This inheritance list is sorted roughly, but not completely, alphabetically:

[detail level 12]

Ccom.sun.star.lib.loader.Loader	This class can be used as a loader for application classes which use UNO
▼CThread
Ccom.sun.star.lib.loader.InstallationFinder.StreamGobbler	This class is used for emptying any stream which is passed into it in a separate thread
Ccom.sun.star.lib.loader.Loader.Drain
▼CURLClassLoader
Ccom.sun.star.lib.loader.Loader.CustomURLClassLoader	A customized class loader which is used to load classes and resources from a search path of user-defined URLs