Removed most stream filter uses.

L2J_Mobius_C6_Interlude/java/org/l2jmobius/gameserver/communitybbs/Manager/MailBBSManager.java

@@ -532,10 +532,18 @@ public class MailBBSManager extends BaseBBSManager
 		final Timestamp ts = new Timestamp(currentDate - 86400000);
 		
 		// Check sender mails based on previous timestamp. If more than 10 mails have been found for today, then cancel the use.
-		if (getPlayerMails(activeChar.getObjectId()).stream().filter(l -> l.sentDate.after(ts) && (l.location == MailType.SENTBOX)).count() >= 10)
+		int count = 0;
+		for (Mail mail : getPlayerMails(activeChar.getObjectId()))
 		{
-			activeChar.sendPacket(SystemMessageId.NO_MORE_MESSAGES_MAY_BE_SENT_AT_THIS_TIME_EACH_ACCOUNT_IS_ALLOWED_10_MESSAGES_PER_DAY);
-			return;
+			if (mail.sentDate.after(ts) && (mail.location == MailType.SENTBOX))
+			{
+				count++;
+			}
+			if (count >= 10)
+			{
+				activeChar.sendPacket(SystemMessageId.NO_MORE_MESSAGES_MAY_BE_SENT_AT_THIS_TIME_EACH_ACCOUNT_IS_ALLOWED_10_MESSAGES_PER_DAY);
+				return;
+			}
 		}
 		
 		// Format recipient names. If more than 5 are found, cancel the mail.

L2J_Mobius_C6_Interlude/java/org/l2jmobius/gameserver/datatables/xml/FishData.java

@@ -19,7 +19,6 @@ package org.l2jmobius.gameserver.datatables.xml;
 import java.io.File;
 import java.util.ArrayList;
 import java.util.List;
-import java.util.stream.Collectors;
 
 import org.w3c.dom.Document;
 import org.w3c.dom.NamedNodeMap;
@@ -86,8 +85,15 @@ public class FishData implements IXmlReader
 	 */
 	public Fish getFish(int lvl, int type, int group)
 	{
-		final List<Fish> fish = _fish.stream().filter(f -> (f.getLevel() == lvl) && (f.getType() == type) && (f.getGroup() == group)).collect(Collectors.toList());
-		return fish.get(Rnd.get(fish.size()));
+		final List<Fish> result = new ArrayList<>();
+		for (Fish fish : _fish)
+		{
+			if ((fish.getLevel() == lvl) && (fish.getType() == type) && (fish.getGroup() == group))
+			{
+				result.add(fish);
+			}
+		}
+		return result.get(Rnd.get(result.size()));
 	}
 	
 	public static FishData getInstance()

L2J_Mobius_C6_Interlude/java/org/l2jmobius/gameserver/datatables/xml/HennaData.java

@@ -17,10 +17,10 @@
 package org.l2jmobius.gameserver.datatables.xml;
 
 import java.io.File;
+import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
-import java.util.stream.Collectors;
 
 import org.w3c.dom.Document;
 import org.w3c.dom.NamedNodeMap;
@@ -91,7 +91,15 @@ public class HennaData implements IXmlReader
 	 */
 	public List<Henna> getAvailableHennasFor(PlayerInstance player)
 	{
-		return _hennas.values().stream().filter(h -> h.canBeUsedBy(player)).collect(Collectors.toList());
+		final List<Henna> result = new ArrayList<>();
+		for (Henna henna : _hennas.values())
+		{
+			if (henna.canBeUsedBy(player))
+			{
+				result.add(henna);
+			}
+		}
+		return result;
 	}
 	
 	public static HennaData getInstance()

L2J_Mobius_C6_Interlude/java/org/l2jmobius/gameserver/model/actor/instance/FenceInstance.java

@@ -90,17 +90,19 @@ public class FenceInstance extends WorldObject
 				deleteObjects[i] = new DeleteObject(_heightFences[i]);
 			}
 			
-			getKnownList().getKnownObjects().values().stream().filter(PlayerInstance.class::isInstance).map(PlayerInstance.class::cast).forEach(player ->
+			for (WorldObject obj : getKnownList().getKnownObjects().values())
 			{
-				for (DeleteObject deleteObject : deleteObjects)
+				if ((obj != null) && obj.isPlayer())
 				{
-					player.sendPacket(deleteObject);
+					for (DeleteObject deleteObject : deleteObjects)
+					{
+						obj.getActingPlayer().sendPacket(deleteObject);
+					}
 				}
-			});
+			}
 		}
 		
 		decayMe();
-		
 		FenceData.getInstance().removeFence(this);
 		return false;
 	}
@@ -113,7 +115,13 @@ public class FenceInstance extends WorldObject
 	public void setState(FenceState type)
 	{
 		_state = type;
-		getKnownList().getKnownObjects().values().stream().filter(PlayerInstance.class::isInstance).map(PlayerInstance.class::cast).forEach(this::sendInfo);
+		for (WorldObject obj : getKnownList().getKnownObjects().values())
+		{
+			if ((obj != null) && obj.isPlayer())
+			{
+				sendInfo(obj.getActingPlayer());
+			}
+		}
 	}
 	
 	public int getWidth()

L2J_Mobius_C6_Interlude/java/org/l2jmobius/gameserver/model/quest/Quest.java

@@ -30,7 +30,6 @@ import java.util.Map;
 import java.util.concurrent.CopyOnWriteArrayList;
 import java.util.logging.Level;
 import java.util.logging.Logger;
-import java.util.stream.Collectors;
 
 import org.l2jmobius.Config;
 import org.l2jmobius.commons.database.DatabaseFactory;
@@ -1354,7 +1353,16 @@ public class Quest extends ManagedScript
 			return (checkPlayerCondition(player, npc, var, value) != null) ? Arrays.asList(player) : Collections.emptyList();
 		}
 		
-		return party.getPartyMembers().stream().filter(m -> checkPlayerCondition(m, npc, var, value) != null).collect(Collectors.toList());
+		final List<PlayerInstance> result = new ArrayList<>();
+		for (PlayerInstance member : party.getPartyMembers())
+		{
+			if (checkPlayerCondition(member, npc, var, value) != null)
+			{
+				result.add(member);
+			}
+		}
+		
+		return result;
 	}
 	
 	/**
@@ -1481,7 +1489,16 @@ public class Quest extends ManagedScript
 			return (checkPlayerState(player, npc, state) != null) ? Arrays.asList(player) : Collections.emptyList();
 		}
 		
-		return party.getPartyMembers().stream().filter(m -> checkPlayerState(m, npc, state) != null).collect(Collectors.toList());
+		final List<PlayerInstance> result = new ArrayList<>();
+		for (PlayerInstance member : party.getPartyMembers())
+		{
+			if (checkPlayerState(member, npc, state) != null)
+			{
+				result.add(member);
+			}
+		}
+		
+		return result;
 	}
 	
 	/**