Made utility classes final to explicitly forbid it's inheritance

Mage/src/main/java/mage/actions/score/ScoringConstants.java

@@ -5,7 +5,7 @@ package mage.actions.score;
  *
  * @author ayratn
  */
-public class ScoringConstants {
+public final class ScoringConstants {
     public static final int WIN_GAME_SCORE = 100000000;
     public static final int LOSE_GAME_SCORE = -WIN_GAME_SCORE;
 

Mage/src/main/java/mage/cards/decks/importer/DeckImporterUtil.java

@@ -33,7 +33,7 @@ import mage.cards.decks.DeckCardLists;
  *
  * @author North
  */
-public class DeckImporterUtil {
+public final class DeckImporterUtil {
 
     public static DeckImporter getDeckImporter(String file) {
         if (file.toLowerCase().endsWith("dec")) {

Mage/src/main/java/mage/cards/repository/CardScanner.java

@@ -36,7 +36,7 @@ import org.apache.log4j.Logger;
  *
  * @author North
  */
-public class CardScanner {
+public final class CardScanner {
 
     public static boolean scanned = false;
 

Mage/src/main/java/mage/cards/repository/PluginClassloaderRegistery.java

@@ -36,7 +36,7 @@ import java.util.List;
  *
  * @author Lymia
  */
-public class PluginClassloaderRegistery {
+public final class PluginClassloaderRegistery {
     static List<ClassLoader> pluginClassloaders = new ArrayList<>();
 
     public static void registerPluginClassloader(ClassLoader cl) {

Mage/src/main/java/mage/cards/repository/RepositoryUtil.java

@@ -14,7 +14,7 @@ import java.util.List;
  *
  * @author North
  */
-public class RepositoryUtil {
+public final class RepositoryUtil {
 
     public static boolean isDatabaseObsolete(ConnectionSource connectionSource, String entityName, long version) throws SQLException {
         TableUtils.createTableIfNotExists(connectionSource, DatabaseVersion.class);

Mage/src/main/java/mage/filter/StaticFilters.java

@@ -21,7 +21,7 @@ import mage.filter.predicate.mageobject.CardTypePredicate;
  *
  * @author LevelX2
  */
-public class StaticFilters {
+public final class StaticFilters {
 
     public static final FilterCreaturePermanent FILTER_ARTIFACT_CREATURE_PERMANENT = new FilterArtifactCreaturePermanent();
     public static final FilterPermanent FILTER_PERMANENT_ARTIFACT_OR_CREATURE = new FilterPermanent("artifact or creature");

Mage/src/main/java/mage/game/ZonesHandler.java

@@ -20,7 +20,7 @@ import mage.target.TargetCard;
 /**
  * Created by samuelsandeen on 9/6/16.
  */
-public class ZonesHandler {
+public final class ZonesHandler {
 
     public static boolean cast(ZoneChangeInfo info, Game game) {
         if (maybeRemoveFromSourceZone(info, game)) {

Mage/src/main/java/mage/util/CardUtil.java

@@ -59,7 +59,7 @@ import mage.util.functions.CopyTokenFunction;
 /**
  * @author nantuko
  */
-public class CardUtil {
+public final class CardUtil {
 
     private static final String regexBlack = ".*\\x7b.{0,2}B.{0,2}\\x7d.*";
     private static final String regexBlue = ".*\\x7b.{0,2}U.{0,2}\\x7d.*";

Mage/src/main/java/mage/util/ClassScanner.java

@@ -40,7 +40,7 @@ import java.util.jar.JarInputStream;
  *
  * @author North
  */
-public class ClassScanner {
+public final class ClassScanner {
 
     private static void checkClassForInclusion(List<Class> cards, Class type, String name, ClassLoader cl) {
         try {

Mage/src/main/java/mage/util/DateFormat.java

@@ -33,7 +33,7 @@ import java.util.Date;
  *
  * @author LevelX2
  */
-public class DateFormat {
+public final class DateFormat {
 
     /**
      * calculates the duration between two dates and returns a string in the format hhh:mm:ss

Mage/src/main/java/mage/util/DeckUtil.java

@@ -31,7 +31,7 @@ package mage.util;
  *
  * @author LevelX2
  */
-public class DeckUtil {
+public final class DeckUtil {
 
     public static long fixedHash(String string) {
         long h = 1125899906842597L; // prime

Mage/src/main/java/mage/util/GameLog.java

@@ -34,7 +34,7 @@ import mage.ObjectColor;
  *
  * @author LevelX2
  */
-public class GameLog {
+public final class GameLog {
 
     static final String LOG_COLOR_PLAYER = "#20B2AA"; // LightSeaGreen
     static final String LOG_COLOR_PLAYER_REQUEST = "#D2691E"; // Chocolate

Mage/src/main/java/mage/util/ManaUtil.java

@@ -28,7 +28,7 @@ import mage.game.Game;
 /**
  * @author noxx
  */
-public class ManaUtil {
+public final class ManaUtil {
 
     private ManaUtil() {
     }

Mage/src/main/java/mage/util/RandomUtil.java

@@ -6,7 +6,7 @@ import java.util.concurrent.ThreadLocalRandom;
 /**
  * Created by IGOUDT on 5-9-2016.
  */
-public class RandomUtil {
+public final class RandomUtil {
 
 
     public static Random getRandom() {return ThreadLocalRandom.current();}

Mage/src/main/java/mage/util/TournamentUtil.java

@@ -24,7 +24,7 @@ import mage.constants.Rarity;
  *
  * @author LevelX2
  */
-public class TournamentUtil {
+public final class TournamentUtil {
     
     /**
      * Tries to calculate the most appropiate sets to add basic lands for cards of a deck

Mage/src/main/java/mage/util/trace/TraceUtil.java

@@ -25,7 +25,7 @@ import mage.constants.CardType;
 /**
  * @author magenoxx_at_gmail.com
  */
-public class TraceUtil {
+public final class TraceUtil {
     
     private static final Logger log = Logger.getLogger(TraceUtil.class);