About Question com.enthuware.ets.scjp.v6.2.532 :

[ETS User]

the question:
If a.equals(b) returns true, b instanceof class_of_a should always be true.

the correct answer was false for the question.

I understand the explaination that anyone can implement equals in a strange way so it's not always true but proper implementation would test instanceof....so it SHOULD equal true.

I would have answered false if the question used the word MUST instead of SHOULD.

[admin]

I see your point how it might cause confusion. Should will be replaced with Must asap.

thank a lot for your feedback.
Paul.