Bug 364212

Description McKinley 2011-11-19 04:32:28 EST

Build Identifier: 2.2.0.v201111181146

The follow Java and Xtend code causes Xtend to silently generate broken Java. If more type information is needed in Xtend, perhaps the IDE should highlight that error in the Xtend file. The following example was seen in the wild when I recently tried the HtmlUnit library with Xtend.

public interface InterfaceA { }

public class ClassB implements InterfaceA { }

public class ClassC extends ClassB {
    public static <T extends InterfaceA> T newClassBAsInterfaceA() {
        return (T) new ClassC();
    }
}

class XtendClass1 {
    def test() {
        val x = ClassC::newClassBAsInterfaceA
    }
}

This causes Xtend to produce the following broken generated Java code:

@SuppressWarnings("all")
public class XtendClass1 {
  public void test() {
    ? _newClassBAsInterfaceA = ClassC.newClassBAsInterfaceA();
    final ? x = _newClassBAsInterfaceA;
  }
}

Reproducible: Always

Steps to Reproduce:
See above.