[GROOVY-8960] Can not call a java parameterized type method from groovy with java enum. Compile error

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.5.5
• Fix Version/s: 2.5.15, 3.0.8, 4.0.0-alpha-3
• Component/s: GroovyScriptEngine
• Assignee: Eric Milles
• Reporter: Stuart Adamson
• Created: 17/Jan/19 23:54
• Updated: 02/May/21 09:16
• Resolved: 19/Mar/21 20:52

Description

Java:

import java.io.Serializable;

public class aJavaClass<A extends Serializable>  {

    private aJavaClass(final A inA) {
        System.out.println("Hello");
    }

    public static <A extends Serializable> aJavaClass<A> create(final A inA) {
        return new aJavaClass<>(inA);
    }

    public enum aEnum {
        entry1,
    }
}

Groovy calling class:

import groovy.transform.CompileStatic

import aJavaClass

@CompileStatic
class aCallingGroovyClass {

    static void main(String[] args) {
        aJavaClass.create(aJavaClass.aEnum.entry1)
    }
}

try compiling get:

Error:(10, 9) Groovyc: [Static type checking] - Cannot call <A extends java.io.Serializable> aJavaClass#create(A) with arguments [aJavaClass$aEnum]

Replace the method arg aJavaClass.aEnum.entry1 with non enum, say '1' no quotes, code compiles and runs.