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Posted to notifications@groovy.apache.org by "Eric Milles (Jira)" <ji...@apache.org> on 2022/07/02 14:46:00 UTC

[jira] [Created] (GROOVY-10675) Covariant override method regression

Eric Milles created GROOVY-10675:
------------------------------------

             Summary: Covariant override method regression
                 Key: GROOVY-10675
                 URL: https://issues.apache.org/jira/browse/GROOVY-10675
             Project: Groovy
          Issue Type: Bug
    Affects Versions: 5.0.0-alpha-1, 4.0.4
            Reporter: Eric Milles
            Assignee: Eric Milles


Consider the following:
{code:groovy}
@FunctionalInterface
interface A<I, O> {
    O apply(I in)
}
interface B<X, Y> extends A<X, Y> {
}
class C implements B<Number, String> {
    @Override String apply(Number n) { '' }
}
{code}

Error ""Method 'apply' from class 'C' does not override method from its superclass or interfaces but is annotated with @Override."



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