[jira] [Updated] (GROOVY-8660) Unexpected MethodSelectionException with implicit null argument

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

     [ https://issues.apache.org/jira/browse/GROOVY-8660?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eric Milles updated GROOVY-8660:
--------------------------------
    Labels: varargs  (was: )

> Unexpected MethodSelectionException with implicit null argument
> ---------------------------------------------------------------
>
>                 Key: GROOVY-8660
>                 URL: https://issues.apache.org/jira/browse/GROOVY-8660
>             Project: Groovy
>          Issue Type: Bug
>    Affects Versions: 3.0.0-alpha-2, 2.4.15, 2.5.0
>            Reporter: Daniil Ovchinnikov
>            Priority: Major
>              Labels: varargs
>
> {code:groovy}
> class OnlySingle {
>     def foo(a) { "single param: $a" }
> }
> println new OnlySingle().foo()
> // as expected: 'single param: null'
> class OnlyVararg {
>     def foo(a, ... b) { "vararg param: $a, $b" }
> }
> println new OnlyVararg().foo()
> // as expected: 'MME: No signature of method: OnlyVararg.foo() is applicable for argument types: () values: []'
> class Both {
>     def foo(a) { "single param: $a" }
>     def foo(a, ... b) { "vararg param: $a, $b" }
> }
> println new Both().foo()
> // unexpected:
> // MethodSelectionException: Could not find which method foo() to invoke from this list:
> //  public java.lang.Object Both#foo(java.lang.Object)
> //  public transient java.lang.Object Both#foo(java.lang.Object, [Ljava.lang.Object;)
> {code}
> If the exception is expected then {{OnlyVararg}} case should work too.
> If the exception is unexpected then {{Both#foo(Object)}} should be selected.



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