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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-223] NullPointerException in DBTCPConnector</title>
                <link>https://jira.mongodb.org/browse/JAVA-223</link>
                <project id="10006" key="JAVA">Java Driver</project>
                    <description>&lt;p&gt;After running for some days without problems I just get NullPointerExceptions for every operation.&lt;br/&gt;
I restarted my application (not the server) and the mongo-driver worked again.&lt;/p&gt;

&lt;p&gt;The first error:&lt;br/&gt;
java.lang.NullPointerException: null&lt;br/&gt;
        at com.mongodb.DBTCPConnector$MyPort.get(DBTCPConnector.java:274) ~&lt;span class=&quot;error&quot;&gt;&amp;#91;mongo-java-driver-2.3.jar:na&amp;#93;&lt;/span&gt;&lt;br/&gt;
        at com.mongodb.DBTCPConnector.call(DBTCPConnector.java:205) ~&lt;span class=&quot;error&quot;&gt;&amp;#91;mongo-java-driver-2.3.jar:na&amp;#93;&lt;/span&gt;&lt;br/&gt;
        at com.mongodb.DBApiLayer$MyCollection.__find(DBApiLayer.java:284) ~&lt;span class=&quot;error&quot;&gt;&amp;#91;mongo-java-driver-2.3.jar:na&amp;#93;&lt;/span&gt;&lt;br/&gt;
        at com.mongodb.DB.command(DB.java:152) ~&lt;span class=&quot;error&quot;&gt;&amp;#91;mongo-java-driver-2.3.jar:na&amp;#93;&lt;/span&gt;&lt;br/&gt;
        at com.mongodb.DB.command(DB.java:141) ~&lt;span class=&quot;error&quot;&gt;&amp;#91;mongo-java-driver-2.3.jar:na&amp;#93;&lt;/span&gt;&lt;br/&gt;
        at com.mongodb.DB.getLastError(DB.java:302) ~&lt;span class=&quot;error&quot;&gt;&amp;#91;mongo-java-driver-2.3.jar:na&amp;#93;&lt;/span&gt;&lt;/p&gt;

&lt;p&gt;and afterwards for example:&lt;/p&gt;

&lt;p&gt;Caused by: java.lang.NullPointerException: null&lt;br/&gt;
        at com.mongodb.DBTCPConnector$MyPort.get(DBTCPConnector.java:274) ~&lt;span class=&quot;error&quot;&gt;&amp;#91;mongo-java-driver-2.3.jar:na&amp;#93;&lt;/span&gt;&lt;br/&gt;
        at com.mongodb.DBTCPConnector.call(DBTCPConnector.java:205) ~&lt;span class=&quot;error&quot;&gt;&amp;#91;mongo-java-driver-2.3.jar:na&amp;#93;&lt;/span&gt;&lt;br/&gt;
        at com.mongodb.DBApiLayer$MyCollection.__find(DBApiLayer.java:284) ~&lt;span class=&quot;error&quot;&gt;&amp;#91;mongo-java-driver-2.3.jar:na&amp;#93;&lt;/span&gt;&lt;br/&gt;
        at com.mongodb.DB.command(DB.java:152) ~&lt;span class=&quot;error&quot;&gt;&amp;#91;mongo-java-driver-2.3.jar:na&amp;#93;&lt;/span&gt;&lt;br/&gt;
        at com.mongodb.DBCollection.getCount(DBCollection.java:642) ~&lt;span class=&quot;error&quot;&gt;&amp;#91;mongo-java-driver-2.3.jar:na&amp;#93;&lt;/span&gt;&lt;br/&gt;
        at com.mongodb.DBCollection.getCount(DBCollection.java:616) ~&lt;span class=&quot;error&quot;&gt;&amp;#91;mongo-java-driver-2.3.jar:na&amp;#93;&lt;/span&gt;&lt;br/&gt;
        at com.mongodb.DBCursor.count(DBCursor.java:555) ~&lt;span class=&quot;error&quot;&gt;&amp;#91;mongo-java-driver-2.3.jar:na&amp;#93;&lt;/span&gt;&lt;/p&gt;

&lt;p&gt;java.lang.NullPointerException: null&lt;br/&gt;
        at com.mongodb.DBTCPConnector$MyPort.get(DBTCPConnector.java:274) ~&lt;span class=&quot;error&quot;&gt;&amp;#91;mongo-java-driver-2.3.jar:na&amp;#93;&lt;/span&gt;&lt;br/&gt;
        at com.mongodb.DBTCPConnector.say(DBTCPConnector.java:151) ~&lt;span class=&quot;error&quot;&gt;&amp;#91;mongo-java-driver-2.3.jar:na&amp;#93;&lt;/span&gt;&lt;br/&gt;
        at com.mongodb.DBTCPConnector.say(DBTCPConnector.java:141) ~&lt;span class=&quot;error&quot;&gt;&amp;#91;mongo-java-driver-2.3.jar:na&amp;#93;&lt;/span&gt;&lt;br/&gt;
        at com.mongodb.DBApiLayer$MyCollection.update(DBApiLayer.java:317) ~&lt;span class=&quot;error&quot;&gt;&amp;#91;mongo-java-driver-2.3.jar:na&amp;#93;&lt;/span&gt;&lt;br/&gt;
        at com.mongodb.DBCollection.update(DBCollection.java:112) ~&lt;span class=&quot;error&quot;&gt;&amp;#91;mongo-java-driver-2.3.jar:na&amp;#93;&lt;/span&gt;&lt;/p&gt;
</description>
                <environment>1 server (1.6.4) / Linux</environment>
        <key id="13837">JAVA-223</key>
            <summary>NullPointerException in DBTCPConnector</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="2" iconUrl="https://jira.mongodb.org/images/icons/priorities/critical.svg">Critical - P2</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="eliot">Eliot Horowitz</assignee>
                                    <reporter username="dpeters">Daniel Peters</reporter>
                        <labels>
                    </labels>
                <created>Wed, 1 Dec 2010 10:47:05 +0000</created>
                <updated>Wed, 22 Dec 2010 23:58:14 +0000</updated>
                            <resolved>Wed, 1 Dec 2010 14:32:17 +0000</resolved>
                                    <version>2.3</version>
                                    <fixVersion>2.4</fixVersion>
                                                        <votes>0</votes>
                                    <watches>0</watches>
                                                                                                                <comments>
                            <comment id="20885" author="eliot" created="Wed, 1 Dec 2010 14:32:17 +0000"  >&lt;p&gt;I think this was already fixed in master, but there is a blocking bug so you shouldn&apos;t put master into production.&lt;/p&gt;</comment>
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