}
	public void addAttendsTo(final ExecutionCourse executionCourse) {		checkIfReachedAttendsLimit();		if (readAttendByExecutionCourse(executionCourse) == null) {			final Attends attends = new Attends(this, executionCourse);			findAndSetEnrollmentForAttend(getActiveStudentCurricularPlan(), executionCourse, attends);		}	}