> For the complete documentation index, see [llms.txt](https://mariadb.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mariadb.com/docs/release-notes/connectors/java/3.1/3.1.2.md).

# Connector/J 3.1.2 Release Notes

Release notes for MariaDB Connector/J 3.1.2, a Stable (GA) release published 24 January 2023.

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<p align="center">The most recent release of <a href="/docs/connectors/mariadb-connector-j.md">MariaDB Connector/J</a> is: <a href="/docs/release-notes/connectors/java/4.0/4.0.0.md"><strong>4.0.0</strong></a></p>

<p align="center"><a href="https://mariadb.com/downloads/connectors/connectors-data-access/java8-connector" class="button primary">Download Connector/J 4.0.0</a></p>
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[Download](https://mariadb.com/downloads/connectors/connectors-data-access/java8-connector) | **Release Notes** | [Changelog](/docs/release-notes/connectors/java/changelogs/3.1/3.1.2.md) | [About MariaDB Connector/J](/docs/connectors/mariadb-connector-j/about-mariadb-connector-j.md)

**Release date:** 24 Jan 2023

MariaDB Connector/J 3.1.2 is a [***Stable***](/docs/release-notes/community-server/about/release-criteria.md) ***(GA)*** release.

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**For an overview of MariaDB Connector/J see the** [**About MariaDB Connector/J**](/docs/connectors/mariadb-connector-j/about-mariadb-connector-j.md) **page**
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## Notable Changes

* [CONJ-1042](https://jira.mariadb.org/browse/CONJ-1042) fix DatabaseMetaData.getColumns() on old server version (< MySQL 5.6.4 and < [MariaDB 5.3.0](/docs/release-notes/community-server/old-releases/5.3/5.3.0.md))

## Bugs fixed

* [CONJ-1040](https://jira.mariadb.org/browse/CONJ-1040) possible ConcurrentModificationException when parsing properties when connecting
* [CONJ-1041](https://jira.mariadb.org/browse/CONJ-1041) possible ArrayIndexOutOfBoundsException when writing a parameter to socket pre-buffer when pre-buffer is exactly 16M

## Changelog

For a complete list of changes made in MariaDB Connector/J 3.1.2, with links to detailed information on each push, see the [changelog](/docs/release-notes/connectors/java/changelogs/3.1/3.1.2.md).

<sub>*This page is: Copyright © 2026 MariaDB. All rights reserved.*</sub>

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