容器忽略isErrorPage =“false”

Getting to the point, I have .jsp page and error page, well if there is something goes wrong with the first one, the error page should turn up then, now i don't want the first page to redirect to the error page anymore, by assigning false to isErrorPage attribute at the error page, the first page should display that stupid exception trace, however the first page keeps redirecting to the error page, here is my simple Error page code : Getting to the point, I have .jsp page and erro