Avoid directly utilizing the disconnect method for GameClient.

L2J_Mobius_C6_Interlude/java/org/l2jmobius/gameserver/network/GameClient.java

@@ -79,11 +79,12 @@ public class GameClient extends NetClient
 		LOGGER_ACCOUNTING.finer("Client disconnected: " + this);
 		LoginServerThread.getInstance().sendLogout(_accountName);
 		_connectionState = ConnectionState.DISCONNECTED;
+		super.onDisconnection();
 	}
 	
 	public void closeNow()
 	{
-		disconnect();
+		onDisconnection();
 		
 		synchronized (this)
 		{

L2J_Mobius_C6_Interlude/java/org/l2jmobius/gameserver/network/PacketHandler.java

@@ -43,7 +43,7 @@ public class PacketHandler implements PacketHandlerInterface<GameClient>
 		{
 			LOGGER.warning("PacketHandler: Problem receiving packet id from " + client);
 			LOGGER.warning(CommonUtil.getStackTrace(e));
-			client.disconnect();
+			client.closeNow();
 			return;
 		}
 		

L2J_Mobius_C6_Interlude/java/org/l2jmobius/gameserver/network/clientpackets/Logout.java

@@ -40,6 +40,7 @@ public class Logout implements ClientPacket
 		final Player player = client.getPlayer();
 		if (player == null)
 		{
+			client.closeNow();
 			return;
 		}