| Class | Description | 
|---|---|
| Cache | Cache is a component that captures the mark-up rendered by its children and caches this for future
 requests. | 
| ConditionalComment | ConditionalComment is an  UIComponentwhich renders a conditional comment. | 
| OutputLabel | OutputLabel is a component that extends the standard  HtmlOutputLabeland provides support for
 automatically setting its value as the label of the component identified by itsforattribute (if any). | 
| ResourceInclude | This component is used to catch the output from a JSP/Servlet resource and render it as output
 to the JSF writer. |