MyEclipse10エラー：FilterConfigをタイプに解決できません

Myeclipse10 Error Filterconfig Cannot Be Resolved Type

package servlet import java.io.IOException import javax.servlet.Filter import javax.servlet.FilterChain import javax.servlet.FilterConfig import javax.servlet.ServletException import javax.servlet.ServletRequest import javax.servlet.ServletResponse import javax.servlet.http.HttpServletRequest import javax.servlet.http.HttpServletResponse import javax.servlet.http.HttpSession public class LogFilter implements Filter{ private FilterConfig config @Override public void destroy() { // TODO Auto-generated method stub } /* * Filter core processing * */ @Override public void doFilter(ServletRequest req, ServletResponse rep, FilterChain filc) throws IOException, ServletException { HttpServletRequest request=(HttpServletRequest) req HttpServletResponse response=(HttpServletResponse) rep HttpSession session=request.getSession() / / If the session has logined, it proves that the filtering is successful System.out.println('Filtering...') if(session.getAttribute('logined')!=null) { filc.doFilter(req, rep) } else response.sendRedirect('AdminLogin.jsp') } @Override public void init(FilterConfig config) throws ServletException { this.config=config } }