You are looking at documentation for an older release. Not what you want? See the current release documentation.
The Calendar portlet shows the Calendar application with a lot of features provided to users.
Package
The Calendar portlet is packaged in the calendar.war file.
To see the portlet in the project, follow this link https://github.com/exoplatform/calendar/blob/master/calendar-webapp/src/main/webapp/WEB-INF/portlet.xml.