On Solaris 10 and Enterprise Linux 3.0, the Sun bundled Oracle JDBC driver does not allow the creation of a connection. (ID 6247468)

Set the following property on the JDBC connection pool when using the SUN JDBC oracle datasource (com.sun.sql.jdbcx.oracle.OracleDataSource):

<property name="serverType" value="dedicated"/>

The value of the property depends upon the way the Oracle server's listener is configured. If it is configured in the "shared" mode, the above value needs to change to "dedicated".