4.0.0 external-calendaring-service org.sakaiproject.calendaring 20.3 External Calendaring Service :: API org.sakaiproject.calendaring external-calendaring-service-api jar shared org.sakaiproject.kernel sakai-kernel-api org.sakaiproject.kernel sakai-component-manager org.sakaiproject.calendar sakai-calendar-api commons-codec commons-codec commons-lang commons-lang org.mnode.ical4j ical4j backport-util-concurrent backport-util-concurrent