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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-12085] Updating Screen Events - Can&apos;t play single player worlds after redstone update</title>
                <link>https://bugs.mojang.com/browse/MC-12085</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;Crashes with Survival or Creative games in single player mode whenever I tell the world to open. I have been able to access the multiplayer game that I have a server for on my system and last night accessed a friend&apos;s server.&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 has crashed!      
      ----------------------      

Minecraft has stopped running because it encountered a problem; Updating screen events

A full error report has been saved to C:\Users\Elizabeth\AppData\Roaming\.minecraft\crash-reports\crash-2013-03-16_09.37.21-client.txt - Please include a copy of that file (Not &lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt; screen!) &lt;span class=&quot;code-keyword&quot;&gt;if&lt;/span&gt; you report &lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt; crash to anyone; without it, they will not be able to help fix the crash :(



--- BEGIN ERROR REPORT 71a5d7c3 --------
Full report at:
C:\Users\Elizabeth\AppData\Roaming\.minecraft\crash-reports\crash-2013-03-16_09.37.21-client.txt
Please show that file to Mojang, NOT just &lt;span class=&quot;code-keyword&quot;&gt;this&lt;/span&gt; screen!

Generated 3/16/13 9:37 AM

-- Head --
Stacktrace:
	at ajn.h(SourceFile:45)
	at ajn.&amp;lt;init&amp;gt;(SourceFile:31)
	at ajj.&amp;lt;init&amp;gt;(SourceFile:16)
	at ajk.a(SourceFile:83)
	at net.minecraft.client.Minecraft.a(SourceFile:1361)
	at axo.e(SourceFile:166)
	at axo.a(SourceFile:131)
	at axl.a(SourceFile:72)
	at axl.d(SourceFile:127)
	at axl.m(SourceFile:111)

-- Affected screen --
Details:
	Screen name: bjz
Stacktrace:
	at net.minecraft.client.Minecraft.l(SourceFile:1076)
	at net.minecraft.client.Minecraft.K(SourceFile:572)
	at net.minecraft.client.Minecraft.run(SourceFile:524)
	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: 1.5
	Operating &lt;span class=&quot;code-object&quot;&gt;System&lt;/span&gt;: Windows 7 (x86) version 6.1
	Java Version: 1.7.0_09, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 469264624 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: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	LWJGL: 2.4.2
	OpenGL: ATI Radeon HD 5800 Series GL version 4.2.12002 Compatibility Profile Context 9.12.0.0, ATI Technologies Inc.
	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;

java.lang.RuntimeException: Failed to check session lock, aborting
	at ajn.h(SourceFile:45)
	at ajn.&amp;lt;init&amp;gt;(SourceFile:31)
	at ajj.&amp;lt;init&amp;gt;(SourceFile:16)
	at ajk.a(SourceFile:83)
	at net.minecraft.client.Minecraft.a(SourceFile:1361)
	at axo.e(SourceFile:166)
	at axo.a(SourceFile:131)
	at axl.a(SourceFile:72)
	at axl.d(SourceFile:127)
	at axl.m(SourceFile:111)
	at net.minecraft.client.Minecraft.l(SourceFile:1076)
	at net.minecraft.client.Minecraft.K(SourceFile:572)
	at net.minecraft.client.Minecraft.run(SourceFile:524)
	at java.lang.&lt;span class=&quot;code-object&quot;&gt;Thread&lt;/span&gt;.run(Unknown Source)
--- END ERROR REPORT 1fc69d68 ----------&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;</description>
                <environment>Java v7 update 9; Windows 7</environment>
        <key id="26820">MC-12085</key>
            <summary>Updating Screen Events - Can&apos;t play single player worlds after redstone update</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="seemsfamiliar">Elizabeth Laws</reporter>
                        <labels>
                            <label>crash</label>
                            <label>redstone</label>
                    </labels>
                <created>Sat, 16 Mar 2013 15:48:36 +0100</created>
                <updated>Thu, 7 May 2015 02:48:28 +0200</updated>
                            <resolved>Sat, 16 Mar 2013 17:14:48 +0100</resolved>
                                    <version>Minecraft 1.5</version>
                                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                            <comments>
                            <comment id="54092" author="bljat" created="Sat, 16 Mar 2013 17:14:48 +0100"  >&lt;p&gt;Duplicate of &lt;a href=&quot;https://bugs.mojang.com/browse/MC-10167&quot; title=&quot;Failed to check session lock, aborting&quot; class=&quot;issue-link&quot; data-issue-key=&quot;MC-10167&quot;&gt;&lt;del&gt;MC-10167&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</comment>
                            <comment id="54063" author="kumasasa" created="Sat, 16 Mar 2013 15:59:04 +0100"  >&lt;p&gt;Your Java is outdated, please &lt;a href=&quot;http://www.java.com/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;update&lt;/a&gt; to the latest version 1.7 Update 17.&lt;/p&gt;

&lt;p&gt;Please check / delete the file &lt;tt&gt;%appdata%\.minecraft\saves\&amp;lt;worldname&amp;gt;\session.lock&lt;/tt&gt; - maybe that file is hanging around and cannot be deleted or cannot be created (no read/write access rights to that directory ?)&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10102">
                    <name>Duplicate</name>
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                                        <issuelink>
            <issuekey id="24039">MC-10167</issuekey>
        </issuelink>
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                <attachments>
                            <attachment id="25156" name="crash-2013-03-16_09.24.06-client.txt" size="2354" author="seemsfamiliar" created="Sat, 16 Mar 2013 15:48:36 +0100"/>
                            <attachment id="25157" name="crash-2013-03-16_09.34.00-client.txt" size="2344" author="seemsfamiliar" created="Sat, 16 Mar 2013 15:48:36 +0100"/>
                            <attachment id="25158" name="crash-2013-03-16_09.37.21-client.txt" size="2339" author="seemsfamiliar" created="Sat, 16 Mar 2013 15:48:36 +0100"/>
                            <attachment id="25159" name="crash-2013-03-16_09.43.52-client.txt" size="2352" author="seemsfamiliar" created="Sat, 16 Mar 2013 15:48:36 +0100"/>
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