Hi, Thanks in advance. I have JSP page in which i am displaying some records.After some modifications i have to submit that page and page should redirect to the same page. On first time that is clikcing on some menu, there i have given my do(x.do),and which is displaying records perfect, but once i click on submit button or on submitting the page i am getting the following error. "E SRVE0026E: [Servlet Error]-[BeanUtils.populate]: java.lang.IllegalArgumentException: argument type mismatch". I think there is a problem with actionform but i couldnot find. And one more thing, i tried by passing one value throgh query string also, even it is not taking that value.