You worked with them “all the time”, whenever you know it or not! Classloaders are the little workers that make sure all the code is there and ready to be executed. Bob revisits this topics and goes into more detail on how the ClassLoading hierarchy works, when to watch out, and how different frameworks (OSGI, and Java EE containers) may be configured to load classes. If you have run into “ClassNotFound” exceptions, this can help you explain why!

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• Classloader definition
• The Basics of ClassLoaders
• Understanding the Tomcat ClassPath

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Ok, so now is allergy season, and I heard beer with honey is good for you. Or better yet, beer made of honey (Mead!)