Changed visibility to private on a field

dddsample/tracking/core/src/main/java/se/citerus/dddsample/tracking/core/domain/model/location/SampleLocations.java

   public static final Location NEWYORK = new Location(new UnLocode("USNYC"), "New York", EASTERN, US);
   public static final Location DALLAS = new Location(new UnLocode("USDAL"), "Dallas", CENTRAL, US);
 
-  public static final Map<UnLocode, Location> ALL = new HashMap<UnLocode, Location>();
+  private static final Map<UnLocode, Location> ALL = new HashMap<UnLocode, Location>();
 
   static {
     for (Field field : SampleLocations.class.getDeclaredFields()) {