package net.sf.l2j.gameserver.model.actor.instance;

import java.util.List;

import javolution.util.FastList;
import net.sf.l2j.gameserver.MonsterRace;
import net.sf.l2j.gameserver.ThreadPoolManager;
import net.sf.l2j.gameserver.idfactory.IdFactory;
import net.sf.l2j.gameserver.model.L2ItemInstance;
import net.sf.l2j.gameserver.model.actor.knownlist.RaceManagerKnownList;
import net.sf.l2j.gameserver.serverpackets.ActionFailed;
import net.sf.l2j.gameserver.serverpackets.DeleteObject;
import net.sf.l2j.gameserver.serverpackets.InventoryUpdate;
import net.sf.l2j.gameserver.serverpackets.MonRaceInfo;
import net.sf.l2j.gameserver.serverpackets.NpcHtmlMessage;
import net.sf.l2j.gameserver.serverpackets.PlaySound;
import net.sf.l2j.gameserver.serverpackets.ServerBasePacket;
import net.sf.l2j.gameserver.serverpackets.SystemMessage;
import net.sf.l2j.gameserver.templates.L2NpcTemplate;
import net.sf.l2j.gameserver.util.Broadcast;

public class L2JukeboxInstance extends L2NpcInstance
{

    public void onBypassFeedback(L2PcInstance player, String command)
	{
	if (command.startsWith("jukebox"))
		{
            try
            {
                jukebox(activeChar,command.substring(17));
            }
            catch (StringIndexOutOfBoundsException e)
            { }
		}
	}
	
	public void jukebox(L2PcInstance activeChar, String sound)
	{
		PlaySound _snd = new PlaySound(1,sound,0,0,0,0,0);
		activeChar.sendPacket(_snd);
		activeChar.broadcastPacket(_snd);
		showMainPage(activeChar);
		SystemMessage _sm = new SystemMessage(614);
		_sm.addString("Playing "+sound+".");
		activeChar.sendPacket(_sm);
	}
}

Error on compilation :

compile:
    [javac] Compiling 1007 source files to C:\Workspace\[l2j]Server\build\classes
    [javac] C:\Workspace\[l2j]Server\java\net\sf\l2j\gameserver\model\actor\instance\L2JukeboxInstance.java:22: cannot find symbol
    [javac] symbol  : constructor L2NpcInstance()
    [javac] location: class net.sf.l2j.gameserver.model.actor.instance.L2NpcInstance
    [javac] public class L2JukeboxInstance extends L2NpcInstance
    [javac] ^
    [javac] C:\Workspace\[l2j]Server\java\net\sf\l2j\gameserver\model\actor\instance\L2JukeboxInstance.java:31: cannot find symbol
    [javac] symbol  : variable activeChar
    [javac] location: class net.sf.l2j.gameserver.model.actor.instance.L2JukeboxInstance
    [javac] jukebox(activeChar,command.substring(17));
    [javac] ^
    [javac] C:\Workspace\[l2j]Server\java\net\sf\l2j\gameserver\model\actor\instance\L2JukeboxInstance.java:43: cannot find symbol
    [javac] symbol  : method showMainPage(net.sf.l2j.gameserver.model.actor.instance.L2PcInstance)
    [javac] location: class net.sf.l2j.gameserver.model.actor.instance.L2JukeboxInstance
    [javac] showMainPage(activeChar);
    [javac] ^
    [javac] Note: * uses or overrides a deprecated API.
    [javac] Note: Recompile with -Xlint:deprecation for details.
    [javac] Note: Some input files use unchecked or unsafe operations.
    [javac] Note: Recompile with -Xlint:unchecked for details.
    [javac] 3 errors