Fixed a critical bug that caused game freezes. Updated plugin jars.

Mage.Server.Plugins/Mage.Player.AI.MA/src/mage/player/ai/ComputerPlayer6.java

@@ -118,6 +118,7 @@ public class ComputerPlayer6 extends ComputerPlayer<ComputerPlayer6> implements
 	@Override
 	public boolean priority(Game game) {
 		logState(game);
+        game.getState().setPriorityPlayerId(playerId);
 		game.firePriorityEvent(playerId);
 		switch (game.getTurn().getStepType()) {
 			case UPKEEP:

Mage.Server.Plugins/Mage.Player.AI.MA/src/mage/player/ai/ComputerPlayer7.java

@@ -87,6 +87,7 @@ public class ComputerPlayer7 extends ComputerPlayer6 implements Player {
 		logState(game);
 		if (logger.isDebugEnabled())
 			logger.debug("Game State: Turn-" + game.getTurnNum() + " Step-" + game.getTurn().getStepType() + " ActivePlayer-" + game.getPlayer(game.getActivePlayerId()).getName() + " PriorityPlayer-" + name);
+        game.getState().setPriorityPlayerId(playerId);
 		game.firePriorityEvent(playerId);
 		switch (game.getTurn().getStepType()) {
 			case UPKEEP:

Mage.Server.Plugins/Mage.Player.AIMCTS/src/mage/player/ai/ComputerPlayerMCTS.java

@@ -27,11 +27,6 @@
  */
 package mage.player.ai;
 
-import java.util.ArrayList;
-import java.util.List;
-import java.util.UUID;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
 import mage.Constants.PhaseStep;
 import mage.Constants.RangeOfInfluence;
 import mage.Constants.Zone;
@@ -50,6 +45,12 @@ import mage.player.ai.MCTSPlayer.NextAction;
 import mage.players.Player;
 import org.apache.log4j.Logger;
 
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
 /**
  *
  * @author BetaSteward_at_googlemail.com
@@ -91,6 +92,7 @@ public class ComputerPlayerMCTS extends ComputerPlayer<ComputerPlayerMCTS> imple
     public boolean priority(Game game) {
         if (game.getStep().getType() == PhaseStep.PRECOMBAT_MAIN)
             logList("computer player " + name + " hand: ", new ArrayList(hand.getCards(game)));
+        game.getState().setPriorityPlayerId(playerId);
         game.firePriorityEvent(playerId);
         getNextAction(game, NextAction.PRIORITY);
         Ability ability =  root.getAction();

Mage.Server.Plugins/Mage.Player.AIMinimax/src/mage/player/ai/ComputerPlayer2.java

@@ -133,6 +133,7 @@ public class ComputerPlayer2 extends ComputerPlayer<ComputerPlayer2> implements
 	@Override
 	public boolean priority(Game game) {
 		logState(game);
+        game.getState().setPriorityPlayerId(playerId);
 		game.firePriorityEvent(playerId);
 		switch (game.getTurn().getStepType()) {
 			case UPKEEP:

Mage.Server.Plugins/Mage.Player.AIMinimax/src/mage/player/ai/ComputerPlayer3.java

@@ -28,9 +28,6 @@
 
 package mage.player.ai;
 
-import java.util.LinkedList;
-import java.util.List;
-import java.util.UUID;
 import mage.Constants.AbilityType;
 import mage.Constants.PhaseStep;
 import mage.Constants.RangeOfInfluence;
@@ -41,26 +38,14 @@ import mage.game.Game;
 import mage.game.combat.Combat;
 import mage.game.combat.CombatGroup;
 import mage.game.events.GameEvent;
-import mage.game.turn.BeginCombatStep;
-import mage.game.turn.BeginningPhase;
-import mage.game.turn.CleanupStep;
-import mage.game.turn.CombatDamageStep;
-import mage.game.turn.CombatPhase;
-import mage.game.turn.DeclareAttackersStep;
-import mage.game.turn.DeclareBlockersStep;
-import mage.game.turn.DrawStep;
-import mage.game.turn.EndOfCombatStep;
-import mage.game.turn.EndPhase;
-import mage.game.turn.EndStep;
-import mage.game.turn.FirstCombatDamageStep;
-import mage.game.turn.PostCombatMainPhase;
-import mage.game.turn.PostCombatMainStep;
-import mage.game.turn.Step;
-import mage.game.turn.UntapStep;
-import mage.game.turn.UpkeepStep;
+import mage.game.turn.*;
 import mage.players.Player;
 import org.apache.log4j.Logger;
 
+import java.util.LinkedList;
+import java.util.List;
+import java.util.UUID;
+
 /**
  *
  * @author BetaSteward_at_googlemail.com
@@ -100,6 +85,7 @@ public class ComputerPlayer3 extends ComputerPlayer2 implements Player {
 		logState(game);
 		if (logger.isDebugEnabled())
 			logger.debug("Game State: Turn-" + game.getTurnNum() + " Step-" + game.getTurn().getStepType() + " ActivePlayer-" + game.getPlayer(game.getActivePlayerId()).getName() + " PriorityPlayer-" + name);
+        game.getState().setPriorityPlayerId(playerId);
 		game.firePriorityEvent(playerId);
 		switch (game.getTurn().getStepType()) {
 			case UPKEEP:

Mage.Server/src/main/java/mage/server/game/GameController.java

@@ -28,25 +28,8 @@
 
 package mage.server.game;
 
-import java.io.BufferedOutputStream;
-
-import mage.MageException;
-import mage.server.*;
-
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.ObjectOutput;
-import java.io.ObjectOutputStream;
-import java.io.OutputStream;
-import java.io.Serializable;
-import java.util.*;
-import java.util.Map.Entry;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Future;
-import java.util.zip.GZIPOutputStream;
-
 import mage.Constants.Zone;
+import mage.MageException;
 import mage.abilities.Ability;
 import mage.cards.Card;
 import mage.cards.Cards;
@@ -59,14 +42,26 @@ import mage.game.events.PlayerQueryEvent;
 import mage.game.events.TableEvent;
 import mage.game.permanent.Permanent;
 import mage.players.Player;
-import mage.server.util.SystemUtil;
+import mage.server.*;
 import mage.server.util.Splitter;
+import mage.server.util.SystemUtil;
 import mage.server.util.ThreadExecutor;
 import mage.sets.Sets;
-import mage.view.*;
+import mage.view.AbilityPickerView;
+import mage.view.CardsView;
 import mage.view.ChatMessage.MessageColor;
+import mage.view.GameView;
+import mage.view.PermanentView;
 import org.apache.log4j.Logger;
 
+import java.io.*;
+import java.util.*;
+import java.util.Map.Entry;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Future;
+import java.util.zip.GZIPOutputStream;
+
 /**
  *
  * @author BetaSteward_at_googlemail.com
@@ -596,10 +591,17 @@ public class GameController implements GameCallback {
 				else {
 					//System.out.println("asThough: " + playerId + " " + game.getPriorityPlayerId());
 					Player player = game.getPlayer(playerId);
+                    boolean found = false;
 					for (UUID controlled : player.getPlayersUnderYourControl()) {
-						if (gameSessions.containsKey(controlled) && game.getPriorityPlayerId().equals(controlled))
+						if (gameSessions.containsKey(controlled) && game.getPriorityPlayerId().equals(controlled)) {
 							command.execute(controlled);
+                            found = true;
+                        }
 					}
+                    if (!found) {
+                        // something wrong - it may cause game freezes
+                        logger.warn("WARNING! GameController.sendMessage - couldn't find session for action execution.");
+                    }
 				}
 		} else {
 			// ignore - no control over the turn