Automatically registering the jdbc driver

A jdbc driver can be registered with the Driver Manager in four ways.
1. Automatic Registration
2. Using Class.forName("DRIVER_NAME")
3. Using property -Djdbc.drivers=DRIVER_NAME
4. Explicit registration using the new operator

Automatic Registration
Starting JDBC 4.0, the DriverManager methods getConnection() and getDrivers() have been enhanced to support automatic registration of the driver using the Service Provider mechanism.

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