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MySQL Connector/J 5.1.36 has been released




Hello all,

MySQL Connector/J 5.1.36, a maintenance release of the production 5.1
branch has been released. Connector/J is a Type-IV pure-Java JDBC
driver for MySQL. It is suitable for use with MySQL server versions 5.5
and 5.6.

MySQL Connector Java is available in source and binary form from the
Connector/J download pages at
http://dev.mysql.com/downloads/connector/j/5.1.html

MySQL Connector Java (Commercial) is available for download on the My
Oracle Support (MOS) website. This release will be available on
eDelivery (OSDC) in next month's upload cycle.

As always, we recommend that you check the "CHANGES" file in the
download archive to be aware of changes in behavior that might affect
your application.

MySQL Connector/J 5.1.36 includes the following general bug fixes and
improvements, also available in more detail on
http://dev.mysql.com/doc/relnotes/connector-j/en/news-5-1-36.html :

Changes in MySQL Connector/J 5.1.36 (2015-07-02)

Version 5.1.36 is a maintenance release of the production 5.1
branch. It is suitable for use with MySQL server versions
5.5, and 5.6.

Functionality Added or Changed

  * The files in the Maven Central Repository for each
    Connector/J release have been reorganized and a source
    artifact (*-sources.jar) has been added, for release
    5.1.21 and after. (Bug #20283655, Bug #75335)

Bugs Fixed

  * Results returned by DatabaseMetaData.getCatalogs() were
    not properly sorted by catalog name. (Bug #21215151)

  * A ClassCastException occurred when Connector/J was
    executing a streaming prepared statement in a Fabric
    environment. (Bug #21184949, Bug #77217)

  * Connector/J did not use the character set specified with
    the connection property passwordCharacterEncoding for
    authentication. With this fix, the property is now
    honored. If it is not set, Connector/J uses the value of
    characterEncoding instead; if even that is not set,
    Conenctor/J defaults to UTF-8 for the password's
    encoding. (Bug #20825727)

  * A failover did not occur for a MySQL Fabric connection
    during the failure of a master server. It was because the
    state change of the Fabric connection group was not
    handled properly, which hs been corrected by this fix.
    (Bug #20821888, Bug #75113)

  * When the getDate() and getTime() methods of ResultSet
    were called to retrieve values with fractional seconds, a
    "bad format" error occurred. With this fix, the
    fractional seconds are dropped before the retrieved
    values are converted into a Date or Time object. (Bug
    #20804635)

  * A StringIndexOutOfBoundsException occurred when
    getProcedureColumns() were trying to return ENUM or SET
    type procedures or functions that involved reserved
    words. That was caused by a problem in the parser for the
    functions' or procedures' CREATE statements, which this
    fix corrects. (Bug #20727196)

  * At every connection, Connector/J executed a SHOW
    VARIABLES WHERE statement over a multitude of variables,
    which consumed a lot of time and memory. To improve the
    efficiency of the code, this fix replaces the statement
    with the more efficient SELECT @@variable query and also
    implements some other related changes. (Bug #20408891,
    Bug #75592)

  * getProcedures(), getFunctions(), getProcedureColumns(),
    and getFunctionColumns() returned duplicate results when
    the connection parameter nullCatalogMeansCurrent was set
    to "false." (Bug #19803348)

  * An UnsupportedEncodingException during handshake gave
    rise to a NullPointerException. With this fix, the
    NullPointerException is no longer thrown, and a proper
    error message is provided by Connector/J. (Bug #18758686,
    Bug #72630)

  * When using Connector/J with MySQL Fabric, the
    createGroup() method failed with a ClassCastException.
    (Bug #18719760, Bug #72546)

  * Using Connector/J to connect with non-null user name and
    password to a MySQL Fabric server that had authentication
    disabled resulted in a NullPointerException. (Bug
    #18425861, Bug #72077)

  * The change user functionality in Connector/J was
    dependent on Bug# 70865 of the MySQL server (for releases
    5.5 and later, the server unnecessarily sends a
    plugin_request_packet for every COM_CHANGE_USER packet).
    That dependence made the
    com.mysql.jdbc.jdbc2.optional.MysqlConnectionPoolDataSour
    ce interface fail for server versions or forks that did
    not have the same bug. This fix removes that dependence
    and makes the interface function properly, whether the
    server suffers Bug# 70865 or not. (Bug #17810800, Bug
    #70927)

  * JDBC4MySQLPooledConnection keeps a list of
    statementEventListener instances named
    statementEventListeners, which is used as monitor lock
    whenever the fireStatementEvent() method is called.
    However, because the pooled connection's close() method
    set statementEventListener to be null, if a prepared
    statement was closed after its holding pooled connection
    had already been closed, the subsequent
    fireStatementEvent() call would run into a
    NullPointerException. This fix prevents the problem by
    having JDBC4MySQLPooledConnection initializing
    statementEventListeners properly and never setting it to
    null, thus allowing it to be used all the time as a
    monitor lock. (Bug #16444069, Bug #62452)

Documentation
--------------
Online: http://dev.mysql.com/doc/connector-j/en/index.html

Reporting Bugs
---------------
We welcome and appreciate your feedback and bug reports:
http://bugs.mysql.com/

On Behalf of the MySQL/ORACLE RE Team
Hery Ramilison


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