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Date: Sun, 25 Jun 2017 18:20:02 +0000 (UTC)
From: "John Wagenleitner (JIRA)" <jira@apache.org>
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Subject: [jira] [Resolved] (GROOVY-8237) Invalid type inference when using
 CompileStatic annotation
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archived-at: Sun, 25 Jun 2017 18:20:10 -0000


     [ https://issues.apache.org/jira/browse/GROOVY-8237?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

John Wagenleitner resolved GROOVY-8237.
---------------------------------------
    Resolution: Duplicate

I noted in GROOVY-8220 that it also fails in 2.4.12 so will close this as a duplicate.

> Invalid type inference when using CompileStatic annotation
> ----------------------------------------------------------
>
>                 Key: GROOVY-8237
>                 URL: https://issues.apache.org/jira/browse/GROOVY-8237
>             Project: Groovy
>          Issue Type: Bug
>    Affects Versions: 2.4.12
>            Reporter: paolo di tommaso
>
> With Groovy 2.4.12 the following snippet report an error 
> {code}
> @groovy.transform.CompileStatic
> class Foo {
>   String parse(Reader reader) {
>         if ( reader == null ) {
>           reader = new BufferedReader(reader)
>         }
>          
>         def c 
>         while ((c = reader.read()) != -1) 
>            print c as char
>   }
> }
> new Foo().parse( new StringReader('abc') )
> {code}
> The following exception is thrown 
> {code}
> org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast object 'java.io.StringReader@7a636960' with class 'java.io.StringReader' to class 'java.io.BufferedReader'
> {code}


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