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Posted to notifications@groovy.apache.org by "Eric Milles (Jira)" <ji...@apache.org> on 2021/04/02 14:41:00 UTC

[jira] [Assigned] (GROOVY-8983) Cannot assign Collection to Array

     [ https://issues.apache.org/jira/browse/GROOVY-8983?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eric Milles reassigned GROOVY-8983:
-----------------------------------

    Assignee: Eric Milles

> Cannot assign Collection to Array
> ---------------------------------
>
>                 Key: GROOVY-8983
>                 URL: https://issues.apache.org/jira/browse/GROOVY-8983
>             Project: Groovy
>          Issue Type: Bug
>          Components: Static Type Checker
>    Affects Versions: 2.5.6
>            Reporter: Daniil Ovchinnikov
>            Assignee: Eric Milles
>            Priority: Major
>
> {code:java}
> Collection<? extends Runnable> foo() {}
> @groovy.transform.CompileStatic
> def usage() {
>   Runnable[] ar = foo() // OK as expected
> }
> @groovy.transform.CompileStatic
> def usage(Collection<? extends Runnable> cr) {
>   Runnable[] ar = cr // [Static type checking] - Cannot assign value of type java.util.Collection <? extends java.lang.Runnable> to variable of type java.lang.Runnable[]
> }
> {code}



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