public File getSARootDirectory(String saName) throws IOException{ if(getServiceAssembiliesDirectory()==null){
public File getSARootDirectory(String saName) { if (getServiceAssembiliesDirectory() == null) {
    public File getSARootDirectory(String saName) throws IOException{        if(getServiceAssembiliesDirectory()==null){            return null;        }        File result=FileUtil.getDirectoryPath(getServiceAssembiliesDirectory(),saName);        // get the version directory        result=FileVersionUtil.getLatestVersionDirectory(result);        return result;    }