3rd argument is not used.

xxl-job-core/src/main/java/com/xxl/job/core/util/DateUtil.java

             Date date = getDateFormat(pattern).parse(dateString);
             return date;
         } catch (Exception e) {
-            logger.warn("parse date error, dateString = {}, pattern={}; errorMsg = ", dateString, pattern, e.getMessage());
+            logger.warn("parse date error, dateString = {}, pattern={}; errorMsg = {}", dateString, pattern, e.getMessage());
             return null;
         }
     }