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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>
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<item>
            <title>[MC-5399] NullPointerException on server start</title>
                <link>https://bugs.mojang.com/browse/MC-5399</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;I just updated minecraft to 1.4.6, attempted to join singleplayer, and it responded by crashing with the NullPointerException, and told me to report it with the below-pasted crash report.&lt;/p&gt;

&lt;p&gt;I then tried again, and got repeated identical errors (as quickly as my console could record them):&lt;/p&gt;
&lt;div class=&quot;preformatted panel&quot; style=&quot;border-width: 1px;&quot;&gt;&lt;div class=&quot;preformattedContent panelContent&quot;&gt;
&lt;pre&gt;Wrong location! pe[&apos;Sheep&apos;/2774, l=&apos;World 2&apos;, x=-221.72, y=64.00, z=-353.37]
java.lang.Exception: Stack trace
	at java.lang.Thread.dumpStack(Thread.java:1342)
	at zz.a(SourceFile:504)
	at yc.a(SourceFile:1343)
	at in.a(SourceFile:450)
	at yc.g(SourceFile:1297)
	at yc.h(SourceFile:1196)
	at in.h(SourceFile:362)
	at net.minecraft.server.MinecraftServer.r(SourceFile:744)
	at net.minecraft.server.MinecraftServer.q(SourceFile:679)
	at bdz.q(SourceFile:117)
	at net.minecraft.server.MinecraftServer.run(SourceFile:613)
	at fy.run(SourceFile:849)
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;

&lt;p&gt;I then noticed that I was trying to use it with a world that had historically had issues (ever since a system failure while the world was running, and I had to recover the world), and tested another world, which worked.  I then tested the broken world again, and it also worked.&lt;/p&gt;

&lt;p&gt;I keep a git history of my minecraft saves.  This allowed me to checkout the older version of the world (`testing`), and test again.  The second time, I yet again got a failure.  I then ran the known-working world, which worked.  When I retried the broken world, it still does not work, and I cannot figure out how to make it work.&lt;/p&gt;

&lt;p&gt;However, upon switching back to `master`, the previously broken world works again, though it does complain:&lt;/p&gt;
&lt;div class=&quot;preformatted panel&quot; style=&quot;border-width: 1px;&quot;&gt;&lt;div class=&quot;preformattedContent panelContent&quot;&gt;
&lt;pre&gt;Chunk file at -14,-25 is in the wrong location; relocating. (Expected -14, -25, got -13, -25)
Chunk file at -14,-24 is in the wrong location; relocating. (Expected -14, -24, got -12, -16)
Chunk file at -14,-23 is in the wrong location; relocating. (Expected -14, -23, got -11, -26)
Chunk file at -14,-12 is in the wrong location; relocating. (Expected -14, -12, got -14, -26)
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;

&lt;p&gt;The .tar.bz2 archives are 14M each, and thus I can&apos;t upload them.&lt;/p&gt;
&lt;div class=&quot;preformatted panel&quot; style=&quot;border-width: 1px;&quot;&gt;&lt;div class=&quot;preformattedContent panelContent&quot;&gt;
&lt;pre&gt;---- Minecraft Crash Report (Failure 1)----
// Ooh. Shiny.

Time: 12/26/12 7:36 PM
Description: Exception in server tick loop

java.lang.NullPointerException
        at cf.b(SourceFile:103)
        at cf.a(SourceFile:35)
        at iv.b(SourceFile:436)
        at gm.a(SourceFile:72)
        at bec.b(SourceFile:73)
        at net.minecraft.server.MinecraftServer.r(SourceFile:762)
        at net.minecraft.server.MinecraftServer.q(SourceFile:679)
        at bdz.q(SourceFile:117)
        at net.minecraft.server.MinecraftServer.run(SourceFile:613)
        at fy.run(SourceFile:849)


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

-- System Details --
Details:
        Minecraft Version: 1.4.6
        Operating System: Linux (amd64) version 3.2.0-35-generic
        Java Version: 1.7.0_09, Oracle Corporation
        Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Oracle Corporation
        Memory: 123544552 bytes (117 MB) / 357892096 bytes (341 MB) up to 1908932608 bytes (1820 MB)
        JVM Flags: 1 total; -Xmx2048m
        AABB Pool Size: 83653 (4684568 bytes; 4 MB) allocated, 83653 (4684568 bytes; 4 MB) used
        Suspicious classes: No suspicious classes found.
        IntCache: cache: 18, tcache: 0, allocated: 3, tallocated: 63
        Profiler Position: N/A (disabled)
        Vec3 Pool Size: 8870 (496720 bytes; 0 MB) allocated, 8870 (496720 bytes; 0 MB) used
        Player Count: 0 / 8; []
        Type: Integrated Server (map_client.txt)
        Is Modded: Probably not. Jar signature remains and both client + server brands are untouched.
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;</description>
                <environment></environment>
        <key id="18002">MC-5399</key>
            <summary>NullPointerException on server start</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="zebediah49">Zebe Diah</reporter>
                        <labels>
                            <label>linux</label>
                    </labels>
                <created>Thu, 27 Dec 2012 02:04:25 +0100</created>
                <updated>Tue, 5 May 2015 13:34:57 +0200</updated>
                            <resolved>Thu, 27 Dec 2012 02:31:06 +0100</resolved>
                                    <version>Minecraft 1.4.6</version>
                                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                            <comments>
                            <comment id="30947" author="bljat" created="Thu, 27 Dec 2012 02:31:06 +0100"  >&lt;p&gt;Duplicate of &lt;a href=&quot;https://bugs.mojang.com/browse/MC-3766&quot; title=&quot;Game crashes when opening a second instance of a world during the loading process of the same world&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-3766&quot;&gt;&lt;del&gt;MC-3766&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10102">
                    <name>Duplicate</name>
                                            <outwardlinks description="duplicates">
                                        <issuelink>
            <issuekey id="14228">MC-2545</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="15911">MC-3766</issuekey>
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