Checkstyle.
diff --git a/src/main/java/org/apache/commons/configuration2/DataConfiguration.java b/src/main/java/org/apache/commons/configuration2/DataConfiguration.java
index d1fde35..ab66c17 100644
--- a/src/main/java/org/apache/commons/configuration2/DataConfiguration.java
+++ b/src/main/java/org/apache/commons/configuration2/DataConfiguration.java
@@ -99,6 +99,12 @@
  */
 public class DataConfiguration extends AbstractConfiguration
 {
+    /** The key of the property storing the user defined date format. */
+    public static final String DATE_FORMAT_KEY = "org.apache.commons.configuration.format.date";
+
+    /** The default format for dates. */
+    public static final String DEFAULT_DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";
+
     /** Empty array constant. */
     private static final URL[] EMPTY_URL_ARRAY = new URL[0];
 
@@ -123,12 +129,6 @@
     /** Empty array constant. */
     private static final BigDecimal[] EMPTY_BIG_DECIMAL_ARRAY = new BigDecimal[0];
 
-    /** The key of the property storing the user defined date format. */
-    public static final String DATE_FORMAT_KEY = "org.apache.commons.configuration.format.date";
-
-    /** The default format for dates. */
-    public static final String DEFAULT_DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";
-
     /** Stores temporary date formats. */
     private static final ThreadLocal<String> TEMP_DATE_FORMAT = new ThreadLocal<>();