Classloader Hierarchy

JVM Classloading

Java Byte-Code When you compile java-code (.java files and resources), the compiler will generate so-called byte-code (.class files, or packaged .jar files). This byte-code can’t be executed by the local operating system, but only by the Java Runtime Environment (JRE). The JRE is the environment where a Java Virtual Machine (JVM) runs. The benefits...

Servlet Flow

What is a Servlet?

Introduction Java uses so-called Servlets as the component that handles a request from a user (or other systems) and generates a response based on the request. Although with frameworks like Spring MVC you might not deal with Servlets directly. However, it is useful to understand the underlying principles of a Servlet, as you will come...

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