This document discusses classloading in OSGi. It begins with an introduction to classloading in general, explaining what classloaders are and how the classloading process works. It then covers how classloading differs and is more complex in OSGi due to the modular and dynamic nature of OSGi applications. The document discusses key OSGi classloading concepts like dependency, visibility, and advanced classloading techniques. It also mentions some specifics of classloading in the Equinox OSGi implementation.