Release Notes for the MariaDB Connector/J 2.4 series
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Release date: 18 Mar 2019
MariaDB Connector/J 2.4.1 is a Stable (GA) release.
[misc] enabled running of 'SHOW ENGINE INNODB STATUS' for error code 1213 (@mtykhenko)
[misc] reduce mutex using select @@innodb_read_only for aurora (@matsuzayaws)
[misc] updating checkstyle version dependency
[misc] permit using SSL on localsocket
[misc] java PID using java 9 ProcessHandle if existing, relying on JNA if present
: addition of option "useMysqlMetadata" to permit MySQL meta compatibility
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Release date: 5 Aug 2019
MariaDB Connector/J 2.4.3 is a Stable (GA) release.
New option blankTableNameMeta permit to have Resultset metadata getTableName methods always return blank in place of returning real table name as JDBC indicate. This is for ease migration from Oracle since Oracle driver always returns an empty string.
: conversion function support for other data types than default MariaDB conversion type
: Permit suppression of result-set metadata getTableName for oracle compatibility
: Saving values using Java 8 LocalTime does not store fractional parts of seconds
: Correcting possible NPE on non-thread safe NumberFormat (logging)
For a complete list of changes made in MariaDB Connector/J 2.4.3, with links to detailed information on each push, see the .
CONJ-682: internal pool correction: when receiving an RST during connection validation, the pool will end up throwing connection timeout exception in place of reusing another connection.
ResultSet#getTime(int, Calendar)CONJ-725: Connection Failure when using PAM authenticated user on 10.4 MariaDB server
CONJ-729: master-slave regression: commit on read-only server Executed only when there is an active transaction on master connection
CONJ-726: removing possible NPE after failover on aurora cluster
For a complete list of changes made in MariaDB Connector/J 2.4.4, with links to detailed information on each push, see the changelog.
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Release date: 17 Jun 2019
MariaDB Connector/J 2.4.2 is a Stable (GA) release.
New option defaultFetchSize to set default fetch size. When set, all statements will be initialized with the indicated fetch size.
: ClassNotFoundException when trying to connect using two-authentication in an OSGI environment.
: Xid format id is unsigned integer, currently sending as signed value.
: autoReconnect=true on Basic Failover doesn't reconnect
: failover might throw an unexpected exception with using "failover"/"sequential" configuration on socket error
For a complete list of changes made in MariaDB Connector/J 2.4.2, with links to detailed information on each push, see the .
CONJ-709: includeThreadDumpInDeadlockExceptions is thrown only if option includeInnodbStatusInDeadlockExceptions is set
CONJ-710: Throw complete stackTrace when having an exception on XA Commands
CONJ-714: Error on connection on galera server when in detached mode.
CONJ-701: typo in error message in SelectResultSet.java
CONJ-679: parse Query when receiving LOAD LOCAL INFILE
| Release Notes | |
Release date: 29 Jan 2019
MariaDB Connector/J 2.4.0 is a (GA) release.
NOTE: MariaDB Connector/J 2.4.0 is fully compatible with the latest release of version 2.3. Further maintenance releases will not be provided for version 2.3.
[] change metadata behaviour: DatabaseMetaData.getDatabaseProductName() nows return "MariaDB"/"MySQL" according to server. This can cause some incompatibilities with some libraries and products that do not yet know Database Type "MariaDB"
CONJ-675: permit multiple alternative authentication methods for the same user (future MariaDB 10.4 feature)
CONJ-678: permit indication of truststore/keystore type (JKS/PKCS12), then not relying on java default type
CONJ-378: GSSAPI: client can provide SPN
CONJ-667: Support MYSQL_TYPE_JSON datatype
: buffering available socket buffer for faster results (specifically for huge resultset)
: improve text performance parsing date/time/timestamp resultset
: ability to always refresh SSL certificate
useReadAheadInput
use a buffered inputSteam that read socket available data. Default: true
keyStoreType
indicate key store type (JKS/PKCS12). default is null, then using java default type.
trustStoreType
indicate trust store type (JKS/PKCS12). default is null, then using java default type
CONJ-646: possible NullPointerException when connection lost to database using aurora configuration with one node
CONJ-672: batch using multi-send can hang when using query timeout
CONJ-544: disable SSL session resumption when using SSL
CONJ-589: correcting Clob.length() for utf8mb4
: datasource connectTimeout URL parameter is not honoured
: Correction on resultset.getObject(columnName, byte[].class) when value is NULL
: old MySQL (<5.5.3) doesn't support utf8mb4, using utf8 on 3 bytes as connection charset by default
: MariaDb bulk threads occupy full cpu(99%) while db connections broken
: abording a connection while fetching a query still does read whole resultset
: SQLSyntaxErrorException when querying on empty column name
: make dumpQueriesOnException = false by default as per documentation
servicePrincipalName
when using GSSAPI authentication, SPN (Service Principal Name) use the server SPN information. When set, connector will use this value, ignoring server information
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This page is: Copyright © 2025 MariaDB. All rights reserved.
This page is: Copyright © 2025 MariaDB. All rights reserved.
This page is: Copyright © 2025 MariaDB. All rights reserved.
This page is: Copyright © 2025 MariaDB. All rights reserved.