双 Java Stream 在需要时不会离开

Question

Here is my problem.

public LinkedHashSet<Quiz> findAllQuizByCompanyAndCategory(List<QuizCompany> quizList, String quizCategoryId) {
    int i = 1;
    return hibernateQuizJpaRepository
                 .findAllByCategorySetContaining(new HibernateQuizCategory(quizCategoryId))
                 .stream()
                 .filter(current -> quizList.stream()
                 .anyMatch(quiz -> Objects.equals(current.getId(), quiz.getQuizId())))
                 .map(HibernateQuiz::toQuiz)
                 .collect(Collectors.toCollection(LinkedHashSet::new));
 }

As you can see on the screen the quizId and the id are the same on the anymatch. But it will never enter in the map. Does anyone have an idea why?

Removed breakpoints because the issue has been solved

Answer 1

Try to use String.intern on

    current.getId().intern() 

and

  quiz.getQuizId().intern()