Some synchronized changes.

trunk/java/com/l2jmobius/gameserver/model/CharEffectList.java

@@ -25,6 +25,7 @@ import java.util.Queue;
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ConcurrentLinkedQueue;
+import java.util.concurrent.CopyOnWriteArraySet;
 import java.util.concurrent.ScheduledFuture;
 import java.util.concurrent.atomic.AtomicInteger;
 import java.util.function.Consumer;
@@ -64,21 +65,21 @@ public final class CharEffectList
 {
 	private static final Logger _log = Logger.getLogger(CharEffectList.class.getName());
 	/** Queue containing all effects from buffs for this effect list. */
-	private volatile Queue<BuffInfo> _buffs;
+	private volatile Queue<BuffInfo> _buffs = new ConcurrentLinkedQueue<>();
 	/** Queue containing all triggered skills for this effect list. */
-	private volatile Queue<BuffInfo> _triggered;
+	private volatile Queue<BuffInfo> _triggered = new ConcurrentLinkedQueue<>();
 	/** Queue containing all dances/songs for this effect list. */
-	private volatile Queue<BuffInfo> _dances;
+	private volatile Queue<BuffInfo> _dances = new ConcurrentLinkedQueue<>();
 	/** Queue containing all toggle for this effect list. */
-	private volatile Queue<BuffInfo> _toggles;
+	private volatile Queue<BuffInfo> _toggles = new ConcurrentLinkedQueue<>();
 	/** Queue containing all debuffs for this effect list. */
-	private volatile Queue<BuffInfo> _debuffs;
+	private volatile Queue<BuffInfo> _debuffs = new ConcurrentLinkedQueue<>();
 	/** Queue containing all passives for this effect list. They bypass most of the actions and they are not included in most operations. */
-	private volatile Queue<BuffInfo> _passives;
+	private volatile Queue<BuffInfo> _passives = new ConcurrentLinkedQueue<>();
 	/** Map containing the all stacked effect in progress for each abnormal type. */
-	private volatile Map<AbnormalType, BuffInfo> _stackedEffects;
+	private volatile Map<AbnormalType, BuffInfo> _stackedEffects = new ConcurrentHashMap<>();
 	/** Set containing all abnormal types that shouldn't be added to this creature effect list. */
-	private volatile Set<AbnormalType> _blockedBuffSlots = null;
+	private volatile Set<AbnormalType> _blockedBuffSlots = new CopyOnWriteArraySet<>();
 	/** Short buff skill ID. */
 	private BuffInfo _shortBuff = null;
 	/** If {@code true} this effect list has buffs removed on any action. */
@@ -113,16 +114,6 @@ public final class CharEffectList
 	 */
 	public Queue<BuffInfo> getBuffs()
 	{
-		if (_buffs == null)
-		{
-			synchronized (this)
-			{
-				if (_buffs == null)
-				{
-					_buffs = new ConcurrentLinkedQueue<>();
-				}
-			}
-		}
 		return _buffs;
 	}
 	
@@ -132,16 +123,6 @@ public final class CharEffectList
 	 */
 	public Queue<BuffInfo> getTriggered()
 	{
-		if (_triggered == null)
-		{
-			synchronized (this)
-			{
-				if (_triggered == null)
-				{
-					_triggered = new ConcurrentLinkedQueue<>();
-				}
-			}
-		}
 		return _triggered;
 	}
 	
@@ -151,16 +132,6 @@ public final class CharEffectList
 	 */
 	public Queue<BuffInfo> getDances()
 	{
-		if (_dances == null)
-		{
-			synchronized (this)
-			{
-				if (_dances == null)
-				{
-					_dances = new ConcurrentLinkedQueue<>();
-				}
-			}
-		}
 		return _dances;
 	}
 	
@@ -170,16 +141,6 @@ public final class CharEffectList
 	 */
 	public Queue<BuffInfo> getToggles()
 	{
-		if (_toggles == null)
-		{
-			synchronized (this)
-			{
-				if (_toggles == null)
-				{
-					_toggles = new ConcurrentLinkedQueue<>();
-				}
-			}
-		}
 		return _toggles;
 	}
 	
@@ -189,16 +150,6 @@ public final class CharEffectList
 	 */
 	public Queue<BuffInfo> getDebuffs()
 	{
-		if (_debuffs == null)
-		{
-			synchronized (this)
-			{
-				if (_debuffs == null)
-				{
-					_debuffs = new ConcurrentLinkedQueue<>();
-				}
-			}
-		}
 		return _debuffs;
 	}
 	
@@ -208,16 +159,6 @@ public final class CharEffectList
 	 */
 	public Queue<BuffInfo> getPassives()
 	{
-		if (_passives == null)
-		{
-			synchronized (this)
-			{
-				if (_passives == null)
-				{
-					_passives = new ConcurrentLinkedQueue<>();
-				}
-			}
-		}
 		return _passives;
 	}
 	
@@ -465,16 +406,6 @@ public final class CharEffectList
 	 */
 	public void addBlockedBuffSlots(Set<AbnormalType> blockedBuffSlots)
 	{
-		if (_blockedBuffSlots == null)
-		{
-			synchronized (this)
-			{
-				if (_blockedBuffSlots == null)
-				{
-					_blockedBuffSlots = ConcurrentHashMap.newKeySet(blockedBuffSlots.size());
-				}
-			}
-		}
 		_blockedBuffSlots.addAll(blockedBuffSlots);
 	}
 	
@@ -1265,17 +1196,6 @@ public final class CharEffectList
 		// Verify stacked skills.
 		else
 		{
-			if (_stackedEffects == null)
-			{
-				synchronized (this)
-				{
-					if (_stackedEffects == null)
-					{
-						_stackedEffects = new ConcurrentHashMap<>();
-					}
-				}
-			}
-			
 			if (_stackedEffects.containsKey(skill.getAbnormalType()))
 			{
 				BuffInfo stackedInfo = _stackedEffects.get(skill.getAbnormalType());

trunk/java/com/l2jmobius/gameserver/model/L2Object.java

@@ -64,7 +64,7 @@ public abstract class L2Object extends ListenersContainer implements IIdentifiab
 	private L2WorldRegion _worldRegion;
 	/** Instance type */
 	private InstanceType _instanceType = null;
-	private volatile Map<String, Object> _scripts;
+	private volatile Map<String, Object> _scripts = new ConcurrentHashMap<>();
 	/** X coordinate */
 	private final AtomicInteger _x = new AtomicInteger(0);
 	/** Y coordinate */
@@ -531,16 +531,6 @@ public abstract class L2Object extends ListenersContainer implements IIdentifiab
 	 */
 	public final <T> T addScript(T script)
 	{
-		if (_scripts == null)
-		{
-			synchronized (this)
-			{
-				if (_scripts == null)
-				{
-					_scripts = new ConcurrentHashMap<>();
-				}
-			}
-		}
 		_scripts.put(script.getClass().getName(), script);
 		return script;
 	}

trunk/java/com/l2jmobius/gameserver/model/actor/L2Attackable.java

@@ -256,8 +256,6 @@ public class L2Attackable extends L2Npc
 			if (_firstCommandChannelAttacked == null) // looting right isn't set
 			{
 				synchronized (this)
-				{
-					if (_firstCommandChannelAttacked == null)
 				{
 					_firstCommandChannelAttacked = attacker.getParty().getCommandChannel();
 					if (_firstCommandChannelAttacked != null)
@@ -269,7 +267,6 @@ public class L2Attackable extends L2Npc
 					}
 				}
 			}
-			}
 			else if (attacker.getParty().getCommandChannel().equals(_firstCommandChannelAttacked)) // is in same channel
 			{
 				_commandChannelLastAttack = System.currentTimeMillis(); // update last attack time

trunk/java/com/l2jmobius/gameserver/model/actor/L2Character.java

@@ -29,6 +29,7 @@ import java.util.Objects;
 import java.util.Queue;
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.CopyOnWriteArraySet;
 import java.util.concurrent.Future;
 import java.util.concurrent.LinkedBlockingDeque;
 import java.util.concurrent.TimeUnit;
@@ -190,7 +191,7 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 {
 	public static final Logger _log = Logger.getLogger(L2Character.class.getName());
 	
-	private volatile Set<L2Character> _attackByList;
+	private volatile Set<L2Character> _attackByList = new CopyOnWriteArraySet<>();
 	private volatile boolean _isCastingNow = false;
 	private volatile boolean _isCastingSimultaneouslyNow = false;
 	private Skill _lastSkillCast;
@@ -225,11 +226,11 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 	/** Map containing all skills of this character. */
 	private final Map<Integer, Skill> _skills = new ConcurrentHashMap<>();
 	/** Map containing the skill reuse time stamps. */
-	private volatile Map<Integer, TimeStamp> _reuseTimeStampsSkills = null;
+	private volatile Map<Integer, TimeStamp> _reuseTimeStampsSkills = new ConcurrentHashMap<>();
 	/** Map containing the item reuse time stamps. */
-	private volatile Map<Integer, TimeStamp> _reuseTimeStampsItems = null;
+	private volatile Map<Integer, TimeStamp> _reuseTimeStampsItems = new ConcurrentHashMap<>();
 	/** Map containing all the disabled skills. */
-	private volatile Map<Integer, Long> _disabledSkills = null;
+	private volatile Map<Integer, Long> _disabledSkills = new ConcurrentHashMap<>();
 	private boolean _allSkillsDisabled;
 	
 	private final byte[] _zones = new byte[ZoneId.getZoneCount()];
@@ -246,9 +247,9 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 	
 	private boolean _lethalable = true;
 	
-	private volatile Map<Integer, OptionsSkillHolder> _triggerSkills;
+	private volatile Map<Integer, OptionsSkillHolder> _triggerSkills = new ConcurrentHashMap<>();
 	
-	private volatile Map<Integer, InvulSkillHolder> _invulAgainst;
+	private volatile Map<Integer, InvulSkillHolder> _invulAgainst = new ConcurrentHashMap<>();
 	/** Creatures effect list. */
 	private final CharEffectList _effectList = new CharEffectList(this);
 	/** The character that summons this character. */
@@ -258,8 +259,8 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 	
 	private SkillChannelized _channelized = null;
 	
-	private volatile Set<AbnormalVisualEffect> _abnormalVisualEffects;
-	private volatile Set<AbnormalVisualEffect> _currentAbnormalVisualEffects;
+	private volatile Set<AbnormalVisualEffect> _abnormalVisualEffects = new CopyOnWriteArraySet<>();
+	private volatile Set<AbnormalVisualEffect> _currentAbnormalVisualEffects = new CopyOnWriteArraySet<>();
 	
 	/** Movement data of this L2Character */
 	protected MoveData _move;
@@ -2135,16 +2136,6 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 	 */
 	public final void addTimeStampItem(L2ItemInstance item, long reuse, long systime)
 	{
-		if (_reuseTimeStampsItems == null)
-		{
-			synchronized (this)
-			{
-				if (_reuseTimeStampsItems == null)
-				{
-					_reuseTimeStampsItems = new ConcurrentHashMap<>();
-				}
-			}
-		}
 		_reuseTimeStampsItems.put(item.getObjectId(), new TimeStamp(item, reuse, systime));
 	}
 	
@@ -2155,7 +2146,7 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 	 */
 	public final synchronized long getItemRemainingReuseTime(int itemObjId)
 	{
-		final TimeStamp reuseStamp = (_reuseTimeStampsItems != null) ? _reuseTimeStampsItems.get(itemObjId) : null;
+		final TimeStamp reuseStamp = _reuseTimeStampsItems.get(itemObjId);
 		return reuseStamp != null ? reuseStamp.getRemaining() : -1;
 	}
 	
@@ -2166,7 +2157,7 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 	 */
 	public final long getReuseDelayOnGroup(int group)
 	{
-		if ((group > 0) && (_reuseTimeStampsItems != null))
+		if (group > 0)
 		{
 			for (TimeStamp ts : _reuseTimeStampsItems.values())
 			{
@@ -2207,16 +2198,6 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 	 */
 	public final void addTimeStamp(Skill skill, long reuse, long systime)
 	{
-		if (_reuseTimeStampsSkills == null)
-		{
-			synchronized (this)
-			{
-				if (_reuseTimeStampsSkills == null)
-				{
-					_reuseTimeStampsSkills = new ConcurrentHashMap<>();
-				}
-			}
-		}
 		_reuseTimeStampsSkills.put(skill.getReuseHashCode(), new TimeStamp(skill, reuse, systime));
 	}
 	
@@ -2225,23 +2206,17 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 	 * @param skill the skill to remove
 	 */
 	public final synchronized void removeTimeStamp(Skill skill)
-	{
-		if (_reuseTimeStampsSkills != null)
 	{
 		_reuseTimeStampsSkills.remove(skill.getReuseHashCode());
 	}
-	}
 	
 	/**
 	 * Removes all skill reuse time stamps.
 	 */
 	public final synchronized void resetTimeStamps()
-	{
-		if (_reuseTimeStampsSkills != null)
 	{
 		_reuseTimeStampsSkills.clear();
 	}
-	}
 	
 	/**
 	 * Gets the skill remaining reuse time for a given skill hash code.
@@ -2250,7 +2225,7 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 	 */
 	public final synchronized long getSkillRemainingReuseTime(int hashCode)
 	{
-		final TimeStamp reuseStamp = (_reuseTimeStampsSkills != null) ? _reuseTimeStampsSkills.get(hashCode) : null;
+		final TimeStamp reuseStamp = _reuseTimeStampsSkills.get(hashCode);
 		return reuseStamp != null ? reuseStamp.getRemaining() : -1;
 	}
 	
@@ -2261,7 +2236,7 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 	 */
 	public final synchronized boolean hasSkillReuse(int hashCode)
 	{
-		final TimeStamp reuseStamp = (_reuseTimeStampsSkills != null) ? _reuseTimeStampsSkills.get(hashCode) : null;
+		final TimeStamp reuseStamp = _reuseTimeStampsSkills.get(hashCode);
 		return (reuseStamp != null) && reuseStamp.hasNotPassed();
 	}
 	
@@ -2272,7 +2247,7 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 	 */
 	public final synchronized TimeStamp getSkillReuseTimeStamp(int hashCode)
 	{
-		return _reuseTimeStampsSkills != null ? _reuseTimeStampsSkills.get(hashCode) : null;
+		return _reuseTimeStampsSkills.get(hashCode);
 	}
 	
 	/**
@@ -2290,7 +2265,7 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 	 */
 	public void enableSkill(Skill skill)
 	{
-		if ((skill == null) || (_disabledSkills == null))
+		if (skill == null)
 		{
 			return;
 		}
@@ -2309,18 +2284,6 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 		{
 			return;
 		}
-		
-		if (_disabledSkills == null)
-		{
-			synchronized (this)
-			{
-				if (_disabledSkills == null)
-				{
-					_disabledSkills = new ConcurrentHashMap<>();
-				}
-			}
-		}
-		
 		_disabledSkills.put(skill.getReuseHashCode(), delay > 0 ? System.currentTimeMillis() + delay : Long.MAX_VALUE);
 	}
 	
@@ -2328,12 +2291,9 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 	 * Removes all the disabled skills.
 	 */
 	public final synchronized void resetDisabledSkills()
-	{
-		if (_disabledSkills != null)
 	{
 		_disabledSkills.clear();
 	}
-	}
 	
 	/**
 	 * Verifies if the skill is disabled.
@@ -2357,7 +2317,7 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 			return true;
 		}
 		
-		if (_disabledSkills == null)
+		if (_disabledSkills.isEmpty())
 		{
 			return false;
 		}
@@ -2454,7 +2414,7 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 			getWorldRegion().onDeath(this);
 		}
 		
-		getAttackByList().clear();
+		clearAttackByList();
 		
 		if (isChannelized())
 		{
@@ -2554,15 +2514,12 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 		if (_ai == null)
 		{
 			synchronized (this)
-			{
-				if (_ai == null)
 			{
 				// Return the new AI within the synchronized block
 				// to avoid being nulled by other threads
 				return _ai = initAI();
 			}
 		}
-		}
 		return _ai;
 	}
 	
@@ -2624,19 +2581,14 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 	 */
 	public final Set<L2Character> getAttackByList()
 	{
-		if (_attackByList == null)
-		{
-			synchronized (this)
-			{
-				if (_attackByList == null)
-				{
-					_attackByList = ConcurrentHashMap.newKeySet();
-				}
-			}
-		}
 		return _attackByList;
 	}
 	
+	public void clearAttackByList()
+	{
+		_attackByList.clear();
+	}
+	
 	public final Skill getLastSimultaneousSkillCast()
 	{
 		return _lastSimultaneousSkillCast;
@@ -3135,12 +3087,12 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 			.collect(Collectors.toCollection(HashSet::new));
 		//@formatter:on
 		
-		if (_abnormalVisualEffects != null)
+		if (!_abnormalVisualEffects.isEmpty())
 		{
 			abnormalVisualEffects.addAll(_abnormalVisualEffects);
 		}
 		
-		if ((_currentAbnormalVisualEffects == null) || !_currentAbnormalVisualEffects.equals(abnormalVisualEffects))
+		if ((_currentAbnormalVisualEffects.isEmpty()) || !_currentAbnormalVisualEffects.equals(abnormalVisualEffects))
 		{
 			_currentAbnormalVisualEffects = abnormalVisualEffects;
 			updateAbnormalVisualEffects();
@@ -3153,7 +3105,7 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 	 */
 	public Set<AbnormalVisualEffect> getCurrentAbnormalVisualEffects()
 	{
-		return _currentAbnormalVisualEffects != null ? _currentAbnormalVisualEffects : Collections.emptySet();
+		return _currentAbnormalVisualEffects;
 	}
 	
 	/**
@@ -3163,7 +3115,7 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 	 */
 	public boolean hasAbnormalVisualEffect(AbnormalVisualEffect ave)
 	{
-		return (_abnormalVisualEffects != null) && _abnormalVisualEffects.contains(ave);
+		return _abnormalVisualEffects.contains(ave);
 	}
 	
 	/**
@@ -3174,16 +3126,6 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 	{
 		for (AbnormalVisualEffect ave : aves)
 		{
-			if (_abnormalVisualEffects == null)
-			{
-				synchronized (this)
-				{
-					if (_abnormalVisualEffects == null)
-					{
-						_abnormalVisualEffects = Collections.newSetFromMap(new ConcurrentHashMap<>());
-					}
-				}
-			}
 			_abnormalVisualEffects.add(ave);
 		}
 		resetCurrentAbnormalVisualEffects();
@@ -3194,8 +3136,6 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 	 * @param aves the abnormal visual effects
 	 */
 	public final void stopAbnormalVisualEffect(AbnormalVisualEffect... aves)
-	{
-		if (_abnormalVisualEffects != null)
 	{
 		for (AbnormalVisualEffect ave : aves)
 		{
@@ -3203,7 +3143,6 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 		}
 		resetCurrentAbnormalVisualEffects();
 	}
-	}
 	
 	/**
 	 * Active the abnormal effect Fake Death flag, notify the L2Character AI and send Server->Client UserInfo/CharInfo packet.
@@ -4953,8 +4892,6 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 				target.breakCast();
 			}
 			
-			if (_triggerSkills != null)
-			{
 			for (OptionsSkillHolder holder : _triggerSkills.values())
 			{
 				if (((!crit && (holder.getSkillType() == OptionsSkillType.ATTACK)) || ((holder.getSkillType() == OptionsSkillType.CRITICAL) && crit)) && (Rnd.get(100) < holder.getChance()))
@@ -4962,7 +4899,7 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 					makeTriggerCast(holder.getSkill(), target);
 				}
 			}
-			}
+			
 			// Launch weapon onCritical Special ability effect if available
 			if (crit && (weapon != null))
 			{
@@ -5748,8 +5685,6 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 						activeWeapon.castOnMagicSkill(this, target, skill);
 					}
 					
-					if (_triggerSkills != null)
-					{
 					for (OptionsSkillHolder holder : _triggerSkills.values())
 					{
 						if (((skill.isMagic() && (holder.getSkillType() == OptionsSkillType.MAGIC)) || (skill.isPhysical() && (holder.getSkillType() == OptionsSkillType.ATTACK))) && (Rnd.get(100) < holder.getChance()))
@@ -5759,7 +5694,6 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 					}
 				}
 			}
-			}
 			
 			// Launch the magic skill and calculate its effects
 			skill.activateSkill(this, targets);
@@ -6506,16 +6440,6 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 	
 	public Map<Integer, OptionsSkillHolder> getTriggerSkills()
 	{
-		if (_triggerSkills == null)
-		{
-			synchronized (this)
-			{
-				if (_triggerSkills == null)
-				{
-					_triggerSkills = new ConcurrentHashMap<>();
-				}
-			}
-		}
 		return _triggerSkills;
 	}
 	
@@ -6793,7 +6717,7 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 	
 	public boolean isInvulAgainst(int skillId, int skillLvl)
 	{
-		if (_invulAgainst == null)
+		if (_invulAgainst.isEmpty())
 		{
 			return false;
 		}
@@ -6803,16 +6727,6 @@ public abstract class L2Character extends L2Object implements ISkillsHolder, IDe
 	
 	private Map<Integer, InvulSkillHolder> getInvulAgainstSkills()
 	{
-		if (_invulAgainst == null)
-		{
-			synchronized (this)
-			{
-				if (_invulAgainst == null)
-				{
-					_invulAgainst = new ConcurrentHashMap<>();
-				}
-			}
-		}
 		return _invulAgainst;
 	}
 	

trunk/java/com/l2jmobius/gameserver/model/actor/L2Npc.java

@@ -144,7 +144,7 @@ public class L2Npc extends L2Character
 	private int _shotsMask = 0;
 	private int _killingBlowWeaponId;
 	/** Map of summoned NPCs by this NPC. */
-	private volatile Map<Integer, L2Npc> _summonedNpcs = null;
+	private volatile Map<Integer, L2Npc> _summonedNpcs = new ConcurrentHashMap<>();
 	
 	/**
 	 * Creates a NPC.
@@ -1685,19 +1685,7 @@ public class L2Npc extends L2Character
 	 */
 	public final void addSummonedNpc(L2Npc npc)
 	{
-		if (_summonedNpcs == null)
-		{
-			synchronized (this)
-			{
-				if (_summonedNpcs == null)
-				{
-					_summonedNpcs = new ConcurrentHashMap<>();
-				}
-			}
-		}
-		
 		_summonedNpcs.put(npc.getObjectId(), npc);
-		
 		npc.setSummoner(this);
 	}
 	

trunk/java/com/l2jmobius/gameserver/model/actor/instance/L2ClanHallDoormenInstance.java

@@ -171,8 +171,6 @@ public class L2ClanHallDoormenInstance extends L2DoormenInstance
 		if (!_init)
 		{
 			synchronized (this)
-			{
-				if (!_init)
 			{
 				_clanHall = ClanHallManager.getInstance().getNearbyClanHall(getX(), getY(), 500);
 				if (_clanHall != null)
@@ -182,7 +180,6 @@ public class L2ClanHallDoormenInstance extends L2DoormenInstance
 				_init = true;
 			}
 		}
-		}
 		return _clanHall;
 	}
 	

trunk/java/com/l2jmobius/gameserver/model/actor/instance/L2ControlTowerInstance.java

@@ -31,7 +31,7 @@ import com.l2jmobius.gameserver.model.actor.templates.L2NpcTemplate;
  */
 public class L2ControlTowerInstance extends L2Tower
 {
-	private volatile List<L2Spawn> _guards;
+	private volatile List<L2Spawn> _guards = new CopyOnWriteArrayList<>();
 	
 	/**
 	 * Creates a control tower.
@@ -50,8 +50,6 @@ public class L2ControlTowerInstance extends L2Tower
 		{
 			getCastle().getSiege().killedCT(this);
 			
-			if ((_guards != null) && !_guards.isEmpty())
-			{
 			for (L2Spawn spawn : _guards)
 			{
 				try
@@ -66,7 +64,6 @@ public class L2ControlTowerInstance extends L2Tower
 			}
 			_guards.clear();
 		}
-		}
 		return super.doDie(killer);
 	}
 	
@@ -77,16 +74,6 @@ public class L2ControlTowerInstance extends L2Tower
 	
 	private final List<L2Spawn> getGuards()
 	{
-		if (_guards == null)
-		{
-			synchronized (this)
-			{
-				if (_guards == null)
-				{
-					_guards = new CopyOnWriteArrayList<>();
-				}
-			}
-		}
 		return _guards;
 	}
 }

trunk/java/com/l2jmobius/gameserver/model/actor/instance/L2MonsterInstance.java

@@ -192,13 +192,10 @@ public class L2MonsterInstance extends L2Attackable
 		if (_minionList == null)
 		{
 			synchronized (this)
-			{
-				if (_minionList == null)
 			{
 				_minionList = new MinionList(this);
 			}
 		}
-		}
 		return _minionList;
 	}
 	

trunk/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java

@@ -518,7 +518,7 @@ public final class L2PcInstance extends L2Playable
 	private long _offlineShopStart = 0;
 	
 	private Transform _transformation;
-	private volatile Map<Integer, Skill> _transformSkills;
+	private volatile Map<Integer, Skill> _transformSkills = new ConcurrentHashMap<>();
 	
 	/** The table containing all L2RecipeList of the L2PcInstance */
 	private final Map<Integer, L2RecipeList> _dwarvenRecipeBook = new ConcurrentHashMap<>();
@@ -607,7 +607,7 @@ public final class L2PcInstance extends L2Playable
 	/** The Pet of the L2PcInstance */
 	private L2Summon _pet = null;
 	/** Servitors of the L2PcInstance */
-	private volatile Map<Integer, L2Summon> _servitors = null;
+	private volatile Map<Integer, L2Summon> _servitors = new ConcurrentHashMap<>();
 	private int _usedSummonPoints = 0;
 	/** The L2Decoy of the L2PcInstance */
 	private L2Decoy _decoy = null;
@@ -693,7 +693,7 @@ public final class L2PcInstance extends L2Playable
 	
 	private L2ItemInstance _lure = null;
 	
-	private volatile Map<Integer, ExResponseCommissionInfo> _lastCommissionInfos;
+	private volatile Map<Integer, ExResponseCommissionInfo> _lastCommissionInfos = new ConcurrentHashMap<>();
 	
 	public boolean isSpawnProtected()
 	{
@@ -722,7 +722,7 @@ public final class L2PcInstance extends L2Playable
 	private int _expertiseWeaponPenalty = 0;
 	private int _expertisePenaltyBonus = 0;
 	
-	private volatile Map<Class<? extends AbstractRequest>, AbstractRequest> _requests;
+	private volatile Map<Class<? extends AbstractRequest>, AbstractRequest> _requests = new ConcurrentHashMap<>();
 	
 	protected boolean _inventoryDisable = false;
 	/** Player's cubics. */
@@ -1534,7 +1534,7 @@ public final class L2PcInstance extends L2Playable
 	}
 	
 	/** List of all QuestState instance that needs to be notified of this L2PcInstance's or its pet's death */
-	private volatile List<QuestState> _notifyQuestOfDeathList;
+	private volatile List<QuestState> _notifyQuestOfDeathList = new CopyOnWriteArrayList<>();
 	
 	/**
 	 * Add QuestState instance that is to be notified of L2PcInstance's death.
@@ -1559,11 +1559,10 @@ public final class L2PcInstance extends L2Playable
 	 */
 	public void removeNotifyQuestOfDeath(QuestState qs)
 	{
-		if ((qs == null) || (_notifyQuestOfDeathList == null))
+		if (qs == null)
 		{
 			return;
 		}
-		
 		_notifyQuestOfDeathList.remove(qs);
 	}
 	
@@ -1572,23 +1571,12 @@ public final class L2PcInstance extends L2Playable
 	 */
 	public final List<QuestState> getNotifyQuestOfDeath()
 	{
-		if (_notifyQuestOfDeathList == null)
-		{
-			synchronized (this)
-			{
-				if (_notifyQuestOfDeathList == null)
-				{
-					_notifyQuestOfDeathList = new CopyOnWriteArrayList<>();
-				}
-			}
-		}
-		
 		return _notifyQuestOfDeathList;
 	}
 	
 	public final boolean isNotifyQuestOfDeathEmpty()
 	{
-		return (_notifyQuestOfDeathList == null) || _notifyQuestOfDeathList.isEmpty();
+		return _notifyQuestOfDeathList.isEmpty();
 	}
 	
 	/**
@@ -5755,7 +5743,7 @@ public final class L2PcInstance extends L2Playable
 	@Override
 	public Map<Integer, L2Summon> getServitors()
 	{
-		return _servitors == null ? Collections.emptyMap() : _servitors;
+		return _servitors;
 	}
 	
 	public L2Summon getAnyServitor()
@@ -5796,16 +5784,6 @@ public final class L2PcInstance extends L2Playable
 	
 	public void addServitor(L2Summon servitor)
 	{
-		if (_servitors == null)
-		{
-			synchronized (this)
-			{
-				if (_servitors == null)
-				{
-					_servitors = new ConcurrentHashMap<>(1);
-				}
-			}
-		}
 		_servitors.put(servitor.getObjectId(), servitor);
 	}
 	
@@ -6035,13 +6013,10 @@ public final class L2PcInstance extends L2Playable
 		if (_manufactureItems == null)
 		{
 			synchronized (this)
-			{
-				if (_manufactureItems == null)
 			{
 				_manufactureItems = Collections.synchronizedMap(new LinkedHashMap<Integer, L2ManufactureItem>());
 			}
 		}
-		}
 		return _manufactureItems;
 	}
 	
@@ -11064,14 +11039,11 @@ public final class L2PcInstance extends L2Playable
 			if ((_teleportWatchdog == null) && (Config.TELEPORT_WATCHDOG_TIMEOUT > 0))
 			{
 				synchronized (this)
-				{
-					if (_teleportWatchdog == null)
 				{
 					_teleportWatchdog = ThreadPoolManager.getInstance().scheduleGeneral(new TeleportWatchdogTask(this), Config.TELEPORT_WATCHDOG_TIMEOUT * 1000);
 				}
 			}
 		}
-		}
 		else if (_teleportWatchdog != null)
 		{
 			_teleportWatchdog.cancel(false);
@@ -12814,16 +12786,6 @@ public final class L2PcInstance extends L2Playable
 	
 	public void addTransformSkill(Skill sk)
 	{
-		if (_transformSkills == null)
-		{
-			synchronized (this)
-			{
-				if (_transformSkills == null)
-				{
-					_transformSkills = new ConcurrentHashMap<>();
-				}
-			}
-		}
 		_transformSkills.put(sk.getId(), sk);
 		if (sk.isPassive())
 		{
@@ -12833,17 +12795,17 @@ public final class L2PcInstance extends L2Playable
 	
 	public Skill getTransformSkill(int id)
 	{
-		return _transformSkills == null ? null : _transformSkills.get(id);
+		return _transformSkills.get(id);
 	}
 	
 	public boolean hasTransformSkill(int id)
 	{
-		return (_transformSkills != null) && _transformSkills.containsKey(id);
+		return _transformSkills.containsKey(id);
 	}
 	
 	public void removeAllTransformSkills()
 	{
-		_transformSkills = null;
+		_transformSkills.clear();
 	}
 	
 	protected void startFeed(int npcId)
@@ -13075,13 +13037,10 @@ public final class L2PcInstance extends L2Playable
 		if (_chargeTask != null)
 		{
 			synchronized (this)
-			{
-				if (_chargeTask != null)
 			{
 				_chargeTask.cancel(false);
 			}
 		}
-		}
 		_chargeTask = ThreadPoolManager.getInstance().scheduleGeneral(new ResetChargesTask(this), 600000);
 	}
 	
@@ -14946,22 +14905,12 @@ public final class L2PcInstance extends L2Playable
 	 */
 	public boolean addRequest(AbstractRequest request)
 	{
-		if (_requests == null)
-		{
-			synchronized (this)
-			{
-				if (_requests == null)
-				{
-					_requests = new ConcurrentHashMap<>();
-				}
-			}
-		}
 		return canRequest(request) && (_requests.putIfAbsent(request.getClass(), request) == null);
 	}
 	
 	public boolean canRequest(AbstractRequest request)
 	{
-		return (_requests != null) && _requests.values().stream().allMatch(request::canWorkWith);
+		return _requests.values().stream().allMatch(request::canWorkWith);
 	}
 	
 	/**
@@ -14970,7 +14919,7 @@ public final class L2PcInstance extends L2Playable
 	 */
 	public boolean removeRequest(Class<? extends AbstractRequest> clazz)
 	{
-		return (_requests != null) && (_requests.remove(clazz) != null);
+		return (_requests.remove(clazz) != null);
 	}
 	
 	/**
@@ -14980,7 +14929,7 @@ public final class L2PcInstance extends L2Playable
 	 */
 	public <T extends AbstractRequest> T getRequest(Class<T> requestClass)
 	{
-		return _requests != null ? requestClass.cast(_requests.get(requestClass)) : null;
+		return requestClass.cast(_requests.get(requestClass));
 	}
 	
 	/**
@@ -14988,12 +14937,12 @@ public final class L2PcInstance extends L2Playable
 	 */
 	public boolean hasRequests()
 	{
-		return (_requests != null) && !_requests.isEmpty();
+		return !_requests.isEmpty();
 	}
 	
 	public boolean hasItemRequest()
 	{
-		return (_requests != null) && _requests.values().stream().anyMatch(AbstractRequest::isItemRequest);
+		return _requests.values().stream().anyMatch(AbstractRequest::isItemRequest);
 	}
 	
 	/**
@@ -15004,7 +14953,7 @@ public final class L2PcInstance extends L2Playable
 	@SafeVarargs
 	public final boolean hasRequest(Class<? extends AbstractRequest> requestClass, Class<? extends AbstractRequest>... classes)
 	{
-		if (_requests == null)
+		if (_requests.isEmpty())
 		{
 			return false;
 		}
@@ -15024,7 +14973,7 @@ public final class L2PcInstance extends L2Playable
 	 */
 	public boolean isProcessingItem(int objectId)
 	{
-		return (_requests != null) && _requests.values().stream().anyMatch(req -> req.isUsing(objectId));
+		return _requests.values().stream().anyMatch(req -> req.isUsing(objectId));
 	}
 	
 	/**
@@ -15032,12 +14981,9 @@ public final class L2PcInstance extends L2Playable
 	 * @param objectId
 	 */
 	public void removeRequestsThatProcessesItem(int objectId)
-	{
-		if (_requests != null)
 	{
 		_requests.values().removeIf(req -> req.isUsing(objectId));
 	}
-	}
 	
 	/*
 	 * Return current vitality points in integer format
@@ -15095,16 +15041,6 @@ public final class L2PcInstance extends L2Playable
 	 */
 	public Map<Integer, ExResponseCommissionInfo> getLastCommissionInfos()
 	{
-		if (_lastCommissionInfos == null)
-		{
-			synchronized (this)
-			{
-				if (_lastCommissionInfos == null)
-				{
-					_lastCommissionInfos = new ConcurrentHashMap<>();
-				}
-			}
-		}
 		return _lastCommissionInfos;
 	}
 	

trunk/java/com/l2jmobius/gameserver/model/actor/knownlist/CharKnownList.java

@@ -29,9 +29,9 @@ import com.l2jmobius.gameserver.util.Util;
 
 public class CharKnownList extends ObjectKnownList
 {
-	private volatile Map<Integer, L2PcInstance> _knownPlayers;
-	private volatile Map<Integer, L2Summon> _knownSummons;
-	private volatile Map<Integer, Integer> _knownRelations;
+	private volatile Map<Integer, L2PcInstance> _knownPlayers = new ConcurrentHashMap<>();
+	private volatile Map<Integer, L2Summon> _knownSummons = new ConcurrentHashMap<>();
+	private volatile Map<Integer, Integer> _knownRelations = new ConcurrentHashMap<>();
 	
 	public CharKnownList(L2Character activeChar)
 	{
@@ -225,46 +225,16 @@ public class CharKnownList extends ObjectKnownList
 	
 	public final Map<Integer, L2PcInstance> getKnownPlayers()
 	{
-		if (_knownPlayers == null)
-		{
-			synchronized (this)
-			{
-				if (_knownPlayers == null)
-				{
-					_knownPlayers = new ConcurrentHashMap<>();
-				}
-			}
-		}
 		return _knownPlayers;
 	}
 	
 	public final Map<Integer, Integer> getKnownRelations()
 	{
-		if (_knownRelations == null)
-		{
-			synchronized (this)
-			{
-				if (_knownRelations == null)
-				{
-					_knownRelations = new ConcurrentHashMap<>();
-				}
-			}
-		}
 		return _knownRelations;
 	}
 	
 	public final Map<Integer, L2Summon> getKnownSummons()
 	{
-		if (_knownSummons == null)
-		{
-			synchronized (this)
-			{
-				if (_knownSummons == null)
-				{
-					_knownSummons = new ConcurrentHashMap<>();
-				}
-			}
-		}
 		return _knownSummons;
 	}
 	

trunk/java/com/l2jmobius/gameserver/model/actor/knownlist/ObjectKnownList.java

@@ -27,7 +27,7 @@ import com.l2jmobius.gameserver.util.Util;
 public class ObjectKnownList
 {
 	private final L2Object _activeObject;
-	private volatile Map<Integer, L2Object> _knownObjects;
+	private volatile Map<Integer, L2Object> _knownObjects = new ConcurrentHashMap<>();
 	
 	public ObjectKnownList(L2Object activeObject)
 	{
@@ -193,16 +193,6 @@ public class ObjectKnownList
 	 */
 	public final Map<Integer, L2Object> getKnownObjects()
 	{
-		if (_knownObjects == null)
-		{
-			synchronized (this)
-			{
-				if (_knownObjects == null)
-				{
-					_knownObjects = new ConcurrentHashMap<>();
-				}
-			}
-		}
 		return _knownObjects;
 	}
 }

trunk/java/com/l2jmobius/gameserver/model/entity/Fort.java

@@ -889,13 +889,10 @@ public final class Fort extends AbstractResidence
 		if (_siege == null)
 		{
 			synchronized (this)
-			{
-				if (_siege == null)
 			{
 				_siege = new FortSiege(this);
 			}
 		}
-		}
 		return _siege;
 	}
 	

trunk/java/com/l2jmobius/gameserver/model/events/ListenersContainer.java

@@ -30,7 +30,7 @@ import com.l2jmobius.util.EmptyQueue;
  */
 public class ListenersContainer
 {
-	private volatile Map<EventType, Queue<AbstractEventListener>> _listeners = null;
+	private volatile Map<EventType, Queue<AbstractEventListener>> _listeners = new ConcurrentHashMap<>();
 	
 	/**
 	 * Registers listener for a callback when specified event is executed.
@@ -58,10 +58,6 @@ public class ListenersContainer
 		{
 			throw new NullPointerException("Listener cannot be null!");
 		}
-		else if (_listeners == null)
-		{
-			throw new NullPointerException("Listeners container is not initialized!");
-		}
 		else if (!_listeners.containsKey(listener.getType()))
 		{
 			throw new IllegalAccessError("Listeners container doesn't had " + listener.getType() + " event type added!");
@@ -77,7 +73,7 @@ public class ListenersContainer
 	 */
 	public Queue<AbstractEventListener> getListeners(EventType type)
 	{
-		return (_listeners != null) && _listeners.containsKey(type) ? _listeners.get(type) : EmptyQueue.emptyQueue();
+		return _listeners.containsKey(type) ? _listeners.get(type) : EmptyQueue.emptyQueue();
 	}
 	
 	public void removeListenerIf(EventType type, Predicate<? super AbstractEventListener> filter)
@@ -86,12 +82,9 @@ public class ListenersContainer
 	}
 	
 	public void removeListenerIf(Predicate<? super AbstractEventListener> filter)
-	{
-		if (_listeners != null)
 	{
 		getListeners().values().forEach(queue -> queue.stream().filter(filter).forEach(AbstractEventListener::unregisterMe));
 	}
-	}
 	
 	public boolean hasListener(EventType type)
 	{
@@ -104,16 +97,6 @@ public class ListenersContainer
 	 */
 	private Map<EventType, Queue<AbstractEventListener>> getListeners()
 	{
-		if (_listeners == null)
-		{
-			synchronized (this)
-			{
-				if (_listeners == null)
-				{
-					_listeners = new ConcurrentHashMap<>();
-				}
-			}
-		}
 		return _listeners;
 	}
 }

trunk/java/com/l2jmobius/gameserver/model/quest/Quest.java

@@ -245,13 +245,10 @@ public class Quest extends AbstractScript implements IIdentifiable
 		if (_questTimers == null)
 		{
 			synchronized (this)
-			{
-				if (_questTimers == null)
 			{
 				_questTimers = new ConcurrentHashMap<>(1);
 			}
 		}
-		}
 		return _questTimers;
 	}
 	
@@ -2798,13 +2795,10 @@ public class Quest extends AbstractScript implements IIdentifiable
 		if (_startCondition == null)
 		{
 			synchronized (this)
-			{
-				if (_startCondition == null)
 			{
 				_startCondition = new LinkedHashMap<>(1);
 			}
 		}
-		}
 		return _startCondition;
 	}
 	

trunk/java/com/l2jmobius/gameserver/model/skills/BuffInfo.java

@@ -51,7 +51,7 @@ public final class BuffInfo
 	private final List<AbstractEffect> _effects = new ArrayList<>(1);
 	// Tasks
 	/** Effect tasks for ticks. */
-	private volatile Map<AbstractEffect, EffectTaskInfo> _tasks;
+	private volatile Map<AbstractEffect, EffectTaskInfo> _tasks = new ConcurrentHashMap<>();
 	/** Scheduled future. */
 	private ScheduledFuture<?> _scheduledFutureTimeTask;
 	// Time and ticks
@@ -106,16 +106,6 @@ public final class BuffInfo
 	 */
 	private void addTask(AbstractEffect effect, EffectTaskInfo effectTaskInfo)
 	{
-		if (_tasks == null)
-		{
-			synchronized (this)
-			{
-				if (_tasks == null)
-				{
-					_tasks = new ConcurrentHashMap<>();
-				}
-			}
-		}
 		_tasks.put(effect, effectTaskInfo);
 	}
 	
@@ -126,7 +116,7 @@ public final class BuffInfo
 	 */
 	private EffectTaskInfo getEffectTask(AbstractEffect effect)
 	{
-		return (_tasks == null) ? null : _tasks.get(effect);
+		return _tasks.get(effect);
 	}
 	
 	/**
@@ -318,13 +308,10 @@ public final class BuffInfo
 	public void finishEffects()
 	{
 		// Cancels the ticking task.
-		if (_tasks != null)
-		{
 		for (EffectTaskInfo effectTask : _tasks.values())
 		{
 			effectTask.getScheduledFuture().cancel(true); // Don't allow to finish current run.
 		}
-		}
 		// Remove stats
 		removeStats();
 		// Notify on exit.
@@ -404,15 +391,12 @@ public final class BuffInfo
 	 * @return the current tick count
 	 */
 	public int getTickCount(AbstractEffect effect)
-	{
-		if (_tasks != null)
 	{
 		final EffectTaskInfo effectTaskInfo = _tasks.get(effect);
 		if (effectTaskInfo != null)
 		{
 			return effectTaskInfo.getEffectTask().getTickCount();
 		}
-		}
 		return 0;
 	}
 	

trunk/java/com/l2jmobius/gameserver/model/skills/Skill.java

@@ -1833,8 +1833,6 @@ public final class Skill implements IIdentifiable
 		if (_effectTypes == null)
 		{
 			synchronized (this)
-			{
-				if (_effectTypes == null)
 			{
 				final Set<Byte> effectTypesSet = new HashSet<>();
 				for (List<AbstractEffect> effectList : _effectLists.values())
@@ -1857,7 +1855,6 @@ public final class Skill implements IIdentifiable
 				_effectTypes = effectTypesArray;
 			}
 		}
-		}
 		
 		if (Arrays.binarySearch(_effectTypes, (byte) effectType.ordinal()) >= 0)
 		{

trunk/java/com/l2jmobius/gameserver/model/zone/type/L2EffectZone.java

@@ -130,13 +130,10 @@ public class L2EffectZone extends L2ZoneType
 		if ((_skills != null) && (getSettings().getTask() == null))
 		{
 			synchronized (this)
-			{
-				if (getSettings().getTask() == null)
 			{
 				getSettings().setTask(ThreadPoolManager.getInstance().scheduleGeneralAtFixedRate(new ApplySkill(), _initialDelay, _reuse));
 			}
 		}
-		}
 		if (!character.isPlayer())
 		{
 			return;
@@ -192,13 +189,10 @@ public class L2EffectZone extends L2ZoneType
 		if (_skills == null)
 		{
 			synchronized (this)
-			{
-				if (_skills == null)
 			{
 				_skills = new ConcurrentHashMap<>(3);
 			}
 		}
-		}
 		_skills.put(skillId, skillLvL);
 	}