UCPTest.java

import oracle.ucp.UniversalConnectionPoolAdapter;
import oracle.ucp.admin.UniversalConnectionPoolManager;
import oracle.ucp.admin.UniversalConnectionPoolManagerImpl;
import oracle.ucp.jdbc.PoolDataSource;
import oracle.ucp.jdbc.PoolDataSourceFactory;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;

public class UCPTest {
  public static PoolDataSource pds = null;

  public static void main(String[] args) throws Exception {
    String username;
    String password;
    String connString;
    username = "scott";
    password = "tiger";
    connString = "(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=host)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=service)))";
    System.out.println("username: " + username);
    System.out.println("password: " + password);
    System.out.println("conn string: " + connString);

    String jdbcUrl = "jdbc:oracle:thin:@" + connString;
    System.out.println("UCPTest starting...");
    UniversalConnectionPoolManager mgr = UniversalConnectionPoolManagerImpl
        .getUniversalConnectionPoolManager();
    mgr.setJmxEnabled(false);
    pds = PoolDataSourceFactory.getPoolDataSource();
    pds.setMinPoolSize(1);
    pds.setInitialPoolSize(1);
    pds.setMaxPoolSize(3);
    pds.setConnectionFactoryClassName("oracle.jdbc.pool.OracleDataSource");
    pds.setInactiveConnectionTimeout(60);
    pds.setUser(username);
    pds.setPassword(password);
    pds.setURL(jdbcUrl);
    mgr.createConnectionPool((UniversalConnectionPoolAdapter) pds);
    mgr.startConnectionPool(pds.getConnectionPoolName());

    try (Connection con = pds.getConnection()) {
      // con.setAutoCommit(false);
      try (PreparedStatement statement = con
          .prepareStatement("select 1 from dual a");
          ResultSet rs = statement.executeQuery()) {
        System.out.println("Sleeping BEFORE closing the statement");
        Thread.sleep(20000);
        
      }
      // con.commit();
    }
    System.out.println("Sleeping AFTER closing the statement");
    Thread.sleep(20000);

  }

}