}

            @Override
            public java.util.Map<String, String> getTrailerFields() {
                return null;
            }

            @Override
            public boolean isTrailerFieldsReady() {
                return false;
            }
        };
    }

    // Helper method to create mock HttpServletResponse
    private HttpServletResponse createMockHttpServletResponse() {

        }

        @Override
        public Map<String, String> getTrailerFields() {
            throw new UnsupportedOperationException();
        }

        @Override
        public boolean isTrailerFieldsReady() {
            throw new UnsupportedOperationException();
        }
    }