- if (!StringUtils.isBlank(reference.getDatePublished().getFreeText())){
- shortCitation = shortCitation + " (" + reference.getDatePublished().getFreeText() + ")";
- }else if (!StringUtils.isBlank(reference.getYear()) ){
- shortCitation = shortCitation + " (" + reference.getYear() + ")";
+ if (reference.getDatePublished() != null) {
+ if (!StringUtils.isBlank(reference.getDatePublished().getFreeText())){
+ shortCitation = shortCitation + " (" + reference.getDatePublished().getFreeText() + ")";
+ }else if (!StringUtils.isBlank(reference.getYear()) ){
+ shortCitation = shortCitation + " (" + reference.getYear() + ")";
+ }