Recently, I was involved in migrating a legacy WAR-based application from Spring Boot 3 to Spring Boot 4. The application was deployed on an external servlet container rather than using an embedded ...
127.0.0.1 identity 127.0.0.1 api.yas.local 127.0.0.1 pgadmin.yas.local 127.0.0.1 storefront 127.0.0.1 backoffice 127.0.0.1 loki 127.0.0.1 tempo 127.0.0.1 grafana 127 ...
java.lang.ClassCastException: class ch.qos.logback.classic.Level cannot be cast to class java.util.Iterator (ch.qos.logback.classic.Level is in unnamed module of loader 'app'; java.util.Iterator is in ...
If you say “JVM is just memory + GC” in an interview — you’re already losing points. Let’s break JVM down exactly the way interviewers evaluate your understanding 👇 🔹 1. ClassLoader Subsystem ...
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