[jira] [Updated] (GROOVY-10670) Cannot resolve type in the presence of use-site contravariance

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

     [ https://issues.apache.org/jira/browse/GROOVY-10670?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eric Milles updated GROOVY-10670:
---------------------------------
    Priority: Minor  (was: Major)

> Cannot resolve type in the presence of use-site contravariance
> --------------------------------------------------------------
>
>                 Key: GROOVY-10670
>                 URL: https://issues.apache.org/jira/browse/GROOVY-10670
>             Project: Groovy
>          Issue Type: Bug
>          Components: Static compilation, Static Type Checker
>    Affects Versions: 4.0.3
>            Reporter: Stefanos Chaliasos
>            Assignee: Eric Milles
>            Priority: Minor
>
> I have the following Groovy program.
>  
> {code:groovy}
> class Main {
>   static final Bar<? super Short> bar = new Bar<Short>((Short) -94)
>   static final short foo = Main.bar.x
> }
> class Bar<P> {
>   public final P x
>   public Bar(P x) { 
>     this.x = x 
>   }
> }
> {code}
>  
> h3. Actual Behavior
> The program does not compile, and I get the following error.
> {code:java}
> org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
> Main.groovy: 5: [Static type checking] - Cannot assign value of type java.lang.Object to variable of type short
> @ line 5, column 28.
> static final short foo = Main.bar.x
> ^
> 1 error
> {code}
> h3. Expected Behavior
> Compile successfully.
> h3. Comment
> Note that the equivalent Java program is accepted by javac.
> Tested against 4.0.3 and master (commit: 2e82c9f5bd6201ed4724b26714275f4cef9df6e8).



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