mysqli = new Mysqli(env, host, username, password, db, port, "", driver, url);
mysqli = new Mysqli(env, host, username, password, db, port, "", 0, driver, url);
  private Value internal_oci_connect(Env env,                                     boolean reuseConnection,                                     String username,                                     String password,                                     String db,                                     String charset,                                     int sessionMode)  {    String host = "localhost";    int port = 1521;    String driver = "org.postgresql.Driver";    String url;    if (db.indexOf("//") == 0) {      // db is the url itself: "//db_host[:port]/database_name"      url = "jdbc:oracle:thin:@" + db.substring(2);      url = url.replace('/', ':');    } else {      url = "jdbc:oracle:thin:@" + host + ":" + port + ":" + db;    }    Mysqli mysqli = null;    Object connectionInfo[] = (Object[])env.getSpecialValue("caucho.oracle");    if (reuseConnection && (connectionInfo != null) && url.equals(connectionInfo[0])) {      // Reuse the cached connection      mysqli = (Mysqli) connectionInfo[1];    } else {      mysqli = new Mysqli(env, host, username, password, db, port, "", driver, url);      connectionInfo = new Object[2];      connectionInfo[0] = url;      connectionInfo[1] = mysqli;      env.setSpecialValue("caucho.oracle", connectionInfo);    }    Value value = env.wrapJava(mysqli);    return value;  }