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From "Ryan Vanderwerf (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GROOVY-9069) assignment in map by named index causes casting error
Date Mon, 08 Apr 2019 14:42:00 GMT

    [ https://issues.apache.org/jira/browse/GROOVY-9069?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16812479#comment-16812479
] 

Ryan Vanderwerf commented on GROOVY-9069:
-----------------------------------------

ok I'll make a standalone example soon that replicats this and put it here. 

> assignment in map by named index causes casting error
> -----------------------------------------------------
>
>                 Key: GROOVY-9069
>                 URL: https://issues.apache.org/jira/browse/GROOVY-9069
>             Project: Groovy
>          Issue Type: Bug
>          Components: groovy-runtime
>    Affects Versions: 2.5.6
>         Environment: Linux Mint 19.1
>            Reporter: Ryan Vanderwerf
>            Priority: Major
>
> If I assign a value to a collection via a named index (key name) I get a casting error
like so:
> Failed to convert property value of type {{java.util.LinkedHashMap}} to required type
{{java.util.Map}} for property {{methodConfigNames}}
> Here is the code in question. This doesn't happen in Groovy 2.4.15. Because Grails 4
is running 2.5.6, many plugins are failing with this error.
> {code:java}
> void setMethodConfigNames(Map<String, Map<String, List<String>>> methodConfigNames)
{
>     methodConfigNames.each { String key, Map<String, List<String>> value
->
>         Map<String, List<ConfigAttribute>> configs = [:]
>         populateMap configs, value
>         methodConfigs[key] = configs // fails
>         //methodConfigs.put(key,configs) // works
>     }
> }
> {code}
> If this could get resolved it would save a lot of plugins from having to be re-released
with the workaround making less confusion about the error. In some cases this works and some
it doesn't. Even though I have @CompileStatic set, the issue happens at runtime.



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