How to use

IssueSeverityEnum

in

ca.uhn.fhir.model.dstu2.valueset

@Override
public String toCodeString(IssueSeverityEnum theEnum) {
  return theEnum.getCode();
}

@Override
public String toSystemString(IssueSeverityEnum theEnum) {
  return theEnum.getSystem();
}

if (nextIssue.getSeverityElement().getValueAsEnum().ordinal() >= IssueSeverityEnum.ERROR.ordinal()) {
  System.out.println("We failed validation!");