Prevent SendSkillList packet spam with a task.

L2J_Mobius_1.0_Ertheia/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java

@@ -731,6 +731,8 @@ public final class L2PcInstance extends L2Playable
 	private ScheduledFuture<?> _taskRentPet;
 	private ScheduledFuture<?> _taskWater;
 	
+	private ScheduledFuture<?> _skillListRefreshTask;
+	
 	/** Last Html Npcs, 0 = last html was not bound to an npc */
 	private final int[] _htmlActionOriginObjectIds = new int[HtmlActionScope.values().length];
 	/**
@@ -9488,8 +9490,15 @@ public final class L2PcInstance extends L2Playable
 	}
 	
 	public void sendSkillList()
+	{
+		if (_skillListRefreshTask == null)
+		{
+			_skillListRefreshTask = ThreadPoolManager.schedule(() ->
 			{
 				sendSkillList(0);
+				_skillListRefreshTask = null;
+			}, 1000);
+		}
 	}
 	
 	public void sendSkillList(int lastLearnedSkillId)

L2J_Mobius_2.5_Underground/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java

@@ -730,6 +730,8 @@ public final class L2PcInstance extends L2Playable
 	private ScheduledFuture<?> _taskRentPet;
 	private ScheduledFuture<?> _taskWater;
 	
+	private ScheduledFuture<?> _skillListRefreshTask;
+	
 	/** Last Html Npcs, 0 = last html was not bound to an npc */
 	private final int[] _htmlActionOriginObjectIds = new int[HtmlActionScope.values().length];
 	/**
@@ -9489,8 +9491,15 @@ public final class L2PcInstance extends L2Playable
 	}
 	
 	public void sendSkillList()
+	{
+		if (_skillListRefreshTask == null)
+		{
+			_skillListRefreshTask = ThreadPoolManager.schedule(() ->
 			{
 				sendSkillList(0);
+				_skillListRefreshTask = null;
+			}, 1000);
+		}
 	}
 	
 	public void sendSkillList(int lastLearnedSkillId)

L2J_Mobius_3.0_Helios/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java

@@ -732,6 +732,8 @@ public final class L2PcInstance extends L2Playable
 	private ScheduledFuture<?> _taskRentPet;
 	private ScheduledFuture<?> _taskWater;
 	
+	private ScheduledFuture<?> _skillListRefreshTask;
+	
 	/** Last Html Npcs, 0 = last html was not bound to an npc */
 	private final int[] _htmlActionOriginObjectIds = new int[HtmlActionScope.values().length];
 	/**
@@ -9499,8 +9501,15 @@ public final class L2PcInstance extends L2Playable
 	}
 	
 	public void sendSkillList()
+	{
+		if (_skillListRefreshTask == null)
+		{
+			_skillListRefreshTask = ThreadPoolManager.schedule(() ->
 			{
 				sendSkillList(0);
+				_skillListRefreshTask = null;
+			}, 1000);
+		}
 	}
 	
 	public void sendSkillList(int lastLearnedSkillId)

L2J_Mobius_4.0_GrandCrusade/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java

@@ -740,6 +740,8 @@ public final class L2PcInstance extends L2Playable
 	private ScheduledFuture<?> _taskRentPet;
 	private ScheduledFuture<?> _taskWater;
 	
+	private ScheduledFuture<?> _skillListRefreshTask;
+	
 	/** Last Html Npcs, 0 = last html was not bound to an npc */
 	private final int[] _htmlActionOriginObjectIds = new int[HtmlActionScope.values().length];
 	/**
@@ -9497,8 +9499,15 @@ public final class L2PcInstance extends L2Playable
 	}
 	
 	public void sendSkillList()
+	{
+		if (_skillListRefreshTask == null)
+		{
+			_skillListRefreshTask = ThreadPoolManager.schedule(() ->
 			{
 				sendSkillList(0);
+				_skillListRefreshTask = null;
+			}, 1000);
+		}
 	}
 	
 	public void sendSkillList(int lastLearnedSkillId)

L2J_Mobius_Classic_2.0_Saviors/java/com/l2jmobius/gameserver/model/actor/instance/L2PcInstance.java

@@ -728,6 +728,8 @@ public final class L2PcInstance extends L2Playable
 	private ScheduledFuture<?> _taskRentPet;
 	private ScheduledFuture<?> _taskWater;
 	
+	private ScheduledFuture<?> _skillListRefreshTask;
+	
 	/** Last Html Npcs, 0 = last html was not bound to an npc */
 	private final int[] _htmlActionOriginObjectIds = new int[HtmlActionScope.values().length];
 	/**
@@ -9432,8 +9434,15 @@ public final class L2PcInstance extends L2Playable
 	}
 	
 	public void sendSkillList()
+	{
+		if (_skillListRefreshTask == null)
+		{
+			_skillListRefreshTask = ThreadPoolManager.schedule(() ->
 			{
 				sendSkillList(0);
+				_skillListRefreshTask = null;
+			}, 1000);
+		}
 	}
 	
 	public void sendSkillList(int lastLearnedSkillId)