Project Facets in Eclipse does not have Java Server Faces (JSF)

Event: Project Facets does not have Java Server Faces

Cause: Java plugin is not installed

I've been using only Pleiades All in One (https://mergedoc.osdn.jp/) recently, but after a long time using ordinary Eclipse (https://www.eclipse.org/), I don't know what the plug-in is. It was gone.

Action: Install Eclipse Enterprise Java Developer Tools

1. Display the dialog with [Help]> [Market place ...]
2. Search for "Java Developer Tools"
3. Display the dialog with the [Install] button of "Eclipse Enterprise Java Developer Tools"
4. Follow the dialog to install and restart Eclipse
5. Select the project in [Project Explorer] and right-click> [Properties] to display the dialog
6. [Project Facets]> [JavaServer Faces] is displayed!