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    <title>Mojang Studios Jira</title>
    <link>https://bugs.mojang.com</link>
    <description>This file is an XML representation of an issue</description>
    <language>en</language>    <build-info>
        <version>9.12.2</version>
        <build-number>9120002</build-number>
        <build-date>10-01-2024</build-date>
    </build-info>


<item>
            <title>[MC-4390] Minecraft crashes when I try to load any SSP world.</title>
                <link>https://bugs.mojang.com/browse/MC-4390</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;Minecraft crashes when I attempt to load any survival/creative singleplayer world.&lt;/p&gt;

&lt;p&gt;Minecraft works normally on survival/creative multiplayer.&lt;/p&gt;

&lt;p&gt;Yes, I use mods, even if these reports say I don&apos;t. It still crashes without the mods I use, which are these: (all of them latest version)  ModLoader, Optifine, Autoswitcher, TooManyItems, and thebombzen&apos;s API mod.&lt;/p&gt;

&lt;p&gt;How do you reproduce this problem?&lt;/p&gt;

&lt;p&gt;1. Open Minecraft&lt;br/&gt;
2. Choose any survival/creative singeplayer world.&lt;br/&gt;
3. Attempt to open the world so you can play it.&lt;br/&gt;
4. Get an error/crash report screen.&lt;/p&gt;

&lt;p&gt;I use 32 bit Windows XP Home Edition Service Pack 3.&lt;br/&gt;
Minecraft version 1.4.5&lt;/p&gt;

&lt;p&gt;Here&apos;s the last 3 crash reports I got. Yes, this is happening over and over and over....&lt;/p&gt;



&lt;p&gt;Crash Report #1&lt;/p&gt;
&lt;div class=&quot;code panel&quot; style=&quot;border-width: 1px;&quot;&gt;&lt;div class=&quot;codeContent panelContent&quot;&gt;
&lt;pre class=&quot;code-java&quot;&gt;---- Minecraft Crash Report ----
&lt;span class=&quot;code-comment&quot;&gt;// You should &lt;span class=&quot;code-keyword&quot;&gt;try&lt;/span&gt; our sister game, Minceraft!
&lt;/span&gt;
Time: 12/9/12 6:31 PM
Description: Rendering screen

java.lang.RuntimeException: Failed to check session lock, aborting
at aho.h(SourceFile:49)
at aho.&amp;lt;init&amp;gt;(SourceFile:35)
at ahk.&amp;lt;init&amp;gt;(SourceFile:16)
at ahl.a(SourceFile:78)
at net.minecraft.client.Minecraft.a(SourceFile:1369)
at auh.e(SourceFile:157)
at aui.a(SourceFile:205)
at aug.a(SourceFile:175)
at auh.a(SourceFile:178)
at bac.b(SourceFile:774)
at net.minecraft.client.Minecraft.J(SourceFile:604)
at net.minecraft.client.Minecraft.run(SourceFile:534)
at java.lang.&lt;span class=&quot;code-object&quot;&gt;Thread&lt;/span&gt;.run(Unknown Source)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
at aho.h(SourceFile:49)
at aho.&amp;lt;init&amp;gt;(SourceFile:35)
at ahk.&amp;lt;init&amp;gt;(SourceFile:16)
at ahl.a(SourceFile:78)
at net.minecraft.client.Minecraft.a(SourceFile:1369)
at auh.e(SourceFile:157)
at aui.a(SourceFile:205)
at aug.a(SourceFile:175)
at auh.a(SourceFile:178)

-- Screen render details --
Details:
Screen name: bem
Mouse location: Scaled: (164, 115). Absolute: (329, 248)
Screen size: Scaled: (427, 240). Absolute: (854, 480). Scale factor of 2
Stacktrace:
at bac.b(SourceFile:774)
at net.minecraft.client.Minecraft.J(SourceFile:604)
at net.minecraft.client.Minecraft.run(SourceFile:534)
at java.lang.&lt;span class=&quot;code-object&quot;&gt;Thread&lt;/span&gt;.run(Unknown Source)

-- &lt;span class=&quot;code-object&quot;&gt;System&lt;/span&gt; Details --
Details:
Minecraft Version: 1.4.5
Operating &lt;span class=&quot;code-object&quot;&gt;System&lt;/span&gt;: Windows XP (x86) version 5.1
Java Version: 1.7.0_09, Oracle Corporation
Java VM Version: Java HotSpot&#8482; Client VM (mixed mode), Oracle Corporation
Memory: 453233632 bytes (432 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB)
JVM Flags: 2 total; -Xms512m -Xmx1024m
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Suspicious classes: No suspicious classes found.
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
LWJGL: 2.4.2
OpenGL: GeForce 8200/PCI/SSE2/3DNOW! GL version 3.0.0, NVIDIA Corporation
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Texture Pack: Default
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: &lt;span class=&quot;code-keyword&quot;&gt;null&lt;/span&gt;
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;



&lt;p&gt;Crash Report #2&lt;/p&gt;
&lt;div class=&quot;code panel&quot; style=&quot;border-width: 1px;&quot;&gt;&lt;div class=&quot;codeContent panelContent&quot;&gt;
&lt;pre class=&quot;code-java&quot;&gt;---- Minecraft Crash Report ----
&lt;span class=&quot;code-comment&quot;&gt;// I bet Cylons wouldn&apos;t have &lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt; problem.
&lt;/span&gt;
Time: 12/9/12 6:37 PM
Description: Updating screen events

java.lang.RuntimeException: Failed to check session lock, aborting
at aho.h(SourceFile:49)
at aho.&amp;lt;init&amp;gt;(SourceFile:35)
at ahk.&amp;lt;init&amp;gt;(SourceFile:16)
at ahl.a(SourceFile:78)
at net.minecraft.client.Minecraft.a(SourceFile:1369)
at auh.e(SourceFile:157)
at auh.a(SourceFile:122)
at aue.a(SourceFile:71)
at aue.d(SourceFile:125)
at aue.m(SourceFile:110)
at net.minecraft.client.Minecraft.l(SourceFile:1085)
at net.minecraft.client.Minecraft.J(SourceFile:582)
at net.minecraft.client.Minecraft.run(SourceFile:534)
at java.lang.&lt;span class=&quot;code-object&quot;&gt;Thread&lt;/span&gt;.run(Unknown Source)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
at aho.h(SourceFile:49)
at aho.&amp;lt;init&amp;gt;(SourceFile:35)
at ahk.&amp;lt;init&amp;gt;(SourceFile:16)
at ahl.a(SourceFile:78)
at net.minecraft.client.Minecraft.a(SourceFile:1369)
at auh.e(SourceFile:157)
at auh.a(SourceFile:122)
at aue.a(SourceFile:71)
at aue.d(SourceFile:125)
at aue.m(SourceFile:110)

-- Affected screen --
Details:
Screen name: bem
Stacktrace:
at net.minecraft.client.Minecraft.l(SourceFile:1085)
at net.minecraft.client.Minecraft.J(SourceFile:582)
at net.minecraft.client.Minecraft.run(SourceFile:534)
at java.lang.&lt;span class=&quot;code-object&quot;&gt;Thread&lt;/span&gt;.run(Unknown Source)

-- &lt;span class=&quot;code-object&quot;&gt;System&lt;/span&gt; Details --
Details:
Minecraft Version: 1.4.5
Operating &lt;span class=&quot;code-object&quot;&gt;System&lt;/span&gt;: Windows XP (x86) version 5.1
Java Version: 1.7.0_09, Oracle Corporation
Java VM Version: Java HotSpot&#8482; Client VM (mixed mode), Oracle Corporation
Memory: 469470928 bytes (447 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB)
JVM Flags: 2 total; -Xms512m -Xmx1024m
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Suspicious classes: IWrUpdater, Config, WrUpdaterSmooth, ...]
IntCache: cache: 0, tcache: 0, allocated: 3, tallocated: 63
ModLoader: Mods loaded: 4
ModLoader 1.4.5
mod_ThebombzenAPI ThebombzenAPI v1.1.4 &lt;span class=&quot;code-keyword&quot;&gt;for&lt;/span&gt; Minecraft 1.4.5
mod_AutoSwitch AutoSwitch v2.4.8 &lt;span class=&quot;code-keyword&quot;&gt;for&lt;/span&gt; Minecraft 1.4.5
mod_TooManyItems 1.4.5 2012-11-19

LWJGL: 2.4.2
OpenGL: GeForce 8200/PCI/SSE2/3DNOW! GL version 3.0.0, NVIDIA Corporation
Is Modded: Very likely; Jar signature invalidated
Type: Client (map_client.txt)
Texture Pack: Default
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: &lt;span class=&quot;code-keyword&quot;&gt;null&lt;/span&gt;
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;
&lt;p&gt;Crash Report #3&lt;/p&gt;
&lt;div class=&quot;code panel&quot; style=&quot;border-width: 1px;&quot;&gt;&lt;div class=&quot;codeContent panelContent&quot;&gt;
&lt;pre class=&quot;code-java&quot;&gt;---- Minecraft Crash Report ----
&lt;span class=&quot;code-comment&quot;&gt;// I just don&apos;t know what went wrong :(
&lt;/span&gt;
Time: 12/9/12 6:47 PM
Description: Rendering screen

java.lang.RuntimeException: Failed to check session lock, aborting
at aho.h(SourceFile:49)
at aho.&amp;lt;init&amp;gt;(SourceFile:35)
at ahk.&amp;lt;init&amp;gt;(SourceFile:16)
at ahl.a(SourceFile:78)
at net.minecraft.client.Minecraft.a(SourceFile:1369)
at auh.e(SourceFile:157)
at aui.a(SourceFile:205)
at aug.a(SourceFile:175)
at auh.a(SourceFile:178)
at bac.b(EntityRenderer.java:1147)
at EntityRendererProxy.b(EntityRendererProxy.java:20)
at net.minecraft.client.Minecraft.J(SourceFile:604)
at net.minecraft.client.Minecraft.run(SourceFile:534)
at java.lang.&lt;span class=&quot;code-object&quot;&gt;Thread&lt;/span&gt;.run(Unknown Source)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
at aho.h(SourceFile:49)
at aho.&amp;lt;init&amp;gt;(SourceFile:35)
at ahk.&amp;lt;init&amp;gt;(SourceFile:16)
at ahl.a(SourceFile:78)
at net.minecraft.client.Minecraft.a(SourceFile:1369)
at auh.e(SourceFile:157)
at aui.a(SourceFile:205)
at aug.a(SourceFile:175)
at auh.a(SourceFile:178)

-- Screen render details --
Details:
Screen name: bem
Mouse location: Scaled: (149, 43). Absolute: (299, 393)
Screen size: Scaled: (427, 240). Absolute: (854, 480). Scale factor of 2
Stacktrace:
at bac.b(EntityRenderer.java:1147)
at EntityRendererProxy.b(EntityRendererProxy.java:20)
at net.minecraft.client.Minecraft.J(SourceFile:604)
at net.minecraft.client.Minecraft.run(SourceFile:534)
at java.lang.&lt;span class=&quot;code-object&quot;&gt;Thread&lt;/span&gt;.run(Unknown Source)

-- &lt;span class=&quot;code-object&quot;&gt;System&lt;/span&gt; Details --
Details:
Minecraft Version: 1.4.5
Operating &lt;span class=&quot;code-object&quot;&gt;System&lt;/span&gt;: Windows XP (x86) version 5.1
Java Version: 1.7.0_09, Oracle Corporation
Java VM Version: Java HotSpot&#8482; Client VM (mixed mode), Oracle Corporation
Memory: 476206576 bytes (454 MB) / 519110656 bytes (495 MB) up to 1037959168 bytes (989 MB)
JVM Flags: 2 total; -Xms512m -Xmx1024m
AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
Suspicious classes: IWrUpdater, Config, WrUpdaterSmooth, ...]
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
ModLoader: Mods loaded: 4
ModLoader 1.4.5
mod_ThebombzenAPI ThebombzenAPI v1.1.4 &lt;span class=&quot;code-keyword&quot;&gt;for&lt;/span&gt; Minecraft 1.4.5
mod_AutoSwitch AutoSwitch v2.4.8 &lt;span class=&quot;code-keyword&quot;&gt;for&lt;/span&gt; Minecraft 1.4.5
mod_TooManyItems 1.4.5 2012-11-19

LWJGL: 2.4.2
OpenGL: GeForce 8200/PCI/SSE2/3DNOW! GL version 3.0.0, NVIDIA Corporation
Is Modded: Very likely; Jar signature invalidated
Type: Client (map_client.txt)
Texture Pack: Default
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: &lt;span class=&quot;code-keyword&quot;&gt;null&lt;/span&gt;
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;</description>
                <environment>n/a</environment>
        <key id="16838">MC-4390</key>
            <summary>Minecraft crashes when I try to load any SSP world.</summary>
                <type id="1" iconUrl="https://bugs.mojang.com/secure/viewavatar?size=xsmall&amp;avatarId=18903&amp;avatarType=issuetype">Bug</type>
                                    <status id="5" iconUrl="https://bugs.mojang.com/images/icons/statuses/resolved.png" description="A resolution has been taken, and it is awaiting verification by reporter. From here issues are either reopened, or are closed.">Resolved</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="3">Duplicate</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="bigjoe54321">Joseph </reporter>
                        <labels>
                            <label>crash</label>
                            <label>world</label>
                    </labels>
                <created>Mon, 10 Dec 2012 02:40:47 +0100</created>
                <updated>Tue, 5 May 2015 09:17:44 +0200</updated>
                            <resolved>Fri, 12 Apr 2013 14:50:34 +0200</resolved>
                                    <version>Minecraft 1.4.5</version>
                                                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                            <comments>
                            <comment id="27484" author="bljat" created="Mon, 10 Dec 2012 02:41:40 +0100"  >&lt;p&gt;This ticket is invalid as it relates to a modded or 3rd party client/server.&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Any non-standard client/server build needs to be taken up with the appropriate team, not Mojang.&lt;/li&gt;
	&lt;li&gt;Any plugin issues need to be addressed to the plugin creator.&lt;/li&gt;
	&lt;li&gt;This site is for addressing issues related to the base unmodded MineCraft.&lt;/li&gt;
&lt;/ul&gt;
</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10102">
                    <name>Duplicate</name>
                                            <outwardlinks description="duplicates">
                                        <issuelink>
            <issuekey id="24039">MC-10167</issuekey>
        </issuelink>
                            </outwardlinks>
                                                        </issuelinktype>
                    </issuelinks>
                <attachments>
                            <attachment id="15086" name="minecraftcrash.bmp" size="3932214" author="bigjoe54321" created="Mon, 10 Dec 2012 02:40:47 +0100"/>
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