[GROOVY-9963] Generic type of field is not instantiated

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0.0-alpha-3, 3.0.11, 2.5.19
• Component/s: Static Type Checker
• Assignee: Eric Milles
• Reporter: Thodoris Sotiropoulos
• Created: 03/Mar/21 21:32
• Updated: 06/Sep/22 14:18
• Resolved: 07/Mar/21 01:34

Description

I have the following program

class A<T> {
  T x;
  A(T x) {
    this.x = x;
  }
}

public class Main {
  public static void main(String[] args) {
    bar((new A<>("")).x);
  }
  public static void bar(String x) {}
}

Actual Behaviour

I get the following compile-time error

org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
test.groovy: 11: [Static type checking] - Cannot find matching method Main#bar(T). Please check if the declared type is correct and if the method exists.
 @ line 11, column 5.
       bar((new A<>("")).x);
       ^1 error

Expected Behaviour

Compile successfully

 

Tested on: https://github.com/apache/groovy/commit/715c34edc82261544b8715bc2253b0b3f05bdbad