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https://issues.apache.org/jira/browse/GROOVY-9763?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eric Milles updated GROOVY-9763:
--------------------------------
Fix Version/s: 2.5.16
> Regression in groovyc 3.0 and 4.0 and Compile static with generic static
> method in trait
> ----------------------------------------------------------------------------------------
>
> Key: GROOVY-9763
> URL: https://issues.apache.org/jira/browse/GROOVY-9763
> Project: Groovy
> Issue Type: Bug
> Components: Compiler, Static compilation, Static Type Checker
> Affects Versions: 4.0.0-alpha-1, 3.0.6
> Reporter: Arthur Sengileyev
> Assignee: Eric Milles
> Priority: Major
> Fix For: 3.0.7, 4.0.0-alpha-2, 2.5.16
>
> Time Spent: 50m
> Remaining Estimate: 0h
>
> After upgrading to groovy 3.0 this code fails to compile (can't pass type
> checker).
> {code:java}
> import groovy.transform.CompileStatic
> @CompileStatic
> trait StaticTrait {
> static <T> T wrapClosure(Closure<T> callable) {
> callable()
> }
> }
> class ClassWithTrait implements StaticTrait {}
> @CompileStatic
> class ClassCaller {
> void call() {
> ClassWithTrait.wrapClosure {
> println("fails to compile")
> 0
> }
> }
> }
> new ClassCaller().call()
> {code}
> Error output:
> {code:java}
> % groovyc test1.groovy
> org.codehaus.groovy.control.MultipleCompilationErrorsException: startup
> failed:
> test1.groovy: 15: [Static type checking] - Cannot find matching method
> ClassWithTrait#wrapClosure(groovy.lang.Closure <java.lang.Integer>). Please
> check if the declared type is correct and if the method exists.
> @ line 15, column 9.
> ClassWithTrait.wrapClosure {
> ^
> 1 error {code}
> It compiles fine with 2.5.13.
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