code: private String get(String... values) {
              if (values != null) {
                  for (String value : values) {
                      if (!StringUtils.isEmpty(value)) {
                          return value;
                      }
                  }
              }
              return null;
          }
docs: Return first non-null/non-empty value.
  
  @param values The list of possible values.
  @return The first non-null/non-empty value, or null if there are none.