How to use Groovy Set for unique elements?

Posted by Guy on Stack Overflow See other posts from Stack Overflow or by Guy
Published on 2010-04-29T19:15:58Z Indexed on 2010/04/29 21:57 UTC
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As simple as this must be I still can't understand where am I wrong:

class A {
    boolean equals(o) { true }
}
def s = [new A(), new A()] as Set
assert s.size() == 1 // Assertion failed: actually gives 2

Which method should I override in order to get uniqueness?

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