Oracle Application 9i Configuration Manual page 29

Connection pooling under Wireless Edition session management supports server
environments that include short-lived threads, long-lived threads (thread pool
model), or a combination of short-lived and long-lived threads. The following
system properties apply to the connection pooling mechanism:
#Minimum number of connections for the connection pool
db.connect.minConnections=5
#Maximum number of connections for the connection pool
db.connect.maxConnections=100
#Incremental allocation of new connections to the connection pool
db.connect.incConnections=1
#Time interval (in seconds) for the watchdog to find and release unused
#connections to the connection pool
repository.session.check.interval=1
To control the maximum idle time for any database
Note:
connection, configure it through the Oracle data server.
JDBC Connection Pooling
Overview 1-13