Ronald Dehuysser’s Post

🚀 Java isn’t just surviving in 2026—it’s thriving. While people still talk about Java 8, the real action is in Java 21/25+. If you are still handling concurrency using traditional threads, you are missing out. Virtual Threads (Project Loom) have fundamentally changed how I approach backend engineering. Handling thousands of blocking I/O tasks? It’s now lightweight and readable. Here is what I’m focusing on to keep my skills sharp in 2026: 🔹 Virtual Threads: Handling concurrency without complexity. 🔹 Pattern Matching & Records: Cleaner, immutable data modeling. 🔹 Spring AI: Bridging enterprise Java with Generative AI. Modern Java is engineered for responsibility, performance, and scalability. #Java #ModernJava #SpringBoot #VirtualThreads #CloudNative #BackendEngineering #Java25

Is REST really enough for everything… or are we just used to it? I’ve been working with GraphQL lately and spent some time exploring it in detail — and it definitely changed how I think about APIs. So I put together a PDF with what I learned, practical insights, and a few things that made me pause and rethink. Sharing it here — curious to know what you think: Is GraphQL actually better, or just another hype? #GraphQL #APIs #BackendDevelopment #TechDiscussion #Java #RestAPI

Built a Java AI agent that fixes bugs and creates PRs right from Slack. The key part? It asks for approval before doing anything significant. Still a side project. But the full flow is working. 🐙 https://lnkd.in/g4tv86h9 #Java #SpringBoot #AIAgents

Java 21+ and AI: Virtual Threads or CompletableFuture? If you're integrating LLMs (OpenAI, Gemini, Claude) into your Java application, this decision matters. The rule is simple: → Need to make multiple parallel calls to an AI API? Virtual Threads. Sequential code, automatic scaling, no callback hell. → Need to compose a pipeline (classify → summarize → translate)? CompletableFuture. Chaining, fallback, fine-grained error control. The most common mistake? Using CompletableFuture for a simple call. Virtual Threads do the same with half the code. What's your approach? Drop it in the comments! #java #java21 #virtualthreads #ai #springai #microservices #backend #developer

Day 57 of #100DaysOfLeetCode Today’s problem focused on finding the minimum distance between a target element and a given index in an array. I solved it using a simple and efficient approach: Traversed the array once Checked for target occurrences Calculated distance using absolute difference Maintained the minimum value throughout Runtime: 0 ms (Beats 100%) Optimized space usage Key takeaway: Even straightforward iteration can lead to highly optimized solutions when combined with the right logic. #LeetCode #Java #DataStructures #Algorithms #100DaysOfCode #CodingJourney #ProblemSolving

⏰ Temporary Field: When instance variables only show up for certain operations, cluttering your class interface with null-initialized fields. Here's how Extract Class refactoring transforms your code: ✅ Move temporary fields into dedicated classes ✅ Eliminate null-initialized field clutter ✅ Create clearer class interfaces ✅ Make object state predictable at every stage 🎯 Key takeaway: Extract Class refactoring organizes temporary state into focused objects that only exist when they're needed. What's your experience with refactoring Temporary Fields? Share your favorite techniques in the comments. #CleanCode #Refactoring #Java #TemporaryField #DeveloperTips https://lnkd.in/gJQeWPJ9

🚀 Exciting Update: Solving the Latest Spring Boot Bugs with Scenario-Based AI Contexts! If you are building AI-driven applications in Java, managing runtime contexts effectively is crucial. I’ve just pushed a significant update to my open-source project: Scenario-Based Runtime Context for AI. In our latest update, I’ve added detailed descriptions and concrete evidence demonstrating how this framework successfully resolves some tricky bugs encountered in the latest Spring Boot releases. 🐛🔨 By utilizing a scenario-based approach, we can handle dynamic AI runtime contexts much more smoothly without clashing with Spring Boot's latest lifecycle or dependency injection changes. Curious to see how it works? Check out the updated repository and the new use cases here: 🔗 https://lnkd.in/gUnnVG5y I'd love to hear your thoughts! If you find it helpful, a ⭐️ on GitHub is always appreciated. Feedback and PRs are welcome! #SpringBoot #Java #AI #OpenSource #GitHub #SoftwareEngineering #DeveloperTools

Define once in OpenAPI. Generate DTOs, interfaces, and docs automatically. Less boilerplate. Fewer inconsistencies. Cleaner API development. #OpenAPI #Java #SpringBoot #RESTAPI #APIDesign #BackendDevelopment #SoftwareEngineering #CodeGeneration

How fast can developers unlock what's next in the GenAI era? Watch the full video on Youtube on official Handle of Publicis Sapient India. If you are marketer and you want something like this for your company or agency, We can make this happen. DM us or Contact us directly on bd.team@kaivalyadigitals.com

Day 70 - Next Greater Node Understanding how to find the next larger value for each node using stack optimization. Approach: • Convert linked list → array for easy indexing • Use a stack to track indices • Compare current value with stack top • Update results when a greater value is found Key Insight: Monotonic stack helps avoid unnecessary comparisons Time Complexity: O(n) Space Complexity: O(n) #Day70 #LeetCode #Java #CodingPractice #TechJourney #DSA #LinkedList