Description Jason Frame 2006-09-05 07:20:49 EDT

This code compiles with eclipse 3.2 & 3.3M1 without error (there is the expected warning about the variable set not be used). However it fails to compile with the sun compiler version 1.5.06.

When I compile the code with the sun compiler I get the following errors:

[checking GenericsTest]
GenericsTest.java:12: incompatible types
found   : java.util.Set<GenericsTest.B>
required: java.util.Set<GenericsTest.A>
        Set<A> set = g.newSet(g.new B());

I'm not sure who is correct here. The generics syntax looks correct to me.

import java.util.LinkedHashSet;
import java.util.Set;

public class GenericsTest {

    public class A {};

    public class B extends A {};

    public static void main(String[] args) {
        GenericsTest g = new GenericsTest();
        Set<A> set = g.newSet(g.new B());
    }

    public <T, V extends T> Set<T> newSet(V... objects) {
        Set<T> set = new LinkedHashSet<T>();
        for (T t : objects) {
            set.add(t);
        }
        return set;
    }