UCP PoolDataSourceImpl with ConnectionInitializationCallback

我正在尝试使用ConnectionInitializationCallback配置UCP PoolDataSourceImpl。这是我的配置：

private static DataSource createDataSource(Properties properties) throws SQLException, UniversalConnectionPoolException {
    UniversalConnectionPoolManager ucpm        = UniversalConnectionPoolManagerImpl.getUniversalConnectionPoolManager();
    PoolDataSource                 pds         = PoolDataSourceFactory.getPoolDataSource();
    final String                   editionName = properties.getProperty("jdbc.editionName", "ora$base");
    pds.registerConnectionInitializationCallback(new oracle.ucp.jdbc.ConnectionInitializationCallback() {
        public void initialize(Connection connection) throws SQLException {
            LOG.debug("Attempting to set edition to: {}", editionName);
            try (Statement statement = connection.createStatement()) {
                statement.executeUpdate("ALTER SESSION SET EDITION = " + editionName);
            }
            LOG.debug("Edition set to: {}", editionName);
        }
    });
    pds.setConnectionFactoryClassName("oracle.jdbc.pool.OracleDataSource");
    pds.setUser(properties.getProperty("jdbc.username"));
    pds.setPassword(properties.getProperty("jdbc.password"));
    pds.setURL(properties.getProperty("jdbc.url"));
    pds.setConnectionPoolName("demo-pool");
    pds.setInitialPoolSize(3);
    pds.setMaxPoolSize(3);
    pds.setValidateConnectionOnBorrow(true);
    LOG.debug("Created DataSource Pool");
    ucpm.createConnectionPool((UniversalConnectionPoolAdapter)pds);
    ucpm.startConnectionPool("demo-pool");
    return pds;
}

但是，initialize方法从未被调用。我将java 1.7.0_51与以下Oracle jar一起使用：

ojdbc6.jar-v12.1.0.1.0ucp.jar-v12.1.0.0.0

我通过删除对"registerConnectionInitializationCallback"的调用并将其替换为对"registerConnectionLabeling回调"的调用来实现这一点，但据我所知，这将在每次从池中请求连接时（而不是在实际创建连接时）执行ALTER SESSION。

如果能为ConnectionInitializationCallback的工作提供任何帮助，我们将不胜感激。

亲切问候