resin报告`' is an unknown error page.是怎么回事？

代码如下：
  Class.forName("oracle.jdbc.driver.OracleDriver");
  String db_host = "192.168.157.128";
  String db_sid = "orcl";
  String dburl = "jdbc:oracle:thin:@(description=(address=(protocol=tcp)(host=" + db_host + ")(port=1521))(connect_data=(sid=" + db_sid + ")))";
  Connection conn = DriverManager.getConnection(dburl,"aaa","aaa");
  Statement st = conn.createStatement();   
    

resin报告`' is an unknown error page.
  是不是没有配置错误页面？错误页面应该怎么配置呢？

------解决方法--------------------------------------------------------
把由DW生成的errorpage=“”去掉