[jira] [Commented] (GROOVY-10792) Declared generic parameter on method not transferred to Closure

["Eric Milles (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/GROOVY-10792?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17624008#comment-17624008 ] 

Eric Milles commented on GROOVY-10792:
--------------------------------------

Even {{Closure<Boolean>}} fails:
{code:groovy}
void proc(Closure<Boolean> c) {
  boolean result = c().booleanValue()
  assert !result
}
def list = []
proc {
  list
}
{code}

"No signature of method: java.util.ArrayList.booleanValue() is applicable ..."

> Declared generic parameter on method not transferred to Closure
> ---------------------------------------------------------------
>
>                 Key: GROOVY-10792
>                 URL: https://issues.apache.org/jira/browse/GROOVY-10792
>             Project: Groovy
>          Issue Type: Bug
>          Components: Compiler
>    Affects Versions: 4.0.6
>            Reporter: Christopher Smith
>            Priority: Minor
>
> This is probably a duplicate, but I'm not sure which of.
> I'm using Awaitility's {{until(Callable<Boolean>)}} and passing it a closure:
> {code:groovy}
> List<String> buffer = []
> ...
> await().until { buffer }
> {code}
> Expected behavior: {{buffer}} is coerced to a boolean using Groovy truth.
> Actual behavior: 
> {code}
> java.lang.ClassCastException: class java.util.ArrayList cannot be cast to class java.lang.Boolean
> {code}



--
This message was sent by Atlassian Jira
(v8.20.10#820010)