Bug 268837

Description Ildar Safarov 2009-03-16 13:34:44 EDT

Created attachment 128957 [details]
Archived eclipse project where bug is reproduced

Build ID: M20090211-1700

Steps To Reproduce:
Define this:
===
public interface MyCollection<E> {
    <T> MyCollection<T> uncheckedCast();
}
public interface MyList<E> extends MyCollection<E> {
    <T> MyList<T> uncheckedCast();
}
public class MyCollectionImpl<E> implements MyCollection<E> {
    public <T> MyCollectionImpl<T> uncheckedCast() { return null; }
}
public class MyListImpl<E> extends MyCollectionImpl<E> implements MyList<E> {
    public <T> MyListImpl<T> uncheckedCast() { return null; }
}
public class Main {
    public static void main(String[] args) {
        MyList<Integer> ints = new MyListImpl<Integer>();
        MyList<String> strings = ints.uncheckedCast();
    }
}
===
Eclipse will report "The method uncheckedCast() is ambiguous for the type MyList<Integer> Main.java line 7". While everything is ok with javac (JDK version 1.6 update 10). Compiler compliance level is set to 1.6 in project settings.

More information:
I already reported similar bug for static methods - id was 225518 - but presented example was incorrect.