final Item item = rootDomainObject.readItemByOID(itemId); final FileItem fileItem = FileItem.readByOID(fileItemId);  item.removeFileItems(fileItem);
fileItem.removeItem(); fileItem.delete();
    public void run(Integer itemId, Integer fileItemId) throws FenixServiceException,            ExcepcaoPersistencia, DomainException, FileManagerException {        final Item item = rootDomainObject.readItemByOID(itemId);        final FileItem fileItem = FileItem.readByOID(fileItemId);        item.removeFileItems(fileItem);        final IFileManager fileManager = FileManagerFactory.getFileManager();        fileManager.deleteFile(fileItem.getExternalStorageIdentification());    }