Release Notes for MariaDB Connector/J 3.0.7


MariaDB Connector/J is a lightweight JDBC driver (Type 4) for building applications on top of MariaDB Enterprise with Java 8, Java 11, and Java 17.

This release is compatible with JDBC 4.2.

MariaDB Connector/J 3.0.7 was released on 2022-08-04. This release is of General Availability (GA) maturity.

Notable Changes

  • For compatibility with MariaDB Connector/J 2.7, when LOAD DATA LOCAL INFILE is executed, an InputStream object can be used as the local infile using the Statement.setLocalInfileInputStream() method. (CONJ-986)

  • The PreparedStatement.setObject() method can be called with a value that differs from the specified SQLType, and the value is converted to the corresponding type. (CONJ-994)

    • For example, the value "true" is accepted when the SQLType is Types.BOOLEAN:

      stmt.setObject(1, "true", Types.BOOLEAN);

Issues Fixed

  • When data is read from the ResultSet returned by the DatabaseMetadata.getTypeInfo() method, an error can be raised. (CONJ-993)

    • In previous releases, the following error could be raised:

      java.sql.SQLDataException: integer overflow
  • When the timezone connection parameter is set to UTC, an error is raised. (CONJ-990)

    • In previous releases, the following error could be raised:

      Exception in thread "main" java.sql.SQLSyntaxErrorException: (conn=CONN_ID) Setting configured timezone 'UTC' fail on server.
      Look at to load tz data on server, or set timezone=disable to disable setting client timezone.
         at org.mariadb.jdbc.export.ExceptionFactory.createException(
         at org.mariadb.jdbc.export.ExceptionFactory.create(
         at org.mariadb.jdbc.client.impl.StandardClient.postConnectionQueries(
         at org.mariadb.jdbc.client.impl.StandardClient.<init>(
         at org.mariadb.jdbc.Driver.connect(
         at org.mariadb.jdbc.Driver.connect(
         at org.mariadb.jdbc.Driver.connect(
         at java.sql/java.sql.DriverManager.getConnection(
         at java.sql/java.sql.DriverManager.getConnection(
  • When the ResultSet.getObject() method is used to read a VARBINARY column, a String is returned instead of a byte[]. (CONJ-987)