final List<File> fileList = getAccessibleFileList(baseDir);
        for (final File file : fileList) {
            if (targetFile.equals(file)) {
                return OptionalEntity.of(targetFile);
            }
        }
        return OptionalEntity.empty();
    }

    private List<File> getAccessibleFileList(final File baseDir) {
        final List<File> fileList = new ArrayList<>(