Blog of Vincent VAUBAN

🤖⚖️ “The AI coded that MILLION-DOLLAR BUG!”: WRONG answer → you GO to JAIL! 😆

October 17, 2026 · AI

🔸 TLDR Imagine this: 👨‍💻 “It wasn’t me! The AI coded that million-dollar bug!” ⚖️ “Who...

☕⚡ Why is the FIRST API CALL so SLOW? COLD START & WARM-UP costs

October 17, 2026

🔸 TLDR Your first HTTP request may pay costs that subsequent requests simply reuse. DNS...

☕⏱️ In JAVA DateTime, is the YOUNGEST the MAX or the MIN?

October 17, 2026 · java

🔸 TLDR For dates representing birthdays: ▪️ min() → oldest person 👴 ▪️ max() → youngest person...

☕🔐 How to ENCRYPT and DECRYPT DATA with HIBERNATE

October 17, 2026 · jakartaee

🔸 TLDR Hibernate's @ColumnTransformer can transform a column automatically when reading and...

☕♠️ Want to become an ORACLE ACE? Start with ACE APPRENTICE

October 17, 2026

🔸 TLDR I became an Oracle ACE Associate this year, and if becoming an ACE is one of your goals,...

☕🧠 JAVA 27 can CUT your HEAP by 10–20% ; by DEFAULT

October 17, 2026 · java

🔸 TLDR With JEP 534: Compact Object Headers by Default, Java 27 enables Compact Object Headers...

☕🚀 JAVA 27 launches TODAY: here’s what matters

October 17, 2026 · java

📺Live: https://www.youtube.com/watch?v=4V2jooUo8O0 🔸 TLDR Java 27 launches today,...

Java 27 goes GA tomorrow! 🚀

October 17, 2026 · java

Java 27 goes GA tomorrow! 🚀 📺https://dev.java/community/java-27-launch/ Join the Java...

☕🔖 Do you use INTELLIJ BOOKMARKS?

October 17, 2026 · intelliJ

🔸 TLDR A breakpoint says: ▪️ "STOP execution here." 🛑 A bookmark says: ▪️ "I want to...

📊[POLL] Is the TRUTH still in the CODE in SPEC-DRIVEN development?

October 17, 2026 · poll

Uncle Bob famously wrote: “Truth can only be found in one place: the code.” -- Robert C. Martin...

☕🤖 JAVA’S AGE is its AI SUPERPOWER

September 26, 2026 · AI

🔸 TL;DR Java Champion Markus Eisele argues that Java’s history, strictness, specs, tooling and...

☕➿ JAVA CERTIFICATION LOOP: can you find the OUTPUT in 20 seconds?

September 26, 2026 · java

🔸 TLDR You have 20 seconds. ⏱️ What does this Java code print? No IDE. No debugger. No...

☕🔮 If you’re only learning what’s stable in Java TODAY, you may already be LATE.

September 26, 2026 · java

The next wave of Java is often visible before it becomes mainstream. That’s exactly why my...

☕🐢 PERFORMANCE PITFALLS in JPA and Friends

September 26, 2026 · jakartaee

🔸 TLDR JPA abstracts a lot of database complexity. That convenience can also hide expensive...

☕🧠 Does JAVA use TOO MUCH MEMORY?

September 26, 2026 · java

🔸 TLDR Ron Pressler's JavaOne 2026 argument flips the usual criticism of Java memory use: ...

☕🍃 SEQUENTIAL MICROSERVICES can quietly KILL your AVAILABILITY

September 26, 2026 · spring

🔸 TLDR If one request requires Inventory → Payment → Transport to ALL succeed, your...

☕💰 The 1 MILLION question: what is that ~ SYMBOL in JAVA?

September 26, 2026 · java

🔸 TLDR ~ is Java's bitwise complement operator. It flips every bit: ▪️ 0 becomes 1 ▪️ 1...

☕🤖 Trisha Gee on AI, SKILL ATROPHY & the SOFTWARE JOB MARKET

September 26, 2026 · AI

🔸 TLDR On Rock the JVM, Trisha Gee explores AI, Stack Overflow, burnout, mentoring, junior...

🍃☕ SPRING MODULITH 2.2 M1: modular monoliths move to BOOT 4.2

September 26, 2026 · spring

🔸 TLDR Spring Modulith helps turn a Spring Boot monolith into explicit, domain-driven modules...

🎬🔁 Git RERERE: escape CHAINED PR INCEPTION

September 26, 2026 · devops

🔸 TLDR git rerere = reuse recorded resolution. Git remembers how you solved a conflict and...

All Categories - Blog of Vincent VAUBAN

🤖⚖️ “The AI coded that MILLION-DOLLAR BUG!”: WRONG answer → you GO to JAIL! 😆

☕⚡ Why is the FIRST API CALL so SLOW? COLD START & WARM-UP costs

☕⏱️ In JAVA DateTime, is the YOUNGEST the MAX or the MIN?

☕🔐 How to ENCRYPT and DECRYPT DATA with HIBERNATE

☕♠️ Want to become an ORACLE ACE? Start with ACE APPRENTICE

☕🧠 JAVA 27 can CUT your HEAP by 10–20% ; by DEFAULT

☕🚀 JAVA 27 launches TODAY: here’s what matters

Java 27 goes GA tomorrow! 🚀

☕🔖 Do you use INTELLIJ BOOKMARKS?

📊[POLL] Is the TRUTH still in the CODE in SPEC-DRIVEN development?

☕🤖 JAVA’S AGE is its AI SUPERPOWER

☕➿ JAVA CERTIFICATION LOOP: can you find the OUTPUT in 20 seconds?

☕🔮 If you’re only learning what’s stable in Java TODAY, you may already be LATE.

☕🐢 PERFORMANCE PITFALLS in JPA and Friends

☕🧠 Does JAVA use TOO MUCH MEMORY?

☕🍃 SEQUENTIAL MICROSERVICES can quietly KILL your AVAILABILITY

☕💰 The 1 MILLION question: what is that ~ SYMBOL in JAVA?

☕🤖 Trisha Gee on AI, SKILL ATROPHY & the SOFTWARE JOB MARKET

🍃☕ SPRING MODULITH 2.2 M1: modular monoliths move to BOOT 4.2

🎬🔁 Git RERERE: escape CHAINED PR INCEPTION

☕🍃🔍

🤖⚖️ “The AI coded that MILLION-DOLLAR BUG!”: WRONG answer → you GO to JAIL! 😆

☕⚡ Why is the FIRST API CALL so SLOW? COLD START & WARM-UP costs

☕⏱️ In JAVA DateTime, is the YOUNGEST the MAX or the MIN?