Return the parent Logger of all the Loggers used by this data source. This should be the Logger farthest from the root Logger that is still an ancestor of all of the Loggers used by this data source. Configuring this Logger will affect all of the log messages generated by the data source. In the worst case, this may be the root Logger.

Returns:  the parent Logger for this data source

Exceptions:

SQLFeatureNotSupportedException

if the data source does not use java.util.logging

Since:  1.7