Fixed some possible null pointer exceptions (found in server log). Market Festival, Kindred Summons, Profane Processions, New Blood, Kindred Charge , Bishop of Binding, Metzal Tower of Triumph, Chrome Mox

Mage.Sets/src/mage/cards/b/BishopOfBinding.java

@@ -132,10 +132,12 @@ class BishopOfBindingExiledCardsPowerCount implements DynamicValue {
     @Override
     public int calculate(Game game, Ability sourceAbility, Effect effect) {
         ExileZone exileZone = game.getExile().getExileZone(CardUtil.getExileZoneId(game, sourceAbility.getSourceId(), sourceAbility.getSourceObjectZoneChangeCounter()));
+        if (exileZone != null) {
             Card exiledCard = exileZone.getRandom(game);
             if (exiledCard != null) {
                 return exiledCard.getPower().getValue();
             }
+        }
         return 0;
     }
 

Mage.Sets/src/mage/cards/c/ChromeMox.java

@@ -182,7 +182,14 @@ class ChromeMoxManaEffect extends ManaEffect {
                         if (choice.getChoices().size() == 1) {
                             choice.setChoice(choice.getChoices().iterator().next());
                         } else {
-                            player.choose(outcome, choice, game);
+                            while (!player.choose(outcome, choice, game)) {
+                                if (!player.canRespond()) {
+                                    return false;
+                                }
+                            }
+                            if (choice.getChoice() == null) {
+                                return false;
+                            }
                         }
                         switch (choice.getChoice()) {
                             case "Black":

Mage.Sets/src/mage/cards/k/KindredCharge.java

@@ -34,10 +34,10 @@ import mage.abilities.common.delayed.AtTheBeginOfNextEndStepDelayedTriggeredAbil
 import mage.abilities.effects.Effect;
 import mage.abilities.effects.OneShotEffect;
 import mage.abilities.effects.common.ChooseCreatureTypeEffect;
+import mage.abilities.effects.common.CreateTokenCopyTargetEffect;
+import mage.abilities.effects.common.ExileTargetEffect;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
-import mage.abilities.effects.common.ExileTargetEffect;
-import mage.abilities.effects.common.CreateTokenCopyTargetEffect;
 import mage.constants.CardType;
 import mage.constants.Outcome;
 import mage.constants.SubType;
@@ -95,7 +95,11 @@ class KindredChargeEffect extends OneShotEffect {
         Player controller = game.getPlayer(source.getControllerId());
         MageObject sourceObject = game.getObject(source.getSourceId());
         if (controller != null && sourceObject != null) {
-            String creatureType = game.getState().getValue(sourceObject.getId() + "_type").toString();
+            Object object = game.getState().getValue(sourceObject.getId() + "_type");
+            if (object == null) {
+                return false;
+            }
+            String creatureType = object.toString();
             FilterControlledCreaturePermanent filter = new FilterControlledCreaturePermanent("creature you control of the chosen type");
             filter.add(new SubtypePredicate(SubType.byDescription(creatureType)));
             for (Permanent permanent : game.getBattlefield().getAllActivePermanents(filter, controller.getId(), game)) {

Mage.Sets/src/mage/cards/k/KindredSummons.java

@@ -34,9 +34,9 @@ import mage.MageObject;
 import mage.abilities.Ability;
 import mage.abilities.effects.OneShotEffect;
 import mage.abilities.effects.common.ChooseCreatureTypeEffect;
+import mage.cards.Card;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
-import mage.cards.Card;
 import mage.cards.Cards;
 import mage.cards.CardsImpl;
 import mage.constants.CardType;
@@ -48,6 +48,7 @@ import mage.filter.common.FilterCreatureCard;
 import mage.filter.predicate.mageobject.SubtypePredicate;
 import mage.game.Game;
 import mage.players.Player;
+
 /**
  *
  * @author Saga
@@ -55,7 +56,7 @@ import mage.players.Player;
 public class KindredSummons extends CardImpl {
 
     public KindredSummons(UUID ownerId, CardSetInfo setInfo) {
-        super(ownerId,setInfo,new CardType[]{CardType.INSTANT},"{5}{G}{G}");
+        super(ownerId, setInfo, new CardType[]{CardType.INSTANT}, "{5}{G}{G}");
 
         // Choose a creature type. Reveal cards from the top of your library until you reveal X creature cards of the chosen type,
         // where X is the number of creatures you control of that type. Put those cards onto the battlefield,
@@ -78,8 +79,8 @@ class KindredSummonsEffect extends OneShotEffect {
 
     public KindredSummonsEffect() {
         super(Outcome.PutCreatureInPlay);
-        this.staticText = "Reveal cards from the top of your library until you reveal X creature cards of the chosen type, " +
+        this.staticText = "Reveal cards from the top of your library until you reveal X creature cards of the chosen type, "
-                "where X is the number of creatures you control of that type. Put those cards onto the battlefield, "
+                + "where X is the number of creatures you control of that type. Put those cards onto the battlefield, "
                 + "then shuffle the rest of the revealed cards into your library";
     }
 
@@ -97,7 +98,11 @@ class KindredSummonsEffect extends OneShotEffect {
         Player controller = game.getPlayer(source.getControllerId());
         MageObject sourceObject = source.getSourceObject(game);
         if (controller != null && sourceObject != null) {
-            String creatureType = game.getState().getValue(sourceObject.getId() + "_type").toString();
+            Object object = game.getState().getValue(sourceObject.getId() + "_type");
+            if (object == null) {
+                return false;
+            }
+            String creatureType = object.toString();
             FilterControlledCreaturePermanent filterPermanent = new FilterControlledCreaturePermanent("creature you control of the chosen type");
             filterPermanent.add(new SubtypePredicate(SubType.byDescription(creatureType)));
             int numberOfCards = game.getBattlefield().countAll(filterPermanent, source.getControllerId(), game);

Mage.Sets/src/mage/cards/m/MarketFestival.java

@@ -39,8 +39,8 @@ import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
 import mage.choices.ChoiceColor;
 import mage.constants.CardType;
-import mage.constants.SubType;
 import mage.constants.Outcome;
+import mage.constants.SubType;
 import mage.constants.Zone;
 import mage.game.Game;
 import mage.game.events.GameEvent;
@@ -57,10 +57,9 @@ import mage.target.common.TargetLandPermanent;
 public class MarketFestival extends CardImpl {
 
     public MarketFestival(UUID ownerId, CardSetInfo setInfo) {
-        super(ownerId,setInfo,new CardType[]{CardType.ENCHANTMENT},"{3}{G}");
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{3}{G}");
         this.subtype.add(SubType.AURA);
 
-
         // Enchant land
         TargetPermanent auraTarget = new TargetLandPermanent();
         this.getSpellAbility().addTarget(auraTarget);
@@ -108,14 +107,12 @@ class MarketFestivalTriggeredAbility extends TriggeredManaAbility {
         return enchantment != null && event.getSourceId().equals(enchantment.getAttachedTo());
     }
 
-
     @Override
     public String getRule() {
         return "Whenever enchanted land is tapped for mana, its controller adds two mana in any combination of colors to his or her mana pool <i>(in addition to the mana the land produces)</i>.";
     }
 }
 
-
 class MarketFestivalManaEffect extends ManaEffect {
 
     public MarketFestivalManaEffect() {
@@ -152,7 +149,9 @@ class MarketFestivalManaEffect extends ManaEffect {
                         return false;
                     }
                 }
-
+                if (choiceColor.getChoice() == null) { // Possible after reconnect?
+                    return false;
+                }
                 choiceColor.increaseMana(mana);
             }
             checkToFirePossibleEvents(mana, game, source);

Mage.Sets/src/mage/cards/m/MetzaliTowerOfTriumph.java

@@ -126,10 +126,12 @@ class MetzaliTowerOfTriumphEffect extends OneShotEffect {
                     available.add(permanent);
                 }
             }
+            if (!available.isEmpty()) {
                 Permanent permanent = available.get(RandomUtil.nextInt(available.size()));
                 if (permanent != null) {
                     permanent.destroy(source.getSourceId(), game, false);
                 }
+            }
             return true;
         }
         return false;

Mage.Sets/src/mage/cards/n/NewBlood.java

@@ -27,6 +27,7 @@
  */
 package mage.cards.n;
 
+import java.util.UUID;
 import mage.MageObject;
 import mage.abilities.Ability;
 import mage.abilities.Mode;
@@ -52,10 +53,6 @@ import mage.target.common.TargetControlledCreaturePermanent;
 import mage.target.common.TargetCreaturePermanent;
 import mage.target.targetpointer.FixedTarget;
 
-import java.util.LinkedHashSet;
-import java.util.UUID;
-import java.util.stream.Collectors;
-
 /**
  *
  * @author LevelX2
@@ -124,7 +121,7 @@ class NewBloodEffect extends OneShotEffect {
 class ChangeCreatureTypeTargetEffect extends ContinuousEffectImpl {
 
     private SubType fromSubType;
-    private SubType toSubType;
+    private final SubType toSubType;
 
     public ChangeCreatureTypeTargetEffect(SubType fromSubType, SubType toSubType, Duration duration) {
         super(duration, Layer.TextChangingEffects_3, SubLayer.NA, Outcome.Benefit);
@@ -153,6 +150,7 @@ class ChangeCreatureTypeTargetEffect extends ContinuousEffectImpl {
                 }
             }
             if (typeChoice.getChoice() == null) {
+                discard();
                 return;
             }
             fromSubType = SubType.byDescription(typeChoice.getChoice());

Mage.Sets/src/mage/cards/p/ProfaneProcession.java

@@ -105,7 +105,7 @@ class ProfaneProcessionEffect extends OneShotEffect {
             new ExileTargetEffect(exileId, sourceObject.getIdName()).setTargetPointer(targetPointer).apply(game, source);
             game.applyEffects();
             ExileZone exileZone = game.getExile().getExileZone(exileId);
-            if (exileZone.size() > 2) {
+            if (exileZone != null && exileZone.size() > 2) {
                 new TransformSourceEffect(true).apply(game, source);
             }
             return true;

Mage/src/main/java/mage/abilities/common/CreatureEntersBattlefieldTriggeredAbility.java

@@ -27,11 +27,12 @@
  */
 package mage.abilities.common;
 
-import mage.constants.Zone;
 import mage.abilities.TriggeredAbilityImpl;
 import mage.abilities.effects.Effect;
+import mage.constants.Zone;
 import mage.filter.common.FilterCreaturePermanent;
 import mage.game.Game;
+import mage.game.events.EntersTheBattlefieldEvent;
 import mage.game.events.GameEvent;
 import mage.game.events.GameEvent.EventType;
 import mage.game.permanent.Permanent;
@@ -104,7 +105,6 @@ public class CreatureEntersBattlefieldTriggeredAbility extends TriggeredAbilityI
         }
     }
 
-
     public CreatureEntersBattlefieldTriggeredAbility(CreatureEntersBattlefieldTriggeredAbility ability) {
         super(ability);
         this.opponentController = ability.opponentController;
@@ -118,7 +118,7 @@ public class CreatureEntersBattlefieldTriggeredAbility extends TriggeredAbilityI
 
     @Override
     public boolean checkTrigger(GameEvent event, Game game) {
-        Permanent permanent = game.getPermanent(event.getTargetId());
+        Permanent permanent = ((EntersTheBattlefieldEvent) event).getTarget();
         if (filter.match(permanent, sourceId, controllerId, game)
                 && (permanent.getControllerId().equals(this.controllerId) ^ opponentController)) {
             if (!this.getTargets().isEmpty()) {
@@ -137,7 +137,7 @@ public class CreatureEntersBattlefieldTriggeredAbility extends TriggeredAbilityI
 
     @Override
     public String getRule() {
-        return "Whenever a " + filter.getMessage() +" enters the battlefield under "
+        return "Whenever a " + filter.getMessage() + " enters the battlefield under "
                 + (opponentController ? "an opponent's control, " : "your control, ")
                 + super.getRule();
     }

Mage/src/main/java/mage/game/permanent/PermanentImpl.java

@@ -60,12 +60,15 @@ import mage.target.TargetCard;
 import mage.util.CardUtil;
 import mage.util.GameLog;
 import mage.util.ThreadLocalStringBuilder;
+import org.apache.log4j.Logger;
 
 /**
  * @author BetaSteward_at_googlemail.com
  */
 public abstract class PermanentImpl extends CardImpl implements Permanent {
 
+    private static final Logger logger = Logger.getLogger(PermanentImpl.class);
+
     public class MarkedDamageInfo {
 
         public MarkedDamageInfo(Counter counter, MageObject sourceObject) {
@@ -699,6 +702,10 @@ public abstract class PermanentImpl extends CardImpl implements Permanent {
                 }
             }
         }
+        if (getSpellAbility() == null) {
+            logger.info("FATAL : no spell ability for attach to permanent: " + getName());
+            return;
+        }
         if (!getSpellAbility().getTargets().isEmpty() && (getSpellAbility().getTargets().get(0) instanceof TargetCard)) {
             Card attachedToCard = game.getCard(this.getAttachedTo());
             if (attachedToCard != null) {