Пишет:
Вызов метода fireEventUserChanged(String, long, int) должен быть расположен перед вызовом метода fireEventShowDeletedUsers().
Вывод такой на экран:
All users:
	User{name='Ivanov', id=123, level=1}
	User{name='Petrov', id=125, level=1}
	User{name='Petrov', id=124, level=2}
	User{name='Sidorov', id=126, level=2}
===================================================
All deleted users:
===================================================

Process finished with exit code 0