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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>
    </build-info>


<item>
            <title>[JAVA-2822] com.mongodb.AggregateIterableImpl does not implement toCollection</title>
                <link>https://jira.mongodb.org/browse/JAVA-2822</link>
                <project id="10006" key="JAVA">Java Driver</project>
                    <description>&lt;p&gt;With the 3.6.3 Java driver running on Java 8u141, the AggregateIterableImpl returned from the DBCollection.aggregate(...) method throws a NoSuchMethodError when attempting to run the toCollection method. However, the AggregateIterable interface defines this method.&lt;/p&gt;

&lt;p&gt;Compilation of the class is successful. The error appears to only be at runtime.&lt;/p&gt;

&lt;p&gt;Reflection over the class shows the following methods are available:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;iterator&lt;/li&gt;
	&lt;li&gt;iterator&lt;/li&gt;
	&lt;li&gt;execute&lt;/li&gt;
	&lt;li&gt;first&lt;/li&gt;
	&lt;li&gt;forEach&lt;/li&gt;
	&lt;li&gt;map&lt;/li&gt;
	&lt;li&gt;createBsonDocumentList&lt;/li&gt;
	&lt;li&gt;useCursor&lt;/li&gt;
	&lt;li&gt;into&lt;/li&gt;
	&lt;li&gt;bypassDocumentValidation&lt;/li&gt;
	&lt;li&gt;maxTime&lt;/li&gt;
	&lt;li&gt;batchSize&lt;/li&gt;
	&lt;li&gt;batchSize&lt;/li&gt;
	&lt;li&gt;allowDiskUse&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Example to reproduce:&lt;/p&gt;

&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
		&lt;tbody &gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;AggregateIterable&amp;lt;Document&amp;gt; pipeline = collection.aggregate(stages);&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;pipeline.toCollection();&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;

&lt;p&gt;The actual error is:&lt;/p&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
		&lt;tbody &gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;java.lang.NoSuchMethodError: com.mongodb.client.AggregateIterable.toCollection()V&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;</description>
                <environment></environment>
        <key id="516762">JAVA-2822</key>
            <summary>com.mongodb.AggregateIterableImpl does not implement toCollection</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="13202">Works as Designed</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="brianghig">Brian Ghigiarelli</reporter>
                        <labels>
                    </labels>
                <created>Mon, 26 Mar 2018 17:27:05 +0000</created>
                <updated>Fri, 27 Oct 2023 13:21:08 +0000</updated>
                            <resolved>Mon, 26 Mar 2018 18:37:56 +0000</resolved>
                                    <version>3.6.3</version>
                                                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="1845524" author="jeff.yemin" created="Mon, 26 Mar 2018 18:37:56 +0000"  >&lt;p&gt;OK, thanks for letting us know.  Closing as Works as Designed.&lt;/p&gt;</comment>
                            <comment id="1845413" author="brianghig" created="Mon, 26 Mar 2018 17:43:07 +0000"  >&lt;p&gt;After further investigation, this may have simply been a class loading collision between both 3.2.2 and 3.6.3 JARs.&lt;/p&gt;</comment>
                    </comments>
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