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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-5895] snapshot 13w01a single player crash</title>
                <link>https://bugs.mojang.com/browse/MC-5895</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;Simply put, minecraft crashes when I try to open single player with 13w01a installed. I just click on single player on the main menu, it appears to be loading for a few seconds, then crash. &lt;/p&gt;

&lt;p&gt;If it helps, here&apos;s the crash report from my .minecraft folder;&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;// Hey, that tickles! Hehehe!
&lt;/span&gt;
Time: 1/3/13 6:36 PM
Description: Updating screen events

java.lang.SecurityException: SHA1 digest error &lt;span class=&quot;code-keyword&quot;&gt;for&lt;/span&gt; aux.class
	at sun.security.util.ManifestEntryVerifier.verify(Unknown Source)
	at java.util.jar.JarVerifier.processEntry(Unknown Source)
	at java.util.jar.JarVerifier.update(Unknown Source)
	at java.util.jar.JarVerifier$VerifierStream.read(Unknown Source)
	at sun.misc.Resource.getBytes(Unknown Source)
	at java.net.URLClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.access$000(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.&lt;span class=&quot;code-object&quot;&gt;ClassLoader&lt;/span&gt;.loadClass(Unknown Source)
	at java.lang.&lt;span class=&quot;code-object&quot;&gt;ClassLoader&lt;/span&gt;.loadClass(Unknown Source)
	at bfm.a(SourceFile:183)
	at auy.a(SourceFile:72)
	at bfm.a(SourceFile:414)
	at auy.d(SourceFile:127)
	at auy.m(SourceFile:111)
	at net.minecraft.client.Minecraft.l(SourceFile:1086)
	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 sun.security.util.ManifestEntryVerifier.verify(Unknown Source)
	at java.util.jar.JarVerifier.processEntry(Unknown Source)
	at java.util.jar.JarVerifier.update(Unknown Source)
	at java.util.jar.JarVerifier$VerifierStream.read(Unknown Source)
	at sun.misc.Resource.getBytes(Unknown Source)
	at java.net.URLClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.access$000(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.&lt;span class=&quot;code-object&quot;&gt;ClassLoader&lt;/span&gt;.loadClass(Unknown Source)
	at java.lang.&lt;span class=&quot;code-object&quot;&gt;ClassLoader&lt;/span&gt;.loadClass(Unknown Source)
	at bfm.a(SourceFile:183)
	at auy.a(SourceFile:72)
	at bfm.a(SourceFile:414)
	at auy.d(SourceFile:127)
	at auy.m(SourceFile:111)

-- Affected screen --
Details:
	Screen name: bfm
Stacktrace:
	at net.minecraft.client.Minecraft.l(SourceFile:1086)
	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: 13w01a
	Operating &lt;span class=&quot;code-object&quot;&gt;System&lt;/span&gt;: Windows 7 (amd64) version 6.1
	Java Version: 1.6.0_27, Sun Microsystems Inc.
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Sun Microsystems Inc.
	Memory: 471707600 bytes (449 MB) / 514523136 bytes (490 MB) up to 954466304 bytes (910 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: Intel(R) HD Graphics Family GL version 3.0.0 - Build 8.15.10.2291, Intel
	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;</description>
                <environment></environment>
        <key id="18549">MC-5895</key>
            <summary>snapshot 13w01a single player crash</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="michealikruhara0110">Mitchell Decker</reporter>
                        <labels>
                    </labels>
                <created>Fri, 4 Jan 2013 01:06:16 +0100</created>
                <updated>Mon, 3 Jun 2013 17:19:45 +0200</updated>
                            <resolved>Fri, 4 Jan 2013 01:12:22 +0100</resolved>
                                    <version>Snapshot 13w01a</version>
                                                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                            <comments>
                            <comment id="32457" author="bljat" created="Fri, 4 Jan 2013 01:12:22 +0100"  >&lt;p&gt;Duplicate of &lt;a href=&quot;https://bugs.mojang.com/browse/MC-4830&quot; title=&quot;Minecraft crashing&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-4830&quot;&gt;&lt;del&gt;MC-4830&lt;/del&gt;&lt;/a&gt;, sorry.&lt;/p&gt;</comment>
                    </comments>
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                                        <issuelink>
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