Bug 104551

Description Markus Keller 2005-07-20 14:29:14 EDT

I20050627-1435 (3.1)

Method override checks fail with raw subtype and type variable as type bound.
Javac accepts these classes, which is IMO correct.

interface IStructuredContentProvider<I, E extends I> {
    public E[] getElements(I inputElement);
    public E[] getChildren(E parent);
}

class MyContentProvider implements IStructuredContentProvider {
// eclipse error: The type MyContentProvider must implement the inherited
// abstract method IStructuredContentProvider.getChildren(I)

    public Object[] getElements(Object inputElement) {
        // eclipse error: The return type is incompatible with
        // IStructuredContentProvider.getElements(Object)
        return null;
    }

    public Object[] getChildren(Object parent) {
        // eclipse error: Name clash: The method getChildren(Object) of type
        // MyContentProvider has the same erasure as getChildren(E) of type
        // IStructuredContentProvider<I,E> but does not override it
        return null;
    }
}