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https://issues.apache.org/jira/browse/GROOVY-7480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17141888#comment-17141888
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Paul King commented on GROOVY-7480:
-----------------------------------

Or if you don't need any closure methods that are in conflict, you might be 
able to use DELEGATE_ONLY.

> ClosureMetaClass wrong routing calls logic
> ------------------------------------------
>
>                 Key: GROOVY-7480
>                 URL: https://issues.apache.org/jira/browse/GROOVY-7480
>             Project: Groovy
>          Issue Type: Bug
>          Components: groovy-runtime
>    Affects Versions: 2.4.2
>            Reporter: Paolo Piersanti
>            Priority: Major
>
> Setting up the resolve strategy to {{Closure.DELEGATE_FIRST}} does not
> get the delegate looked up at first. For instance:
> {code}
> target = 'aTarget'
> c = new GroovyShell().evaluate("{ -> leftShift('*') }");
> c.resolveStrategy = Closure.DELEGATE_FIRST
> c.delegate = target
> c.call() 
> {code}
> results in:
> {noformat}
> groovy.lang.MissingMethodException: No signature of method:
> Script1$_run_closure1.doCall() is applicable for argument types:
> (java.lang.String) values: [*]
> Possible solutions: doCall(), findAll(), findAll(),
> isCase(java.lang.Object), isCase(java.lang.Object)
>     at Script1$_run_closure1.doCall(Script1.groovy:1)
>     at ConsoleScript33.run(ConsoleScript33:5) 
> {noformat}



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