise heritage clashes with serverless’s demand for quick starts and…
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Global Test Initialization in JUnit 5
In testing frameworks, it is often necessary to perform some setup tasks before any test in the project is executed.…
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Testing Micrometer Metrics in Spring Boot Applications
Micrometer is a metrics collection library that provides a vendor-neutral API for instrumenting applications. In a Spring Boot environment, it…
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The Power of Java Stream API
Java 8 introduced the Stream API, and it fundamentally changed how we work with collections. Instead of writing verbose loops…
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Event-Driven Architecture in Monoliths: Incremental Refactoring for Java Apps
The conventional wisdom suggests event-driven architecture belongs in microservices architectures, where services communicate asynchronously through message brokers. But some of…
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Hexagonal / Onion Architecture in a Real Java Codebase: Migration Strategies
Refactoring a legacy Java application to use Hexagonal Architecture—also known as Ports and Adapters or Onion Architecture—sounds appealing in theory.…
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IntelliJ IDEA vs Eclipse: What Sets Them Apart?
Integrated Development Environments (IDEs) shape developer workflows. IntelliJ IDEA (by JetBrains) and Eclipse (open-source foundation-driven) are long-standing choices for Java…
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Digital Twins with Eclipse Ditto: Modeling Physical Assets for Predictive Maintenance
Manufacturing floors, wind farms, and smart buildings share a common challenge: keeping physical assets running smoothly before they break down.…
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Save the Day (and Memory): Java Caching Strategies Using Caffeine and Redis
Caching is one of those things that sounds simple until you actually need it. Then suddenly you’re drowning in cache…
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