RequestContextFilter.java

package org.springframework.web.filter;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * This class doesn't inherits Filter directly..
 */
public class RequestContextFilter implements Filter {
    @Override
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {

    }

    protected void doFilterInternal(
            HttpServletRequest req, HttpServletResponse res, FilterChain chain)
            throws ServletException, IOException {
    }
}