Javac creates a class files that causes AbstractMethodError

Compile the following code and run it. You'll get:

Exception in thread "main" java.lang.AbstractMethodError: Bar.doIt()Ljava/lang/String;
        at JavacTest.main(JavacTest.java:8)

------------------------------------------------

public class JavacTest {
    public static void main(String[] args) {
        IBar b = new Bar();
        String x = b.doIt();
    }
}

class Foo<T> {
    public final T doIt() { return null; }
}

interface IBar {
    String doIt();
}

class Bar extends Foo<String> implements IBar {
}

###@###.### 2005-05-13 21:38:48 GMT