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https://issues.apache.org/jira/browse/GROOVY-11381?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Paul King closed GROOVY-11381.
------------------------------

> STC: field and interface default method accessor property
> ---------------------------------------------------------
>
>                 Key: GROOVY-11381
>                 URL: https://issues.apache.org/jira/browse/GROOVY-11381
>             Project: Groovy
>          Issue Type: Bug
>          Components: Static Type Checker
>            Reporter: Eric Milles
>            Assignee: Eric Milles
>            Priority: Major
>             Fix For: 5.0.0-alpha-9
>
>
> Consider the following:
> {code:java}
> package p;
> public interface I {
>   default Number getFoo() { return 42; }
> }
> {code}
> {code:groovy}
> class C implements p.I {
>   private String foo
> }
> @groovy.transform.CompileStatic
> void test(C c) {
>   def foo = c.foo
>   print foo
> }
> test(new C())
> {code}
> This script prints "42" but the inferred type of "c.foo" is String.  Changing 
> "def" to "Number" results in: Cannot assign value of type java.lang.String to 
> variable of type java.lang.Number



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