return java.util.Collections.emptyList();
        }

        // Minimal implementations for other required methods
        @Override
        public void addCookie(jakarta.servlet.http.Cookie cookie) {
        }

        @Override
        public boolean containsHeader(String name) {
            return false;
        }

        @Override

            writer.flush();
            return stringWriter.toString();
        }

        // Minimal implementations for other required methods
        @Override
        public void addCookie(jakarta.servlet.http.Cookie cookie) {
        }

        @Override
        public boolean containsHeader(String name) {
            return headers.containsKey(name);
        }

        @Override

    // Helper method to create mock HttpServletResponse
    private HttpServletResponse createMockHttpServletResponse() {
        return new HttpServletResponse() {
            @Override
            public void addCookie(jakarta.servlet.http.Cookie cookie) {
            }

            @Override
            public boolean containsHeader(String name) {
                return false;
            }

            @Override

    }

    // Helper method to create mock HttpServletResponse
    private HttpServletResponse createMockResponse() {
        return new HttpServletResponse() {
            @Override
            public void addCookie(jakarta.servlet.http.Cookie cookie) {
            }

            @Override
            public boolean containsHeader(String name) {
                return false;
            }

            @Override