The Classloading Graph: Why Your Spring Boot App’s Startup Time Is a Classloading Problem and Not a Bean Problem

Startup time is nearly always blamed on bean initialisation. The actual bottleneck is usually classloading — a graph traversal problem…

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JVM Architecture: JVM Class loader and Runtime Data Areas

Hello readers! In the previous article of JVM series, developers learned about the Java Virtual Machine (JVM) and it’s architecture.…

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JBoss AS 7 classloading explained

This is a sample chapter taken from JBoss AS 7 Configuration Deployment and Administration book edited by Francesco Marchioni who…

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java.lang.NoClassDefFoundError: How to resolve – Part 3

This article is part 3 of our NoClassDefFoundError troubleshooting series. As I mentioned in my first article, there are many possible…

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java.lang.NoClassDefFoundError: How to resolve – Part 2

This article is part 2 of our NoClassDefFoundError troubleshooting series. Take a look at part 1. It will focus and…

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java.lang.NoClassDefFoundError: How to resolve – Part 1

Exception in thread ‘main’ java.lang.NoClassDefFoundError is one of the common and difficult problems that you can face when developing Java…

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Understanding and Extending Java ClassLoader

The Java ClassLoader is one of the crucial but rarely used components of Java in Project Development. Personally I have…

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