Set<Participant> invitees = new TreeSet<Participant>();
invitees.add(new Participant("zoe", "Zoe Doe", "zoe@saasovation.com"));
CalendarEntry calendarEntry1 =
calendar.scheduleCalendarEntry(
DomainRegistry.calendarIdentityService(),
"A Doctor Checkup",
"Family Practice Offices",
new Owner("jdoe", "John Doe", "jdoe@saasovation.com"),
this.daysFromNowOneHourTimeSpan(1),