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    <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>[SERVER-19726] Infinite loop</title>
                <link>https://jira.mongodb.org/browse/SERVER-19726</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The while (cursor.hasNext()) loops indefinitely.   collection.count() == 1520&lt;/p&gt;

&lt;p&gt;	public void queryCollectionAll() {&lt;br/&gt;
		/*NOTE&lt;br/&gt;
		finally to ensure cursor is closed so no leaking*/&lt;br/&gt;
		MongoCollection&amp;lt;Document&amp;gt; collection = database.getCollection(&quot;test&quot;);&lt;br/&gt;
		MongoCursor&amp;lt;Document&amp;gt; cursor = collection.find().iterator();&lt;br/&gt;
		long count= 0;&lt;br/&gt;
		System.out.println(collection.count());&lt;br/&gt;
		try {&lt;br/&gt;
		    while (cursor.hasNext()) &lt;/p&gt;
{
		        count++;
		    }
&lt;p&gt;		} finally &lt;/p&gt;
{
		    cursor.close();
	        System.out.println(&quot;collection.count():&quot;+count);
		}
&lt;p&gt;		&lt;br/&gt;
	}&lt;/p&gt;</description>
                <environment></environment>
        <key id="223875">SERVER-19726</key>
            <summary>Infinite loop</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="-1">Unassigned</assignee>
                                    <reporter username="stanlick">James Scott Stanlick</reporter>
                        <labels>
                    </labels>
                <created>Mon, 3 Aug 2015 17:42:49 +0000</created>
                <updated>Mon, 3 Aug 2015 17:59:25 +0000</updated>
                            <resolved>Mon, 3 Aug 2015 17:54:14 +0000</resolved>
                                                                    <component>Internal Code</component>
                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="995231" author="stanlick" created="Mon, 3 Aug 2015 17:59:25 +0000"  >&lt;p&gt;Duh!  Thanks guys&lt;/p&gt;</comment>
                            <comment id="995227" author="scotthernandez" created="Mon, 3 Aug 2015 17:54:14 +0000"  >&lt;p&gt;As James alluded to, you need to actually iterate the cursor by getting the next item, else your while loop will never end, since you will always have that same next one available.&lt;/p&gt;</comment>
                            <comment id="995220" author="james.wahlin@10gen.com" created="Mon, 3 Aug 2015 17:46:30 +0000"  >&lt;p&gt;Try adding a &lt;tt&gt;cursor.next()&lt;/tt&gt; in your while block. You are checking whether a cursor has more data but not advancing the cursor.&lt;/p&gt;</comment>
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