JAVA-METHOD-CONVERT

@WebFilter(filterName = "HttpMethodOverrideHeaderFilter")
public class HttpMethodOverrideHeaderFilter extends OncePerRequestFilter {

    private static final String X_HTTP_METHOD_OVERRIDE_HEADER = "X-HTTP-Method-Override";

    @Override
    protected void doFilterInternal(HttpServletRequest request, @NotNull HttpServletResponse response, FilterChain filterChain)
            throws ServletException, IOException {
        String headerValue = request.getHeader(X_HTTP_METHOD_OVERRIDE_HEADER);
        if (RequestMethod.POST.name().equals(request.getMethod()) && StringUtils.hasLength(headerValue)) {
            String method = headerValue.toUpperCase(Locale.ENGLISH);
            HttpServletRequest wrapper = new HttpMethodRequestWrapper(request, method);
            filterChain.doFilter(wrapper, response);
        } else {
            filterChain.doFilter(request, response);
        }
    }

    private static class HttpMethodRequestWrapper extends HttpServletRequestWrapper {
        private final String method;

        public HttpMethodRequestWrapper(HttpServletRequest request, String method) {
            super(request);
            this.method = method;
        }

        @Override
        public String getMethod() {
            return this.method;
        }
    }
}