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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-10167] Failed to check session lock, aborting</title>
                <link>https://bugs.mojang.com/browse/MC-10167</link>
                <project id="10400" key="MC">Minecraft: Java Edition</project>
                    <description>&lt;p&gt;&lt;font color=&quot;red&quot;&gt;&lt;br/&gt;
Fix:&lt;br/&gt;
Delete the file &lt;tt&gt;&lt;a href=&quot;http://hopper.minecraft.net/help/finding-minecraft-data-folder&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;minecraft&lt;/a&gt;/saves/&amp;lt;worldname&amp;gt;/session.lock&lt;/tt&gt;&lt;br/&gt;
&lt;br/&gt;
If you need more support, please use the &lt;a href=&quot;http://help.mojang.com/customer/portal/articles/364794-where-can-i-find-more-help-and-technical-support-&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Mojang Support Center&lt;/a&gt;.&lt;/font&gt;&lt;/p&gt;
&lt;hr /&gt;

&lt;p&gt;this is the crash report...&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;// Would you like a cupcake?
&lt;/span&gt;
Time: 22/02/13 4:23 PM
Description: Updating screen events

java.lang.RuntimeException: Failed to check session lock, aborting
	at ahv.h(SourceFile:49)
	at ahv.&amp;lt;init&amp;gt;(SourceFile:35)
	at ahr.&amp;lt;init&amp;gt;(SourceFile:16)
	at ahs.a(SourceFile:78)
	at net.minecraft.client.Minecraft.a(SourceFile:1370)
	at auo.e(SourceFile:157)
	at auo.a(SourceFile:122)
	at aul.a(SourceFile:72)
	at aul.d(SourceFile:127)
	at aul.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 ahv.h(SourceFile:49)
	at ahv.&amp;lt;init&amp;gt;(SourceFile:35)
	at ahr.&amp;lt;init&amp;gt;(SourceFile:16)
	at ahs.a(SourceFile:78)
	at net.minecraft.client.Minecraft.a(SourceFile:1370)
	at auo.e(SourceFile:157)
	at auo.a(SourceFile:122)
	at aul.a(SourceFile:72)
	at aul.d(SourceFile:127)
	at aul.m(SourceFile:111)

-- Affected screen --
Details:
	Screen name: bey
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: 1.4.7
	Operating &lt;span class=&quot;code-object&quot;&gt;System&lt;/span&gt;: Windows 7 (x86) version 6.1
	Java Version: 1.6.0_30, Sun Microsystems Inc.
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Sun Microsystems Inc.
	Memory: 486058432 bytes (463 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: AMD Radeon HD 7640G GL version 4.2.11476 Compatibility Profile Context, 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~~ NullPointerExce&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt;</description>
                <environment></environment>
        <key id="24039">MC-10167</key>
            <summary>Failed to check session lock, aborting</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="blaster1324">Thomas Ariss</reporter>
                        <labels>
                    </labels>
                <created>Fri, 22 Feb 2013 22:34:01 +0100</created>
                <updated>Wed, 28 Oct 2020 02:19:31 +0100</updated>
                            <resolved>Sat, 23 Feb 2013 10:16:47 +0100</resolved>
                                    <version>Minecraft 1.4.7</version>
                    <version>Minecraft 1.5.2</version>
                    <version>Minecraft 1.6.2</version>
                    <version>Minecraft 1.6.4</version>
                    <version>Minecraft 13w42b</version>
                    <version>Minecraft 1.7.2</version>
                                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                            <comments>
                            <comment id="754141" author="logan3" created="Thu, 2 Jul 2020 21:49:26 +0200"  >&lt;p&gt;or your world name is toooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo loooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooong&lt;/p&gt;</comment>
                            <comment id="60086" author="blaster1324" created="Sat, 13 Apr 2013 00:07:50 +0200"  >&lt;p&gt;I fixed it by pulling put the bin file&lt;/p&gt;</comment>
                            <comment id="47187" author="kumasasa" created="Sat, 23 Feb 2013 10:16:04 +0100"  >&lt;p&gt;Delete the file &lt;em&gt;%appdata%\.minecraft\saves\&amp;lt;worldname&amp;gt;\session.lock&lt;/em&gt;&lt;/p&gt;

&lt;p&gt;If you need more support, please use the &lt;a href=&quot;http://help.mojang.com/customer/portal/articles/364794-where-can-i-find-more-help-and-technical-support-&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Mojang Support Center&lt;/a&gt;.&lt;/p&gt;</comment>
                            <comment id="47122" author="kumasasa" created="Fri, 22 Feb 2013 22:41:51 +0100"  >&lt;p&gt;Your Java is severly outdated.&lt;br/&gt;
Please update it at &lt;a href=&quot;http://www.java.com/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://www.java.com/&lt;/a&gt; and report if the issue persists.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10102">
                    <name>Duplicate</name>
                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="24440">MC-10481</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="26820">MC-12085</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="28545">MC-13448</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="31957">MC-16131</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="38148">MC-19432</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="42939">MC-23732</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="43071">MC-23856</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="43710">MC-24423</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="43898">MC-24598</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="45410">MC-25963</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="45916">MC-26360</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="47705">MC-27743</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="48995">MC-28581</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="50725">MC-29632</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="51055">MC-29958</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="51220">MC-30123</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="52558">MC-31316</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="52942">MC-31648</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="53265">MC-31958</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="53387">MC-32076</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="53599">MC-32268</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="54184">MC-32758</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="54259">MC-32831</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="55134">MC-33496</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="55369">MC-33717</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="56125">MC-34437</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="56885">MC-35162</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="57006">MC-35273</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="58230">MC-36241</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="59184">MC-37048</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="59276">MC-37135</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="59480">MC-37331</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="59555">MC-37402</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="59731">MC-37572</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="60361">MC-38153</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="66438">MC-42406</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="77932">MC-51924</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="105770">MC-77183</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="137933">MC-99874</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="138840">MC-100618</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="145079">MC-104491</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="146878">MC-105534</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="150084">MC-107318</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="174633">MC-119094</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="186190">MC-122121</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="196772">MC-127746</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="213473">MC-136690</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="219148">MC-139560</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="254662">MC-158590</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="256928">MC-159641</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="309621">MC-179608</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="378108">MC-201991</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="112948">MCL-3749</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="184355">MCL-8366</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="15395">MC-3380</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="16838">MC-4390</issuekey>
        </issuelink>
                            </inwardlinks>
                                    </issuelinktype>
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                    <name>Relates</name>
                                                                <inwardlinks description="relates to">
                                        <issuelink>
            <issuekey id="151269">MC-108318</issuekey>
        </issuelink>
                            </inwardlinks>
                                    </issuelinktype>
                    </issuelinks>
                <attachments>
                            <attachment id="190191" name="crash-2018-11-17_21.12.01-client.txt" size="3145" author="logan3" created="Sun, 18 Nov 2018 04:12:32 +0100"/>
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