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2
content/help/faq.html
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Tomcat is reporting memory leaks caused by some class in Apache POI which uses ThreadLocal
</h2>
<div class="section">
<p>Apache POI uses Java <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/ThreadLocal.html">ThreadLocals</a>
<p>Apache POI uses Java <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/ThreadLocal.html">ThreadLocals</a>
in order to cache some data when Apache POI is used in a multi-threading environment (see also the FAQ about thread-safety above!)
</p>
<p>WebServers like Tomcat use thread-pooling to re-use threads to avoid the cost of frequent thread-startup and shutdown.

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content/related-projects.html
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@ -227,6 +227,20 @@ document.write("Last Published: " + document.lastModified);
the alert email component.
</p>
<a name="Apache+Linkis"></a>
<h3 class="boxed">Apache Linkis</h3>
<p>
<a href="https://linkis.apache.org/">Apache Linkis</a> is a computation middleware layer.
The linkis-storage component has an Excel read capability built using Apache Poi.
</p>
<a name="Apache+Seatunnel"></a>
<h3 class="boxed">Apache Seatunnel</h3>
<p>
<a href="https://seatunnel.apache.org/">Apache Seatunnel</a> is a high-performance, distributed, massive data integration framework.
The seatunnel-connector-spark-email component uses Apache Poi.
</p>
<a name="Worksheet+plugin+for+JSPWiki"></a>
<h3 class="boxed">Worksheet plugin for JSPWiki</h3>
<p>
@ -239,26 +253,18 @@ document.write("Last Published: " + document.lastModified);
<a name="Apache+incubating+projects"></a>
<h2 class="boxed">Apache incubating projects</h2>
<div class="section">
<a name="Apache+Linkis"></a>
<h3 class="boxed">Apache Linkis</h3>
<a name="Apache+Fesod+%28incubating%29"></a>
<h3 class="boxed">Apache Fesod (incubating)</h3>
<p>
<a href="https://linkis.apache.org/">Apache Linkis (incubating)</a> is a computation middleware layer.
The linkis-storage component has an Excel read capability built using Apache Poi.
</p>
<a name="Apache+Seatunnel"></a>
<h3 class="boxed">Apache Seatunnel</h3>
<p>
<a href="https://seatunnel.apache.org/">Apache Seatunnel (incubating)</a> is a high-performance, distributed, massive data integration framework.
The seatunnel-connector-spark-email component uses Apache Poi.
</p>
<a href="https://fesod.apache.org/">Apache Fesod</a> is a high-performance and memory-efficient Java library for reading and writing spreadsheet files, designed to simplify development and ensure reliability.
</p>
<a name="Apache+ODF+Toolkit+%28retired%29"></a>
<h3 class="boxed">Apache ODF Toolkit (retired)</h3>
<p>
<a href="https://incubator.apache.org/projects/odftoolkit.html">Apache ODF Toolkit (incubating)</a> is a set of Java modules that allow programmatic creation, scanning and manipulation of OpenDocument Format (ISO/IEC 26300 == ODF) documents.
See also <a href="https://odftoolkit.org/">new website</a>.
The project has continued with a <a href="https://odftoolkit.org/">new website</a>.
</p>
<a name="Apache+Corinthia+%28retired%29"></a>
<h3 class="boxed">Apache Corinthia (retired)</h3>

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content/versioning.html
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@ -220,6 +220,17 @@ document.write("Last Published: " + document.lastModified);
</p>
</div>
<a name="Commercial+Support"></a>
<h2 class="boxed">Commercial Support</h2>
<div class="section">
<p>
<a href="https://www.herodevs.com/support?utm_source=Referral&amp;utm_medium=link&amp;utm_campaign=PoiReferralLink&amp;utm_id=Poi">HeroDevs</a>
offers security and compatibility support for EOL versions of Apache POI. Find out more about their
<a href="https://www.herodevs.com/support?utm_source=Referral&amp;utm_medium=link&amp;utm_campaign=PoiReferralLink&amp;utm_id=Poi">Never Ending Support options</a>.
</p>
</div>
<a name="Migrating+from+older+versions"></a>
<h2 class="boxed">Migrating from older versions</h2>
<div class="section">