Blog of Vincent VAUBAN

⚡🏆 JAVA CHAMPION CONF — DAY 3 RECAP (AI, ARCHI & MODERNIZATION 🔥)

February 8, 2026 · java-champion

⏭️Swipe the carousel below👇 Here’s my quick summary of today’s talks 👇 🤖 Architecture drift in...

☕🎓 JAVA 21 OCP — TEST YOURSELF (3 QUESTIONS IN THE CAROUSEL) 🚀 episod18

February 8, 2026 · java,java21,ocp,slides,certification

🔸 WHY JAVA CERTIFICATION IS A GREAT ASSET TODAY ▪️ Signals up-to-date skills (Java 21:...

🧹🧭 THE BOY SCOUT RULE FOR CLEANER CODE (UNCLE BOB)

February 8, 2026 · cleancode,programmer,techlead

"Check the code IN cleaner than you checked it OUT - every single time." 🔸 TLDR ▪️ Make...

What’s your take on DDD (Domain-Driven Design)? MUST_HAVE/ PRICEY/ OVERKILL/ DEPENDS

February 8, 2026 · techlead,programmer,ddd

DDD gets people very polarized—so I’m curious where you land. Here’s what each option...

☕Java: to which programnming language generation does it belong?

February 8, 2026 · programmer

⏭️Swipe the carousel👇 💻🧠 Programming language generations (1GL → 5GL) 🔸 Context (for new...

⚡☕ JAVA CHAMPION CONF — DAY 2 RECAP (SO MANY 🔥 TAKEAWAYS)

February 8, 2026 · java-champion,java

⏭️Swipe the carousel👇 Here’s my quick summary of today’s talks 👇 🤖 Testing AI chatbots...

🔗☕ WEB3J: BRING ETHEREUM (EVM) INTO YOUR JAVA APPS

February 8, 2026 · java,jroadmap,blockchain

⏭️Swipe the carousel at the bottom👇 🔸 TL;DR Web3j is a Java/Android library that lets you...

🛜🪝 USEONLINESTATUS HOOK (REACT): DETECT ONLINE/OFFLINE (BROWSER EVENTS)

January 24, 2026 · react,programmer

🔸 TL;DR ▪️ A small React hook to track online/offline status in real time 🛜 ▪️ Great for...

🚀🎤 JAVA CHAMPION CONF — DAY 1 RECAP (Talks that hit hard!)

January 24, 2026 · java-champion,java,slides

⏭️Swipe the carousel below👇 Here’s my quick summary of the key sessions I followed today 👇 ...

🧩🧾 JSON-P & JSON-B: READ/WRITE JSON IN JAVA

January 24, 2026 · jakartaee

🔸 TL;DR 🧠 ▪️ JSON-P Model API = build/parse JSON trees 🌳 ▪️ JSON-P Streaming API = process...

🗺️⚡ HIBERNATE @ENTITYGRAPH: FETCH WHAT YOU NEED (WITHOUT N+1 SURPRISES)

January 24, 2026 · java,db,programmer,techlead

🔸TL;DR ▪️ @EntityGraph lets you override fetch strategy per query (fetch joins… but cleaner) ✅...

🍃🎓 SPRING CERTIFICATION — TEST YOURSELF (3 QUESTIONS IN THE CAROUSEL) 🚀 episod17

January 24, 2026 · springboot,spring,slides,certification

🔸 WHY SPRING CERTIFICATION IS A GREAT ASSET TODAY ▪️ Validates real-world, production-ready...

🤖🧰 SPRING AI AGENTIC PATTERNS (PART 1): AGENT SKILLS

January 24, 2026 · springboot,java,AI

🔶 TL;DR Skills = reusable “capability packs” your agent loads on demand → less prompt bloat,...

🧭🧩 STRATEGIC DDD: ALIGN BUSINESS + SOFTWARE (WITHOUT OVERCOMPLICATING IT)

January 24, 2026 · ddd,techlead,programmer,architecture

🔸 TL;DR Strategic DDD helps you focus on what matters, define clear boundaries, and design...

🧩☕ WEB PROFILE QUIZ: WHICH JAVA EE COMPONENT WON’T WORK?

January 24, 2026 · jakartaee

🔸 TL;DR Web Profile = EJB Lite ✅ EJB Lite ≠ MDB ❌ So: No MDBs on Web Profile-only...

☕🎓 JAVA 21 OCP — TEST YOURSELF (3 QUESTIONS IN THE CAROUSEL) 🚀 episod17

January 24, 2026 · java,java21,certification,ocp,slides

🔸 WHY JAVA CERTIFICATION IS A GREAT ASSET TODAY ▪️ Signals up-to-date skills (Java 21: virtual...

🚀🤝 INSPIRE PEAK PERFORMANCE FOR PROJECT SUCCESS

January 24, 2026 · quote,team,programmer

🔸 TL;DR ▪️ Your job isn’t to “push harder”. It’s to create the conditions where people do their...

📊POLL: Are you attending jChampions Conference? YES/ PARTLY/ NO/ WHAT

January 24, 2026 · java-champion,poll

📆 Jan 22, 23, 26, 27 — jChampions Conference (online, free) How to vote (what each option...

🧱⏳ LAZY CONSTANTS IN JAVA 26 (PREVIEW): LAZY INIT, FINAL-LIKE PERFORMANCE

January 24, 2026 · java26

✅ TLDR ▪️ LazyConstant = compute once, thread-safe, immutable-after-init ▪️ Keeps lazy...

🤖☕ LANGCHAIN4J: BUILD LLM FEATURES IN JAVA (FAST)

January 24, 2026 · java,AI,langchain4j

🔸 TL;DR LangChain4j is a Java library to ship LLM features faster (chat, RAG, agent-like flows...

All Categories - Blog of Vincent VAUBAN

⚡🏆 JAVA CHAMPION CONF — DAY 3 RECAP (AI, ARCHI & MODERNIZATION 🔥)

☕🎓 JAVA 21 OCP — TEST YOURSELF (3 QUESTIONS IN THE CAROUSEL) 🚀 episod18

🧹🧭 THE BOY SCOUT RULE FOR CLEANER CODE (UNCLE BOB)

What’s your take on DDD (Domain-Driven Design)? MUST_HAVE/ PRICEY/ OVERKILL/ DEPENDS

☕Java: to which programnming language generation does it belong?

⚡☕ JAVA CHAMPION CONF — DAY 2 RECAP (SO MANY 🔥 TAKEAWAYS)

🔗☕ WEB3J: BRING ETHEREUM (EVM) INTO YOUR JAVA APPS

🛜🪝 USEONLINESTATUS HOOK (REACT): DETECT ONLINE/OFFLINE (BROWSER EVENTS)

🚀🎤 JAVA CHAMPION CONF — DAY 1 RECAP (Talks that hit hard!)

🧩🧾 JSON-P & JSON-B: READ/WRITE JSON IN JAVA

🗺️⚡ HIBERNATE @ENTITYGRAPH: FETCH WHAT YOU NEED (WITHOUT N+1 SURPRISES)

🍃🎓 SPRING CERTIFICATION — TEST YOURSELF (3 QUESTIONS IN THE CAROUSEL) 🚀 episod17

🤖🧰 SPRING AI AGENTIC PATTERNS (PART 1): AGENT SKILLS

🧭🧩 STRATEGIC DDD: ALIGN BUSINESS + SOFTWARE (WITHOUT OVERCOMPLICATING IT)

🧩☕ WEB PROFILE QUIZ: WHICH JAVA EE COMPONENT WON’T WORK?

☕🎓 JAVA 21 OCP — TEST YOURSELF (3 QUESTIONS IN THE CAROUSEL) 🚀 episod17

🚀🤝 INSPIRE PEAK PERFORMANCE FOR PROJECT SUCCESS

📊POLL: Are you attending jChampions Conference? YES/ PARTLY/ NO/ WHAT

🧱⏳ LAZY CONSTANTS IN JAVA 26 (PREVIEW): LAZY INIT, FINAL-LIKE PERFORMANCE

🤖☕ LANGCHAIN4J: BUILD LLM FEATURES IN JAVA (FAST)

☕🍃🔍

⚡🏆 JAVA CHAMPION CONF — DAY 3 RECAP (AI, ARCHI & MODERNIZATION 🔥)

☕🎓 JAVA 21 OCP — TEST YOURSELF (3 QUESTIONS IN THE CAROUSEL) 🚀 episod18

🧹🧭 THE BOY SCOUT RULE FOR CLEANER CODE (UNCLE BOB)