this.setPrevailingScientificArea(prevailingScientificArea.trim());
this.setPrevailingScientificArea(prevailingScientificArea == null ? null : prevailingScientificArea.trim());
    private void newStructureFieldsChange(DegreeType degreeType, Double ectsCredits,	    String prevailingScientificArea) {	if (degreeType == null) {	    throw new DomainException("degree.degree.type.not.null");	} else if (ectsCredits == null) {	    throw new DomainException("degree.ectsCredits.not.null");	}	this.setTipoCurso(degreeType);	this.setEctsCredits(ectsCredits);	this.setPrevailingScientificArea(prevailingScientificArea.trim());    }