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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[JAVA-378] ArrayIndexOutOfBoundsException at GridFSInputFile.java:353 when using chunksize &gt; 256KB in GridFS</title>
                <link>https://jira.mongodb.org/browse/JAVA-378</link>
                <project id="10006" key="JAVA">Java Driver</project>
                    <description>&lt;p&gt;To produce the exception:&lt;/p&gt;
&lt;hr /&gt;
&lt;p&gt;        Mongo mongo = new Mongo(&quot;localhost&quot;, 27017);&lt;br/&gt;
        GridFS gfs = new GridFS(mongo.getDB(&quot;bucket_test&quot;));&lt;br/&gt;
        GridFSInputFile file = gfs.createFile(&quot;512kb_bucket&quot;);&lt;br/&gt;
        file.setChunkSize(512 * 1024);&lt;br/&gt;
        OutputStream os = file.getOutputStream();&lt;br/&gt;
        for (int i=0; i&amp;lt;32 * 1024 * 1024; i++) &lt;/p&gt;
{
            os.write(&apos;.&apos;);
        }
&lt;p&gt;        os.close();&lt;br/&gt;
        mongo.close();&lt;/p&gt;
&lt;hr /&gt;

&lt;p&gt;It appears that the private _buffer[] in GridFSInputFile.java should be resized as well in the setChunkSize(long _chunkSize) method. Eg.&lt;/p&gt;

&lt;p&gt;&amp;#8212; &lt;br/&gt;
    public void setChunkSize(long _chunkSize) &lt;/p&gt;
{ 
        if (_outputStream != null || _savedChunks) 
            return; 
        this._chunkSize = _chunkSize; 
        _buffer = new byte[(int) _chunkSize]; // ######## Resize here? 
######## 
    }
&lt;p&gt; &lt;br/&gt;
&amp;#8212; &lt;/p&gt;</description>
                <environment></environment>
        <key id="18153">JAVA-378</key>
            <summary>ArrayIndexOutOfBoundsException at GridFSInputFile.java:353 when using chunksize &gt; 256KB in GridFS</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="9">Done</resolution>
                                        <assignee username="jeff.yemin@mongodb.com">Jeffrey Yemin</assignee>
                                    <reporter username="joongonn">Joong Onn</reporter>
                        <labels>
                    </labels>
                <created>Sat, 11 Jun 2011 17:54:56 +0000</created>
                <updated>Mon, 18 Jun 2012 19:36:14 +0000</updated>
                            <resolved>Tue, 15 May 2012 11:24:37 +0000</resolved>
                                    <version>2.6.3</version>
                                    <fixVersion>2.8.0</fixVersion>
                                    <component>API</component>
                                        <votes>2</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="134073" author="jeff.yemin" created="Mon, 18 Jun 2012 19:36:14 +0000"  >&lt;p&gt;Closing for 2.8.0 release.&lt;/p&gt;</comment>
                            <comment id="119131" author="auto" created="Mon, 14 May 2012 15:15:18 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;jyemin&apos;, u&apos;name&apos;: u&apos;Jeff Yemin&apos;, u&apos;email&apos;: u&apos;jeff.yemin@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/JAVA-378&quot; title=&quot;ArrayIndexOutOfBoundsException at GridFSInputFile.java:353 when using chunksize &amp;gt; 256KB in GridFS&quot; class=&quot;issue-link&quot; data-issue-key=&quot;JAVA-378&quot;&gt;&lt;del&gt;JAVA-378&lt;/del&gt;&lt;/a&gt;: Added unit test&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-java-driver/commit/d355b367ce6f6d032468e9ab0d11946612b95a59&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-java-driver/commit/d355b367ce6f6d032468e9ab0d11946612b95a59&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="118829" author="auto" created="Sat, 12 May 2012 19:15:35 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;rgnitz&apos;, u&apos;name&apos;: u&apos;Ryan&apos;, u&apos;email&apos;: u&apos;rgnitz@gmail.com&apos;}
&lt;p&gt;Message: Merge pull request #75 from lesnail/master&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/JAVA-378&quot; title=&quot;ArrayIndexOutOfBoundsException at GridFSInputFile.java:353 when using chunksize &amp;gt; 256KB in GridFS&quot; class=&quot;issue-link&quot; data-issue-key=&quot;JAVA-378&quot;&gt;&lt;del&gt;JAVA-378&lt;/del&gt;&lt;/a&gt; reallocate buffer when changing chunksize of GridFsInputFile&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-java-driver/commit/4bd156ff670c5de64e8be6a461c9c76f3692420e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-java-driver/commit/4bd156ff670c5de64e8be6a461c9c76f3692420e&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="118828" author="auto" created="Sat, 12 May 2012 19:15:33 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;&apos;, u&apos;name&apos;: u&apos;lesnail&apos;, u&apos;email&apos;: u&apos;thomas@scalableminds.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/JAVA-378&quot; title=&quot;ArrayIndexOutOfBoundsException at GridFSInputFile.java:353 when using chunksize &amp;gt; 256KB in GridFS&quot; class=&quot;issue-link&quot; data-issue-key=&quot;JAVA-378&quot;&gt;&lt;del&gt;JAVA-378&lt;/del&gt;&lt;/a&gt; reallocate buffer to correct size when changing chunksize of GridFSInputFile&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-java-driver/commit/cfcd2bfc87aba6554dd948f197a7dc7a9d230def&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-java-driver/commit/cfcd2bfc87aba6554dd948f197a7dc7a9d230def&lt;/a&gt;&lt;/p&gt;</comment>
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