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Not every imperfect developer is a bad developer. We all learn, we all make mistakes. But some habits are not “junior mistakes.” They are codebase killers. 😬 Here are 10 red flags that may reveal a weak Java development style — with Java-flavored examples. 🔸 TL;DR ▪️ A bad Java...

🔸 WHY JAVA CERTIFICATION IS A GREAT ASSET TODAY ▪️ Signals up-to-date skills (Java 21: virtual threads, pattern matching, sequenced collections) ▪️ Credible proof for recruiters/clients—objective, verifiable, global ▪️ Structured path that closes knowledge gaps and boosts productivity ...

We all know that bug. A method looks safe. It returns null once in the wrong path. And the NullPointerException shows up far away from the real cause 😅 Spring Boot 4 does not magically add native nullability to the Java language. But the Spring Boot 4 release train makes nullability far more...