notification-portlet-api/src/main/java/org/jasig/portlet/notice/NotificationEntry.java
@JsonIgnore
    public Map<String,List<String>> getAttributesMap() {
        Map<String,List<String>> rslt = new HashMap<>();
        for (NotificationAttribute a : attributes) {
            rslt.put(a.getName(), a.getValues());
        }
        return rslt;
    }
@JsonIgnore
    public Map<String,List<String>> getAttributesMap() {
        Map<String,List<String>> rslt = new HashMap<>();
        for (NotificationAttribute a : attributes) {
            rslt.put(a.getName(), a.getValues());
        }
        return rslt;
    }
Convenience method for obtaining the attributes in a more usable collection.