Shriking or Resetting a connection pool

http://docs.oracle.com/cd/E17904_01/apirefs.1111/e13952/pagehelp/JDBCjdbcdatasourcesjdbcdatasourcemonitorstatisticstitle.html

Active Connections Current Count: Active connections are connections in use by an application.

http://docs.oracle.com/cd/E13222_01/wls/docs92/jdbc_admin/manage.html#wp1048129


Force suspending a Data Source:
Suspends a data source that has the health state of Running, including disconnecting all current connection users. All current connections are closed and recreated.

Shrink:
Shrinks the database connection pool in the data source to either the current number of reserved connections or the initial size of the connection pool, which ever is greater.