RandomData randomData = new RandomDataImpl();

            Object[] questions = randomData.nextSample(session.createCriteria(ExamQuestion.class).list(), 10);

            for(Object o : questions)
            {
                ExamQuestion question = (ExamQuestion) o;
                Answer answer = new Answer();
                System.out.println(answer);
                answer.setQuestion(question);
                exam.getAnswers().add(answer);
            }

de.fu_berlin.inf.klausurenportal.entities.Answer@1f
de.fu_berlin.inf.klausurenportal.entities.Answer@1f
de.fu_berlin.inf.klausurenportal.entities.Answer@1f
de.fu_berlin.inf.klausurenportal.entities.Answer@1f
de.fu_berlin.inf.klausurenportal.entities.Answer@1f
de.fu_berlin.inf.klausurenportal.entities.Answer@1f
de.fu_berlin.inf.klausurenportal.entities.Answer@1f
de.fu_berlin.inf.klausurenportal.entities.Answer@1f
de.fu_berlin.inf.klausurenportal.entities.Answer@1f
de.fu_berlin.inf.klausurenportal.entities.Answer@1f