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https://issues.apache.org/jira/browse/GROOVY-10791?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17620639#comment-17620639
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Christopher Smith commented on GROOVY-10791:
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It's a default method on {{Value}}, where {{interface Option extends
Value}}.
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Christopher Smith
> STC doesn't find method reference on superclass
> -----------------------------------------------
>
> Key: GROOVY-10791
> URL: https://issues.apache.org/jira/browse/GROOVY-10791
> Project: Groovy
> Issue Type: Bug
> Components: Static Type Checker
> Affects Versions: 4.0.6
> Reporter: Christopher Smith
> Priority: Major
>
> Java permits method references to specify a subclass in {{ContainingType}},
> but the STC produces an error unless the exact declaring type is supplied.
> {code:groovy}
> @Grab('io.vavr:vavr:0.10.4')
> import io.vavr.control.Option
> Option<String> supply() { Option.of('hello') }
> @groovy.transform.CompileStatic
> void test() {
> println supply().map(Option::toTry)
> // ^ declared on Value
> }
> test()
> {code}
> produces
> {code}
> Failed to find the expected method[toTry(java.lang.String)] in the
> type[io.vavr.control.Option] @ line 8, column 24.
> println supply().map(Option::toTry)
> {code}
> (which also suggests that the STC, not traversing supertypes to find a
> {{::toTry}}, has misinferred the signature).
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