InJavarevisitedbyThe Turtle Code·12h agoMaster Java: The Complete Roadmap to Modern Java, JVM Internals, Concurrency, and Production…Java is much more than a programming language with classes, interfaces, and collections. Modern Java includes functional programming…
InEngineering Under PressurebyInside Backend Engineering·16h ago15 Senior Java & Spring Boot Interview Questions That Separate Staff EngineersAdvanced Java 21, Spring Boot, JVM, PostgreSQL, Kafka, concurrency, and distributed systems interview questions with production-grade…
Backend Engineer·18h agoI Removed an Element From ArrayList. The Next Element Escaped.A Java developer wrote a loop to remove every occurrence of a particular number from an ArrayList.
InJavarevisitedbyDevrim Ozcay | Founder, ProdRescue·2d agoMaven vs Gradle: We Migrated 50 Spring Boot Projects. Here’s What Actually BrokeThree senior engineers, twelve weeks, and a migration that cost far more than anyone expected. The build tool was never the biggest…
InEngineering Under PressurebyBeyond Senior·3d agoI Asked a Senior Java Engineer Why Kubernetes Killed a JVM With 40% Free HeapHe knew garbage collectors, Spring Boot, and Java 21. Then I showed him a pod with no Java OutOfMemoryError, a healthy heap, and an exit…
InJavarevisitedbyIfeanyi Ogbuehi·3d agoJavaScript Fundamentals: From Variables to Real Interactive AppsJavaScript is what turns static websites into interactive experiences. In this guide, you’ll learn the core building blocks — variables…
Waris konate·4d agoJava 8 à Java 21 : ce qui a vraiment changé d’une version à l’autreLes fonctionnalités clés qui ont transformé le langage, ce qu’un développeur Java doit connaître pour comprendre du code écrit à…
InEngineering Under PressurebyBeyond Senior·4d agoOur Spring Boot Transactions Were Perfect. PostgreSQL Started Killing Them AnywayTwo money transfers, one innocent-looking @Transactional method, and a PostgreSQL deadlock that turned a busy afternoon into a production…
InEngineering Under PressurebyEngineering Unfiltered | Prodrescue By Devrim·4d agoOur Senior Java Engineer Doubled the Memory. Kubernetes Killed the App AnywaySpring Boot kept crashing with OOMKilled. The JVM heap looked healthy, garbage collection wasn’t struggling, and an $8,000 infrastructure…
InEngineering Under PressurebyEngineering Unfiltered | Prodrescue By Devrim·4d agoWe Doubled Our Spring Boot Connection Pool. Production Got Even SlowerThe PostgreSQL database was barely using its CPU. The APIs were timing out, customers couldn’t complete checkout, and the team’s first fix…
