final static String DB_PASSWORD = "<my password>"; // Can also be recup'ed from environment
final static String DB_USER ="<my user>"; // can also be recup'ed from env

String DB_URL = System.getenv("url");
        if (DB_URL == null ) {
          System.out.println("Environment variables url must be set");
          System.exit(1);
        }
    Properties info = new Properties();
    info.put(OracleConnection.CONNECTION_PROPERTY_USER_NAME, DB_USER);
    info.put(OracleConnection.CONNECTION_PROPERTY_PASSWORD, DB_PASSWORD);

    OracleDataSource ods = new OracleDataSource();
    ods.setURL(DB_URL);
    ods.setConnectionProperties(info);