Oracle Universal Connection Pool (UCP), a new database feature included in Oracle Database 11g Release 1 and Oracle Database 11g Release 2 works with any Java based connections, e.g., JDBC, JCA, LDAP. This is packaged as ucp.jar and should be included in the CLASSPATH.
1. Unlike Implicit Connection Cache, UCP is not co-located with the JDBC driver, as it pools all types of connections.
2. UCP supports any database (specific adapter), any application server (pluggable), and stand-alone deployment (JDBC, Tomcat, Toplink/EclipseLink, etc).
3. UCP interacts with the driver/resource tier to create connections.
4. UCP integrates seamlessly with RAC, Data Guard, and furnish fast Connection Failover, Runtime Connection Load Balancing, Workload Management (WLM), Connection Affinity, and XA Affinity.
Oracle Database 12c Release 1 (12.1.0.1.0) UCP Download
 ucp.jar (583,371 bytes) - Universal Connection Pool classes for use with JDK 6 and JDK 7
ucpdemos.jar (104,825 bytes) - Universal Connection Pool demos and code samples, sample logging configurations,and a quick-start toolkit for Fast Connection Failover.
README
Oracle Database 11g Release 2 (11.2.0.3) UCP Download
ucp.jar - Classes to be included in the CLASSPATH for the universal connection pooling features
ucpdemos.jar - contains sample connection pooling programs
UCP_javadoc.zip - Universal Connection Pool Java API Reference, 11g Release 2
README
Oracle Database 11g Release 2 (11.2.0.2) UCP Download
ucp.jar - Classes to be included in the CLASSPATH for the universal connection pooling features
ucpdemos.jar - contains sample connection pooling programs
UCP_javadoc.zip - Universal Connection Pool Java API Reference, 11g Release 2
README
Oracle Database 11g Release 2 (11.2.0.1.0) UCP Download
ucp.jar - Classes to be included in the CLASSPATH for the universal connection pooling features
ucpdemos.jar - contains sample connection pooling programs
UCP_javadoc.zip - Universal Connection Pool Java API Reference, 11g Release 2
README
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