[jira] [Created] (GROOVY-10380) SC: IncompatibleClassChangeError when calling interface default method from non-public interface

["Eric Milles (Jira)" <ji...@apache.org>]

Eric Milles created GROOVY-10380:
------------------------------------

             Summary: SC: IncompatibleClassChangeError when calling interface default method from non-public interface
                 Key: GROOVY-10380
                 URL: https://issues.apache.org/jira/browse/GROOVY-10380
             Project: Groovy
          Issue Type: Bug
          Components: Static compilation
            Reporter: Eric Milles


Consider the following:
{code:java}
package p;
interface I {
  default void m() {
    System.out.println("works");
  }
}
public abstract class A implements I { // could be concrete or implemented in groovy as well
}
{code}
{code:groovy}
// not in package p
@groovy.transform.CompileStatic // works if CompileDynamic or TypeChecked
class C extends p.A {
  void test() {
    m() // IncompatibleClassChangeError: Found class C, but interface was expected
  }
}
{code}

In the case of a non-public interface with a public default method, static compilation produces a runtime error that is not present for dynamic groovy or for static java.



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