private static ExecutionDegree findExecutionDegreeByID( final ExecutionSemester executionSemester, final String executionDegreeId) { final ExecutionYear executionYear = executionSemester.getExecutionYear(); for (final ExecutionDegree executionDegree : executionYear.getExecutionDegreesSet()) { if (executionDegree.getExternalId().equals(executionDegreeId)) { return executionDegree; } } return null; }