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https://issues.apache.org/jira/browse/GROOVY-7530?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15174884#comment-15174884
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Paul King commented on GROOVY-7530:
-----------------------------------
We use the fix date to record the actual version in which it was fixed not the
target one - unless it is a blocker when the two should coincide.
> disjoint() does not work correctly if objects don't implement Comparable
> ------------------------------------------------------------------------
>
> Key: GROOVY-7530
> URL: https://issues.apache.org/jira/browse/GROOVY-7530
> Project: Groovy
> Issue Type: Bug
> Components: groovy-runtime
> Affects Versions: 2.4.4
> Reporter: Tobias Ahlers
>
> {code:java}
> class Foo {
> private String name
> Foo(String name) {
> this.name = name
> }
> public boolean equals(Object o) {
> if (this == o) return true
> if (o == null || getClass() != o.getClass()) return false
> Foo that = (Foo) o
> return Objects.equals(name, that.name)
> }
> public int hashCode() {
> return Objects.hash(name)
> }
> }
> def a = [new Foo("foo")]
> def b = [new Foo("foo")]
> assert !a.disjoint(b)
> {code}
> If disjoint() is used on a list with objects not implementing Comparable the
> wrong result is returned.
> intersect() shows the same wrong behavior.
> It's looks like the NumberAwareComparator not implementing the equals case as
> of commit 286532c is the problem.
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