* the team profile (Pre-condition: Must not be null)
*/
public void createTeamProfile(String courseId, String courseName, String teamName,
Text teamProfile) throws TeamProfileExistsException{
if (getTeamProfile(courseId, teamName) != null) {
throw new TeamProfileExistsException();
}
TeamProfile newTeamProfile = new TeamProfile(courseId, courseName, teamName, teamProfile);
try {
getPM().makePersistent(newTeamProfile);