[jira] [Created] (GROOVY-9763) Regression in groovyc 3.0 and 4.0 and Compile static with generic static method in trait

["Arthur Sengileyev (Jira)" <ji...@apache.org>]

Arthur Sengileyev created GROOVY-9763:
-----------------------------------------

             Summary: 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: 3.0.6, 4.0.0-alpha-1
            Reporter: Arthur Sengileyev


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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