How do I assert equality on two classes without an equals method?

Question

Say I have a class with no equals() method, to which do not have the source. I want to assert equality on two instances of that class.

I can do multiple asserts:

Answer 1

The library Hamcrest 1.3 Utility Matchers has a special matcher that uses reflection instead of equals.

assertThat(obj1, reflectEquals(obj2));