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Posted to notifications@groovy.apache.org by "Paul King (JIRA)" <ji...@apache.org> on 2017/02/01 23:19:05 UTC

[jira] [Closed] (GROOVY-7912) MissingPropertyException when referencing a static import in a closure's optional parameters

     [ https://issues.apache.org/jira/browse/GROOVY-7912?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Paul King closed GROOVY-7912.
-----------------------------

> MissingPropertyException when referencing a static import in a closure's optional parameters
> --------------------------------------------------------------------------------------------
>
>                 Key: GROOVY-7912
>                 URL: https://issues.apache.org/jira/browse/GROOVY-7912
>             Project: Groovy
>          Issue Type: Bug
>    Affects Versions: 2.4.7
>            Reporter: M. Justin
>            Assignee: Paul King
>            Priority: Minor
>             Fix For: 2.4.8
>
>
> A MissingPropertyException is thrown when calling a closure which references a statically imported field in the value of an optional parameter for a closure.  Likewise, a MissingMethodException is thrown when referencing a statically imported method in the same manner.  This only occurs when calling the method without specifying the optional parameter.
> I have confirmed that this issue does not impact methods with optional parameters.
> The following code illustrates the issue:
> {code}import static java.util.Collections.EMPTY_LIST
> import static java.util.Collections.emptyList
> Closure closureWithStaticImport = { List list = EMPTY_LIST -> }
> Closure closureWithoutStaticImport = { List list = Collections.EMPTY_LIST -> }
> try {
>   // An exception is thrown when the statically imported optional parameter is not specified
>   closureWithStaticImport()
> } catch (MissingPropertyException e) {
>   assert e.message == 'No such property: EMPTY_LIST for class: staticImportTest'
>   e.printStackTrace()
> }
> // No exception is thrown when the optional parameter is specified
> closureWithStaticImport(EMPTY_LIST)
> // No exception is thrown when the optional parameter is not statically imported
> closureWithoutStaticImport()
> void methodWithStaticImport(List list = EMPTY_LIST) {}
> // No exception is thrown when a method's optional parameter uses a static import
> methodWithStaticImport()
> Closure closureWithStaticImportMethod = { List list = emptyList() -> }
> try {
>   // An exception is thrown when the statically imported optional parameter is not specified
>   closureWithStaticImportMethod()
> } catch (MissingMethodException e) {
>   assert e.message == 'No signature of method: staticImportTest.emptyList() is applicable for argument types: () values: []'
>   e.printStackTrace()
> }{code}



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