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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-12236] Server crashes when a certain user logs in</title>
                <link>https://bugs.mojang.com/browse/MC-12236</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;When a certain user logs in (or anyone approaches certain coordinates, the game crashes. The symptom is massive lag plus chunks not loading. There is a stack trace being generated.&lt;/p&gt;

&lt;p&gt;---- Minecraft Crash Report ----&lt;br/&gt;
// This is a token for 1 free hug. Redeem at your nearest Mojangsta: &lt;a href=&quot;https://bugs.mojang.com/secure/ViewProfile.jspa?name=%7EHUG%7E%7E&quot; class=&quot;user-hover&quot; rel=&quot;~HUG~~&quot;&gt;&lt;sub&gt;HUG&lt;/sub&gt;~&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;Time: 3/16/13 4:38 PM&lt;br/&gt;
Description: Loading entity NBT&lt;/p&gt;

&lt;p&gt;java.lang.NullPointerException&lt;br/&gt;
	at net.minecraft.server.v1_4_R1.EntityItemFrame.a(SourceFile:64)&lt;br/&gt;
	at net.minecraft.server.v1_4_R1.EntityItemFrame.a(SourceFile:93)&lt;br/&gt;
	at net.minecraft.server.v1_4_R1.Entity.e(Entity.java:1160)&lt;br/&gt;
	at net.minecraft.server.v1_4_R1.EntityTypes.a(SourceFile:122)&lt;br/&gt;
	at net.minecraft.server.v1_4_R1.ChunkRegionLoader.loadEntities(ChunkRegionLoader.java:333)&lt;br/&gt;
	at org.bukkit.craftbukkit.v1_4_R1.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:47)&lt;br/&gt;
	at org.bukkit.craftbukkit.v1_4_R1.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:13)&lt;br/&gt;
	at org.bukkit.craftbukkit.v1_4_R1.util.AsynchronousExecutor$Task.finish(AsynchronousExecutor.java:179)&lt;br/&gt;
	at org.bukkit.craftbukkit.v1_4_R1.util.AsynchronousExecutor.finishActive(AsynchronousExecutor.java:287)&lt;br/&gt;
	at org.bukkit.craftbukkit.v1_4_R1.chunkio.ChunkIOExecutor.tick(ChunkIOExecutor.java:30)&lt;br/&gt;
	at net.minecraft.server.v1_4_R1.MinecraftServer.r(MinecraftServer.java:537)&lt;br/&gt;
	at net.minecraft.server.v1_4_R1.DedicatedServer.r(DedicatedServer.java:224)&lt;br/&gt;
	at net.minecraft.server.v1_4_R1.MinecraftServer.q(MinecraftServer.java:494)&lt;br/&gt;
	at net.minecraft.server.v1_4_R1.MinecraftServer.run(MinecraftServer.java:427)&lt;br/&gt;
	at net.minecraft.server.v1_4_R1.ThreadServerApplication.run(SourceFile:849)&lt;/p&gt;


&lt;p&gt;A detailed walkthrough of the error, its code path and all known details is as follows:&lt;br/&gt;
---------------------------------------------------------------------------------------&lt;/p&gt;

&lt;p&gt;&amp;#8211; Head &amp;#8211;&lt;br/&gt;
Stacktrace:&lt;br/&gt;
	at net.minecraft.server.v1_4_R1.EntityItemFrame.a(SourceFile:64)&lt;br/&gt;
	at net.minecraft.server.v1_4_R1.EntityItemFrame.a(SourceFile:93)&lt;/p&gt;

&lt;p&gt;&amp;#8211; Entity being loaded &amp;#8211;&lt;br/&gt;
Details:&lt;br/&gt;
	Entity Type: ItemFrame (net.minecraft.server.v1_4_R1.EntityItemFrame)&lt;br/&gt;
	Entity ID: 38666&lt;br/&gt;
	Name: entity.ItemFrame.name&lt;br/&gt;
	Exact location: -9979.50, 67.50, -49977.06&lt;br/&gt;
	Block location: World: (-9980,67,-49978), Chunk: (at 4,4,6 in -624,-3124; contains blocks -9984,0,-49984 to -9969,255,-49969), Region: (-20,-98; contains chunks -640,-3136 to -609,-3105, blocks -10240,0,-50176 to -9729,255,-49665)&lt;br/&gt;
	Momentum: 0.00, 0.00, 0.00&lt;br/&gt;
Stacktrace:&lt;br/&gt;
	at net.minecraft.server.v1_4_R1.Entity.e(Entity.java:1160)&lt;br/&gt;
	at net.minecraft.server.v1_4_R1.EntityTypes.a(SourceFile:122)&lt;br/&gt;
	at net.minecraft.server.v1_4_R1.ChunkRegionLoader.loadEntities(ChunkRegionLoader.java:333)&lt;br/&gt;
	at org.bukkit.craftbukkit.v1_4_R1.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:47)&lt;br/&gt;
	at org.bukkit.craftbukkit.v1_4_R1.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:13)&lt;br/&gt;
	at org.bukkit.craftbukkit.v1_4_R1.util.AsynchronousExecutor$Task.finish(AsynchronousExecutor.java:179)&lt;br/&gt;
	at org.bukkit.craftbukkit.v1_4_R1.util.AsynchronousExecutor.finishActive(AsynchronousExecutor.java:287)&lt;br/&gt;
	at org.bukkit.craftbukkit.v1_4_R1.chunkio.ChunkIOExecutor.tick(ChunkIOExecutor.java:30)&lt;br/&gt;
	at net.minecraft.server.v1_4_R1.MinecraftServer.r(MinecraftServer.java:537)&lt;br/&gt;
	at net.minecraft.server.v1_4_R1.DedicatedServer.r(DedicatedServer.java:224)&lt;br/&gt;
	at net.minecraft.server.v1_4_R1.MinecraftServer.q(MinecraftServer.java:494)&lt;br/&gt;
	at net.minecraft.server.v1_4_R1.MinecraftServer.run(MinecraftServer.java:427)&lt;br/&gt;
	at net.minecraft.server.v1_4_R1.ThreadServerApplication.run(SourceFile:849)&lt;/p&gt;</description>
                <environment>Minecraft Version: 1.4.7&lt;br/&gt;
Operating System: Linux (amd64) version 3.4.24-nfo&lt;br/&gt;
Java Version: 1.7.0_11, Oracle Corporation&lt;br/&gt;
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation&lt;br/&gt;
Memory: 388960528 bytes (370 MB) / 623575040 bytes (594 MB) up to 1908932608 bytes (1820 MB)&lt;br/&gt;
JVM Flags: 1 total; -Xmx2048M</environment>
        <key id="26982">MC-12236</key>
            <summary>Server crashes when a certain user logs in</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="7">Invalid</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="wellfedhobo">Bradley Rhea</reporter>
                        <labels>
                            <label>crash</label>
                            <label>multiplayer</label>
                    </labels>
                <created>Sun, 17 Mar 2013 18:33:57 +0100</created>
                <updated>Mon, 18 Mar 2013 21:49:58 +0100</updated>
                            <resolved>Sun, 17 Mar 2013 18:35:10 +0100</resolved>
                                    <version>Minecraft 1.4.7</version>
                    <version>Minecraft 1.5</version>
                                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                            <comments>
                            <comment id="55179" author="modwizcode" created="Mon, 18 Mar 2013 21:49:58 +0100"  >&lt;p&gt;Sorry about the confusion I read it pretty closely and then missed that line. I find that using vanilla not only helps stop crashes, it lets you find creative ways to replicate plugin functionality and makes the game less about mods and more about playing.&lt;/p&gt;</comment>
                            <comment id="55039" author="bljat" created="Mon, 18 Mar 2013 16:01:14 +0100"  >&lt;p&gt;Please do not mark issues as private, unless your bug report is a security issue containing information that may compromise your server/client.&lt;/p&gt;</comment>
                            <comment id="55005" author="wellfedhobo" created="Mon, 18 Mar 2013 13:05:18 +0100"  >&lt;p&gt;My apologies. I forgot that we were using bukkit for 1.4.7. We&apos;re on vanilla 1.5 now. Found the issue anyways. We had problems with 1.5 and switched back to 1.4.7 but not fast enough, apparently. People already had stuff like quartz, so when that player logged in, it tried to load the map with a large quartz block structure but had no info for that block ID, hence the null pointer. &lt;/p&gt;</comment>
                            <comment id="54995" author="rydian" created="Mon, 18 Mar 2013 10:45:32 +0100"  >&lt;p&gt;Yeah, Bukkit is NOT vanilla, a Bukkit server is a modded server even if you don&apos;t have any plugins installed (as it&apos;s already been modified to take plugins in the first place and insert the required API).&lt;/p&gt;</comment>
                            <comment id="54972" author="kumasasa" created="Mon, 18 Mar 2013 07:52:47 +0100"  >&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;org.bukkit.craftbukkit.v1_4_R1
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;
&lt;p&gt;Isn&apos;t this mod enough, is it ?&lt;/p&gt;</comment>
                            <comment id="54957" author="modwizcode" created="Mon, 18 Mar 2013 05:31:37 +0100"  >&lt;p&gt;This issue has been marked incorrectly. The issue does not have any mod information in the log causing the conclusion reached by Tails to be &lt;b&gt;incorrect&lt;/b&gt;&lt;/p&gt;</comment>
                            <comment id="54620" author="bljat" created="Sun, 17 Mar 2013 18:35:11 +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 &lt;b&gt;base unmodded MineCraft&lt;/b&gt;.&lt;/li&gt;
&lt;/ul&gt;
</comment>
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