doc2.setHeight(1);
doc2.setCreation(new Date());
doc2.setMimeType("image/gif");
doc2.setAuthor((UserImpl) securityDAO.findUser("adminuser"));
doc2.setContents(FileCopyUtils.copyToByteArray(getClass().getResourceAsStream("/void.gif")));
md.addDocument(doc2);
Document doc = baseDao.find(Document.class, generatedDocIDs.get(0));
assertNull(doc.getDocumentGroup());
Document t = new Document();
t.setId(doc.getId());
md.addDocument(t);