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<channel>
    <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-5034] Allow to suspend/resume MongoClient</title>
                <link>https://jira.mongodb.org/browse/JAVA-5034</link>
                <project id="10006" key="JAVA">Java Driver</project>
                    <description>&lt;p&gt;In order to create a checkpoint using &lt;a href=&quot;https://docs.azul.com/core/crac/crac-introduction&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;CRaC&lt;/a&gt; it is required that &lt;b&gt;all sockets&lt;/b&gt; are closed before taking the snapshot.&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/JAVA-3928&quot; title=&quot;Connection pool paused state &quot; class=&quot;issue-link&quot; data-issue-key=&quot;JAVA-3928&quot;&gt;&lt;del&gt;JAVA-3928&lt;/del&gt;&lt;/a&gt; already introduced ways to suspend the &lt;tt&gt;ConnectionPool&lt;/tt&gt; via &lt;tt&gt;invalidate(...)&lt;/tt&gt; and resume if afterwards via `ready`.&lt;/p&gt;

&lt;p&gt;Is there a way to access the &lt;tt&gt;ConnectionPool&lt;/tt&gt; to invoke those methods or maybe even provide some public API as outlined below&lt;/p&gt;

&lt;p/&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;class&lt;/span&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; MongoClientResource &lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;implements&lt;/span&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; org.crac.Resource {&lt;/span&gt;&lt;/pre&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 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;	&lt;/span&gt;&lt;/pre&gt;
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						&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;   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;	MongoClient mongoClient;&lt;/span&gt;&lt;/pre&gt;
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						&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;   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;	&lt;/span&gt;&lt;span style=&quot;color: #008200; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;// ...&lt;/span&gt;&lt;/pre&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&amp;nbsp;&lt;/pre&gt;
			&lt;/td&gt;
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						&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;   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;	&lt;/span&gt;&lt;span style=&quot;color: gray; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;@Override&lt;/span&gt;&lt;/pre&gt;
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						&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;   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;	&lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;public&lt;/span&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; &lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;void&lt;/span&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; beforeCheckpoint(Context&amp;lt;? &lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;extends&lt;/span&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; Resource&amp;gt; context) &lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;throws&lt;/span&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; Exception {&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;   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;		&lt;/span&gt;&lt;span style=&quot;color: #008200; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;// mongoClient -&amp;gt; delegate -&amp;gt; cluster -&amp;gt; server -&amp;gt; connectionPool.invalidate(...)&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
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						&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;   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;		client.suspend(); &lt;/span&gt;&lt;/pre&gt;
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						&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;   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;	}&lt;/span&gt;&lt;/pre&gt;
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				&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;   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;	&lt;/span&gt;&lt;span style=&quot;color: gray; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;@Override&lt;/span&gt;&lt;/pre&gt;
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						&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;   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;	&lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;public&lt;/span&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; &lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;void&lt;/span&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; afterRestore(Context&amp;lt;? &lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;extends&lt;/span&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; Resource&amp;gt; context) &lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;throws&lt;/span&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; Exception {&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&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;   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;		&lt;/span&gt;&lt;span style=&quot;color: #008200; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;// mongoClient -&amp;gt; delegate -&amp;gt; cluster -&amp;gt; server -&amp;gt; connectionPool.ready()&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;   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;		client.resume();&lt;/span&gt;&lt;/pre&gt;
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						&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;   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;	}&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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						&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;}&lt;/span&gt;&lt;/pre&gt;
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&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;

&lt;p&gt;In doing so existing references to the &lt;tt&gt;MongoClient&lt;/tt&gt; as well as obtained &lt;tt&gt;MongoDatabase&lt;/tt&gt;, &lt;tt&gt;MongoCollection&lt;/tt&gt; instances will remain valid, which would not be the case if the client was &lt;em&gt;closed&lt;/em&gt; before the checkpoint and recreated from captured &lt;tt&gt;MongoClientSettings&lt;/tt&gt; in the &lt;tt&gt;afterRestore&lt;/tt&gt; method.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2374598">JAVA-5034</key>
            <summary>Allow to suspend/resume MongoClient</summary>
                <type id="2" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14711&amp;avatarType=issuetype">New Feature</type>
                                            <priority id="10300" iconUrl="https://jira.mongodb.org/images/icons/priorities/medium.svg">Unknown</priority>
                        <status id="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="cstrobl@vmware.com">Christoph Strobl</reporter>
                        <labels>
                    </labels>
                <created>Thu, 22 Jun 2023 13:15:52 +0000</created>
                <updated>Wed, 31 Jan 2024 15:57:55 +0000</updated>
                                                                                                <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="5851917" author="dbeng-pm-bot" created="Fri, 3 Nov 2023 12:00:26 +0000"  >&lt;p&gt;There hasn&apos;t been any recent activity on this ticket, so we&apos;re resolving it. Thanks for reaching out! Please feel free to reopen this ticket if you&apos;re still experiencing the issue, and add a comment if you&apos;re able to provide more information.&lt;/p&gt;</comment>
                            <comment id="5809591" author="dbeng-pm-bot" created="Thu, 26 Oct 2023 13:10:14 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=cstrobl%40vmware.com&quot; class=&quot;user-hover&quot; rel=&quot;cstrobl@vmware.com&quot;&gt;cstrobl@vmware.com&lt;/a&gt;! &lt;a href=&quot;https://jira.mongodb.org/browse/JAVA-5034&quot; title=&quot;Allow to suspend/resume MongoClient&quot; class=&quot;issue-link&quot; data-issue-key=&quot;JAVA-5034&quot;&gt;JAVA-5034&lt;/a&gt; is awaiting your response. &lt;/p&gt;

&lt;p&gt;If this is still an issue for you, please open Jira to review the latest status and provide your feedback. Thanks!&lt;/p&gt;</comment>
                            <comment id="5789178" author="JIRAUSER1273474" created="Wed, 18 Oct 2023 20:27:13 +0000"  >&lt;p&gt;Posting brief summary of our discussion with &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=cstrobl%40vmware.com&quot; class=&quot;user-hover&quot; rel=&quot;cstrobl@vmware.com&quot;&gt;cstrobl@vmware.com&lt;/a&gt;:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;User-generated resources, such as BatchCursor, may retain pinned connections beyond the driver&apos;s control. Hence, the user or framework has to ensure closure of these resources before suspending a MongoClient, ensuring no open sockets persist.&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;Presently, MongoClient lacks the capability to update connection strings or credentials post-restoration. As a result, alternative approaches are explored, including a complete shutdown of MongoClient to recreate it with new settings.&#160;&lt;br/&gt;
The driver also supports credential rotation exclusively for MONGO-AWS which was done here &lt;a href=&quot;https://jira.mongodb.org/browse/JAVA-4310&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;https://jira.mongodb.org/browse/JAVA-4310&lt;/a&gt;. There may be similar support for OIDC, however there&apos;s no fixed timeline yet for when it will be available.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=cstrobl%40vmware.com&quot; class=&quot;user-hover&quot; rel=&quot;cstrobl@vmware.com&quot;&gt;cstrobl@vmware.com&lt;/a&gt; since you&apos;re currently exploring various approaches, including the complete shutdown of MongoClient, we&apos;ll temporarily hold off on the suspension task until the complete client shutdown approach is explored. Please let us know if this does not align.&lt;/p&gt;</comment>
                            <comment id="5585587" author="JIRAUSER1274206" created="Mon, 24 Jul 2023 05:42:40 +0000"  >&lt;p&gt;The short answer is yes.&lt;/p&gt;

&lt;p&gt;However, there are two types of checkpoints we&apos;re talking about.&lt;/p&gt;

&lt;p&gt;An early checkpoint is done after application startup to avoid the boot sequence on resume. So the JVM is not warmed up and the application did not have to process any requests yet.&lt;/p&gt;

&lt;p&gt;A late checkpoint is taken after the JVM has been warmed up by processing/running a set of procedures before capturing the snapshot. This is a controlled process with the only purpose to kick off and then capture jvm runtime optimisations.&#160;&lt;/p&gt;

&lt;p&gt;Either way the user/environment will have to make sure the boot/warmup sequence has completed and no load is applied when sending the command to capture the snapshot.&lt;/p&gt;</comment>
                            <comment id="5584081" author="jeff.yemin" created="Fri, 21 Jul 2023 21:57:41 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=cstrobl%40vmware.com&quot; class=&quot;user-hover&quot; rel=&quot;cstrobl@vmware.com&quot;&gt;cstrobl@vmware.com&lt;/a&gt; do you think it&apos;s safe to assume that at the time the checkpoint is done, there are no in-progress database operations? &lt;/p&gt;</comment>
                            <comment id="5584080" author="jeff.yemin" created="Fri, 21 Jul 2023 21:56:38 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=cstrobl%40vmware.com&quot; class=&quot;user-hover&quot; rel=&quot;cstrobl@vmware.com&quot;&gt;cstrobl@vmware.com&lt;/a&gt; we plan to tackle this in the next few months.&lt;/p&gt;</comment>
                            <comment id="5524842" author="JIRAUSER1268808" created="Mon, 26 Jun 2023 14:44:09 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=cstrobl%40vmware.com&quot; class=&quot;user-hover&quot; rel=&quot;cstrobl@vmware.com&quot;&gt;cstrobl@vmware.com&lt;/a&gt; Hi Christoph, thanks for the request! We will look into potentially prioritizing this when we do our next round of planning for Java in Q3.&lt;/p&gt;</comment>
                            <comment id="5518125" author="dbeng-pm-bot" created="Thu, 22 Jun 2023 13:15:55 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=cstrobl%40vmware.com&quot; class=&quot;user-hover&quot; rel=&quot;cstrobl@vmware.com&quot;&gt;cstrobl@vmware.com&lt;/a&gt;, thank you for reporting this issue! The team will look into it and get back to you soon. &lt;/p&gt;</comment>
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