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Posted to notifications@groovy.apache.org by "Eric Milles (Jira)" <ji...@apache.org> on 2022/02/16 20:20:00 UTC
[jira] [Commented] (GROOVY-10494) Groovy 4 can not compile super.foo with generic interface method
[ https://issues.apache.org/jira/browse/GROOVY-10494?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17493483#comment-17493483 ]
Eric Milles commented on GROOVY-10494:
--------------------------------------
If you move the class {{IService}} to java, does the error subside? Default interface methods convert the interface to a trait, which has different semantics. I want to fix this for Groovy 5, but for now...
> Groovy 4 can not compile super.foo with generic interface method
> ----------------------------------------------------------------
>
> Key: GROOVY-10494
> URL: https://issues.apache.org/jira/browse/GROOVY-10494
> Project: Groovy
> Issue Type: Bug
> Affects Versions: 4.0.0
> Reporter: Xiaoguang Wang
> Assignee: Eric Milles
> Priority: Major
>
> {code:java}
> package com.company.test
> import groovy.transform.CompileStatic
> @CompileStatic
> interface IService<T> {
> default void save(T entity) {
> System.out.println(entity);
> }
> }
> @CompileStatic
> interface IServiceString {
> default void save(String entity) {
> System.out.println(entity);
> }
> }
> @CompileStatic
> class TestGenericGroovy implements IService<String> {
> void save(String entity) {
> // IService<String>.super.save(entity) // works
> super.save(entity) // doesn't work: Groovyc: [Static type checking] - Abstract method save(T) cannot be called directly
> }
> static void main(String[] args) {
> new TestGenericGroovy().save("test")
> }
> }
> {code}
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