6ee53d27_The_Grails_Framework_2_0_2__Description
[Event] SetClasspath [Parameters] rootLoader [Description] 
Called during classpath initialization so plugins can augment the classpath with rootLoader.addURL(...). Note that this augments the classpath after event scripts are loaded so you cannot use this to load a class that your event script needs to import, although you can do this if you load the class by name.
The Grails Framework 2.0.2