if (fileName.endsWith(SYMBOLSC_FILENAME)) { return buffer; }
        protected byte[] updateBuffer(byte[] buffer) throws IOException {            String fileName = getFile().getFilename();            if (fileName.endsWith(SYMBOLSC_FILENAME)) {                return buffer;            }            prolog = null;            if (enableSymbols) {                if (SYMBOLS_FILENAMES.contains(fileName) == false) {                    JavaScriptRepositoryServlet.this                            .reloadSymbols(getRepository());                }            }            String content = new String(buffer, getInputCharset());            if (canSkipSpace()) {                content = SourceFilter.filterSkipSpaces(content);            }            return content.getBytes(getOuputCharset());        }