return null; }
    public Group findFinalDegreeWorkGroupForCurrentExecutionYear() {	for (final GroupStudent groupStudent : getAssociatedGroupStudents()) {	    final Group group = groupStudent.getFinalDegreeDegreeWorkGroup();	    final ExecutionDegree executionDegree = group.getExecutionDegree();	    final ExecutionYear executionYear = executionDegree.getExecutionYear().getNextExecutionYear();	    if (executionYear.getState().equals(PeriodState.CURRENT)) {		return group;	    }	}	return null;    }