PathUtil

    public String getParentPath(final String originalPath) {
        boolean isSplitRequired = true;

        int lastSlashIndex = originalPath.lastIndexOf("/");
        if (lastSlashIndex == -1 && lastSlashIndex == 0) {
            isSplitRequired = false;
        }

        return isSplitRequired ?
                originalPath.substring(0,lastSlashIndex) : originalPath;
    }