MySQL Connector/J 5.1

Connector/J 5.1 includes support for JDBC-4.0 functionality, including:

* Ease-of-development features including auto-registration with the DriverManager via the service provider mechanism, standardized Connection validity checks and categorized SQLExceptions based on recoverability/retry-ability and class of the underlying error.
* Unwrapping to interfaces that include vendor extensions
* Support for XML processing via JAXP interfaces to DOM, SAX and StAX
* Support for setting per-connection client information (which can be viewed in the comments section of a query via "SHOW PROCESSLIST" on a MySQL server, or can be extended to support custom persistence of the information via a public interface)
* Support for JDBC-4.0 NCHAR, NVARCHAR and NCLOB types