| BaseServletModuleDescriptor<T> | Acts as a base for other servlet type module descriptors to inherit. |
| ServletContextListenerModuleDescriptor | Provides a way for plugins to declare ServletContextListeners so they can be notified when the javax.servlet.ServletContext is created for the plugin. |
| ServletContextParamModuleDescriptor | Allows plugin developers to specify init parameters they would like added to the plugin local javax.servlet.ServletContext. |
| ServletFilterModuleDescriptor | A module descriptor that allows plugin developers to define servlet filters. |
| ServletModuleDescriptor | A module descriptor that allows plugin developers to define servlets. |