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Help Instance Loader Error zaken

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kreis

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November 6, 20179 yr

[21:28:25] ERROR: /root/game/data/scripts/handlers/InstanceLoader.java 
java.lang.NullPointerException
	at instances.CavernOfThePirateCaptain.CavernOfThePirateCaptain.checkConditions(CavernOfThePirateCaptain.java:220)
	at instances.AbstractInstance.enterInstance(AbstractInstance.java:76)
	at instances.CavernOfThePirateCaptain.CavernOfThePirateCaptain.onAdvEvent(CavernOfThePirateCaptain.java:290)
	at l2r.gameserver.model.quest.Quest.notifyEvent(Quest.java:550)
	at l2r.gameserver.model.actor.instance.L2PcInstance.processQuestEvent(L2PcInstance.java:1544)
	at handlers.bypasshandlers.QuestLink.useBypass(QuestLink.java:76)
	at l2r.gameserver.network.clientpackets.RequestBypassToServer.runImpl(RequestBypassToServer.java:296)
	at l2r.gameserver.network.clientpackets.L2GameClientPacket.run(L2GameClientPacket.java:73)
	at l2r.gameserver.network.L2GameClient.run(L2GameClient.java:1124)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
[21:28:25] ERROR: CavernOfThePirateCaptain: java.lang.NullPointerException
	at instances.CavernOfThePirateCaptain.CavernOfThePirateCaptain.checkConditions(CavernOfThePirateCaptain.java:220)
	at instances.AbstractInstance.enterInstance(AbstractInstance.java:76)
	at instances.CavernOfThePirateCaptain.CavernOfThePirateCaptain.onAdvEvent(CavernOfThePirateCaptain.java:290)
	at l2r.gameserver.model.quest.Quest.notifyEvent(Quest.java:550)
	at l2r.gameserver.model.actor.instance.L2PcInstance.processQuestEvent(L2PcInstance.java:1544)
	at handlers.bypasshandlers.QuestLink.useBypass(QuestLink.java:76)
	at l2r.gameserver.network.clientpackets.RequestBypassToServer.runImpl(RequestBypassToServer.java:296)
	at l2r.gameserver.network.clientpackets.L2GameClientPacket.run(L2GameClientPacket.java:73)
	at l2r.gameserver.network.L2GameClient.run(L2GameClient.java:1124)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

i cant find whats is wrong can some one help me?

using high five files l2j

kreis

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November 6, 20179 yr

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final boolean is83 = InstanceManager.getInstance().getPlayerWorld(player).getTemplateId() == TEMPLATE_ID_83 ? true : false;

and whant can by wrong whith this line? i need to chose true or false?

Edited November 6, 20179 yr by kreis

melron

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November 6, 20179 yr

seems like it needs rework... what instance is the object 'player' ? what arguments getPlayerWorld method have? also you have edit this line to:

final boolean is83 = InstanceManager.getInstance().getPlayerWorld(player).getTemplateId() == TEMPLATE_ID_83;

Its boolean logic.

It could be even in getTemplateId() ... try this one

boolean is83 = false;
if (InstanceManager.getInstance().getPlayerWorld(player)!= null)
{
	if (InstanceManager.getInstance().getPlayerWorld(player).getTemplateId() != null) // if getTemplateId() returns int then replace the null check with > 0
		is83 =InstanceManager.getInstance().getPlayerWorld(player).getTemplateId()  == TEMPLATE_ID_83;
	else
		System.out.println("template Id == null");
}
else
	System.out.println("get player == null");

And check your console

Edited November 6, 20179 yr by melron

Tryskell

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November 6, 20179 yr

getPlayerWorld(player) probably returns null, yup. You miss a null check for this one. getTemplateId() can't be null, at worst it's 0 if it's an int.

boolean is83 = false;
final WhateverInstance type = InstanceManager.getInstance().getPlayerWorld(player);
if (type != null)
      is83 = type.getTemplateId() == TEMPLATE_ID_83;

PS : if the whatever stuff is null at this point, then probably you got an issue way higher (or the type should be checked way higher). Except if it's a normal behavior to get a null here (check other uses).

Edited November 6, 20179 yr by Tryskell

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NPC Temples Pack with Effects (Interlude).7z

Well i checked the NPC IDs as you suggested.

The server-side NPC IDs match the entries in npcgrp.dat and npcname-e.dat exactly (40040–40049), with no duplicates or display-ID substitutions. the rabbit appearance was occurring in a client that didn't contain those custom NPC records. However, the client crash is a separate issue.
i tested NPC 40042 using LineageNPCs6Script.effectnpc_a and the Kain_van_Holter_m00 mesh.

💥When that NPC came into view, my standard Interlude client crashed.

After inspecting the pack, i noticed that :

1. LineageNpcs6.ukx, LineageNPCs6Script.u and LineageNPCs6Effect.u use a non-standard package header (Lineage2Ver11 followed by 0xD839), rather than the standard Interlude Lineage2Ver111 format.

The included L2Mid packages use Lineage2Ver821.
Several NPC entries reference additional packages that aren't included in the archive.
my environment is Lucera2 Interlude with a standard Interlude client.
if you could you please clarify:

1.Were the LineageNpcs6 files made for a protected or modified Interlude client?
2.Do they require a specific encryption key, DLL or client patch?
3.Are standard Interlude-compatible versions of these files available?
4.Are the missing model packages supposed to be included separately?

i would like to use the actual custom NPC models, rather than replacing them with retail models.
Thanks for your help!

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By klouditem · 2 hours ago2 hr
Is L2J's gameserver security indefinitelly compromised ?

It's very easy to call everyone an AI slop vibe coder nowadays when they disagree with you. Let me educate you a bit on the history of Java emulation of Lineage 2 to make my point clearer.

L2J took a very bad turn around 2010.

Around that date, most of people people who were capable programmers that created L2J and L2JFree simply for fun, were starting to get replaced by people who were primarily server-owners or paid-developers who simply wanted either recognition or to steer the project towards personal agendas.

A lot of the L2JServer code got rewritten back then, by so called "senior developers" who decided to "move things to the Datapack" and other niche ideas. This "rewrite" of older code lead to the introduction of most exploits that work today and that AI keeps finding.

For example, around that time, Zoey76 who was leading L2JServer decided to rewrite the favourites module of the community board. That code was perfectly fine, and he rewrote it in a very bad way that introduced a memory leak that can be triggered by a malicious user that can lead to OOM on the server. A lot of packs who forked from L2JServer both private and public have this issue nowadays.

Generally the quality of the developers after 2010 went down because most of these people were qualified asslickers and not qualified developers.

The same rewrite era led to the introduction of a nasty adena dupe exploit that is currently working in many servers using re-bidding from a clan leader that changed a clan and then cancelling the bit. This was fixed, new developers regressed it.

And it's not just the era of L2JServer's 2010+ years. Later on Mobius took control of the scene and he has done a lot of such mistakes too. And it's not just open source. L2Scripts, check the 2020 leak, you can craft manor packets to plant baium rings instead of crops. aCis has messed up zone system, you can become invulnerable in multiple ways and nobody can kill you too. I can go on and on about how insecure ALL the packs are.

"But if you point an AI to the code it will tell you the security issues". Note quietly. AI is a reflection of your skills, if you dont know where to look, how to look, how the mechanics of the code work it wont find anything. There are people who use AI and people who CAN USE AI. It's different.

The reality is for someone who knows what he is doing and an AI agent, it's easy to "demote" the security of all these decent packs to "mediocre".

In some months I'm planning to open a server of my own. I'm terrified to the idea of not knowing all my security vulnerabilities and of a hacker who can come and TRASH it for fun ...

These are existing risks for all of us, that a lot of you dont seem to be taking under consideration ...

By aguy · 2 hours ago2 hr
Is L2J's gameserver security indefinitelly compromised ?

It couldn't have been explained better.
People who consider themselves senior developers because they know how to write text to an AI, whose QA is simply to jump in and see if it works without understanding the actual mechanics or what they entail, is frustrating.
Furthermore, treating developers as if they're nothing because AI can do the same things we do is simply ridiculous.
Imagine you have to create a recipe for a contest and you have zero cooking experience, and your opponent is a professional chef. Even using AI, the odds of winning are low. The same applies here.

By rexen · 3 hours ago3 hr

Help Instance Loader Error zaken

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