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https://issues.apache.org/jira/browse/GROOVY-9660?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17165203#comment-17165203
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Paul King commented on GROOVY-9660:
-----------------------------------

I added code tags.

> generic type class extend tarit
> -------------------------------
>
>                 Key: GROOVY-9660
>                 URL: https://issues.apache.org/jira/browse/GROOVY-9660
>             Project: Groovy
>          Issue Type: Question
>          Components: Groovy Console
>    Affects Versions: 3.0.5
>         Environment: groovy 3.0.5 + jdk1.8
>            Reporter: zzy
>            Priority: Major
>              Labels: build
>
> *code example :*
> {code}
> trait Data {}
> class TestData implements Data {}
> class AbstractData<D extends Data>{ D data }
> def test = new AbstractData<TestData>()
> {code}
>  
> *when i compile groovy,it compile failed:*
> {noformat}
> 1 compilation error:
> The type TestData is not a valid substitute for the bounded parameter <D 
> extends Data>
>  at line: 7, column: 29
> {noformat} 
> Is this the wrong way to write it?
>  
>  



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