[GROOVY-10971] STC is looking for the wrong constructor reference

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 5.0.0-alpha-1
• Assignee: Eric Milles
• Reporter: Thodoris Sotiropoulos
• Created: 09/Mar/23 14:28
• Updated: 23/Aug/23 09:11
• Resolved: 12/Apr/23 20:25

Description

I have the following program

class Foo {
  Foo(String d) {}
}

class Main {
  static final void test() {
        def x = java.util.stream.Collectors.groupingBy(Main::m) // works;
        def y = java.util.stream.Collectors.groupingBy(Foo::new) // fails;
  }

  static Foo m(String x) { return null; }
}

Actual behavior

org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
test.groovy: 8: [Static type checking] - Cannot find matching constructor Foo(java.lang.Object)
 @ line 8, column 56.
   .stream.Collectors.groupingBy(Foo::new)
                                 ^

1 error

Expected behavior

Compile successfully

Tested against master (commit: 46722e7147ed529fe8817660617ac6af98ad6f54)

Issue Links

• is related to: GROOVY-10930 STC accepts program although constructor reference is invalid