}
        }

        @Override
        void flushOutput() {
            if (shouldForward()) {
                boolean hasContent = !bufferedLogs.isEmpty();
                if (!hasForeground() || statusHasChanged()) {
                    if (needHeaderSeparator || hasContent) {
                        listener.onOutput(spacerLine(lastUpdateTime, category));
                    }

     */
    protected static boolean visitAll(FileSystemMirroringFileTree tree) {
        final MutableBoolean hasContent = new MutableBoolean();
        tree.visit(new FileVisitor() {
            @Override
            public void visitDir(FileVisitDetails dirDetails) {
                dirDetails.getFile();
                hasContent.set(true);
            }

            @Override

        return file;
    }

    private boolean probeCaseSensitive(File file, String content) {
        try {
            File upperCased = new File(file.getPath().toUpperCase(Locale.ROOT));
            return !hasContent(upperCased, content);
        } catch (IOException e) {
            // not fully accurate but a sensible fallback