}
	private ExecutionDegree getSelectedExecutionDegree(final DynaActionForm form, final Registration registration,			final ExecutionPeriod executionPeriod, final List<ExecutionDegree> executionDegrees) {		final Integer executionDegreeIdChosen = (Integer) form.get("degree");		final ExecutionDegree executionDegreeChosen = rootDomainObject				.readExecutionDegreeByOID(executionDegreeIdChosen);		if (executionDegreeChosen != null				&& executionDegreeChosen.getExecutionYear() == executionPeriod.getExecutionYear()) {			return executionDegreeChosen;		} else {			return searchForExecutionDegreeInStudent(registration, executionPeriod);		}	}