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Posted to notifications@groovy.apache.org by "Paul King (JIRA)" <ji...@apache.org> on 2017/09/27 09:37:00 UTC

[jira] [Resolved] (GROOVY-8220) GroovyCastException with CompileStatic

     [ https://issues.apache.org/jira/browse/GROOVY-8220?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paul King resolved GROOVY-8220.
-------------------------------
       Resolution: Fixed
         Assignee: John Wagenleitner
    Fix Version/s: 2.4.13

Thanks for the PR John (merged). I applied yours instead of mine since it was simpler and I haven't found any issues yet. Thanks for spotting the issue Paolo.

> GroovyCastException with CompileStatic
> --------------------------------------
>
>                 Key: GROOVY-8220
>                 URL: https://issues.apache.org/jira/browse/GROOVY-8220
>             Project: Groovy
>          Issue Type: Bug
>    Affects Versions: 2.5.0-beta-1, 2.4.12
>            Reporter: paolo di tommaso
>            Assignee: John Wagenleitner
>             Fix For: 2.4.13
>
>
> {code}
> @groovy.transform.CompileStatic
> class Foo {
>     CharSequence makeEnv( env, StringBuilder result = new StringBuilder() ) {
>         if( env instanceof File ) {
>             env = env.toPath()
>         }
>         if( env instanceof String && env.contains('=') ) {
>             result << 'export ' << env << ';'
>         }
>         return result.toString()
>     }
> }
> assert new Foo().makeEnv('X=1') == 'export X=1;'
> Exception thrown
> org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast object 'X=1' with class 'java.lang.String' to class 'java.lang.Iterable'
> 	at Foo.makeEnv(ConsoleScript5:10)
> 	at Foo.makeEnv(ConsoleScript5:4)
> 	at Foo$makeEnv.call(Unknown Source)
> 	at ConsoleScript5.run(ConsoleScript5:20)
> {code}
> Without CompileStatic it works as expected. 



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