Solutionunvalidated
You can use CollectionUtils.isEqualCollection() from Apache — In case you want to use custom `Comparator`. Tension: Approach with using `Set` is not good.
33f6b37d-eea3-415e-93e0-84f6471244d3
You can use CollectionUtils.isEqualCollection() from Apache — In case you want to use custom Comparator. Tension: Approach with using Set is not good.