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https://issues.apache.org/jira/browse/GROOVY-7799?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Eric Milles reopened GROOVY-7799:
---------------------------------
> Extended generic types with var args isn't compiled if they contains in
> different files
> ---------------------------------------------------------------------------------------
>
> Key: GROOVY-7799
> URL: https://issues.apache.org/jira/browse/GROOVY-7799
> Project: Groovy
> Issue Type: Bug
> Components: Compiler
> Affects Versions: 2.4.6
> Environment: Oracle JRE 1.8_66
> Reporter: Ilya Kuchmin
> Assignee: Eric Milles
> Priority: Major
> Fix For: 4.0.0-rc-2
>
>
> Hi
> I created two files.
> {code:title=A.groovy|borderStyle=solid}
> package example;
> interface EE {
> }
> interface A<T extends EE> {
> A<T> method(T args)
> A<T> method(T[] args)
> A<T> method(Collection<T> args)
> }
> class AB<T extends EE> implements A<T> {
> @Override
> AB<T> method(T args) {
> return null
> }
> @Override
> AB<T> method(T[] args) {
> return this
> }
> @Override
> AB<T> method(Collection<T> args) {
> return this
> }
> }
> {code}
> {code:title=ABC.groovy|borderStyle=solid}
> package example;
> class ABC<T extends EE> extends AB<T> {}
> {code}
> If you would like get bug that you should compile A.groovy and then compile
> ABC.groovy. For second file you should use compiled classes from file
> A.groovy. For second file compile throw exception:
> {noformat}
> org.codehaus.groovy.control.MultipleCompilationErrorsException: startup
> failed:
> ABC.groovy: 3: Can't have an abstract method in a non-abstract class. The
> class 'example.ABC' must be declared abstract or the method 'example.A
> method(java.lang.Object[])' must be implemented.
> @ line 3, column 1.
> class ABC<T extends EE> extends AB<T> {}
> ^
> 1 error
> {noformat}
> I can remove var args methods or replace "T extends EE" on T. It is
> workaround for compiler. Code will be compiled.
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