# What happens when a JSF Facet is un-installed?

When a JSF Facet is un-installed, the JSF references in the Web Deployment descriptor (web.xml) are removed. Those references are:

- Faces Servlet URL Mappings
- Context Params for application configuration file
- Faces Servlet

No files, including faces-config.xml, are removed or deleted from the project.
Currently, all JSF Libraries added to the project will also remain. To remove manually:

- If libraries are deployed Project Properties -> J2EE Module Dependencies -> Deselect jars
- If libraries are not deployed Project Properties -> Build Path -> Order and Export Tab-> Deselect jars

JSF Facets
What happens when a JSF Facet is installed?