Bug 322371

Description aditya.siram 2010-08-11 10:44:37 EDT

Build Identifier: 20100617-1415

I have the following test class that uses generics to overload a method. It works when compiled with javac and fails to compile in Eclipse Helios. The error is : 
Method getFirst(ArrayList<String>) has the same erasure getFirst(ArrayList<E>) as another method in type Test

My java version is 1.6.0_21.

All the articles I read indicate that Eclipse is right and this code should not work. However when compiled with javac and run, the right method is selected.

How is this possible?

import java.util.ArrayList;

public class Test {
    public static void main (String [] args) {
        Test t = new Test();
        ArrayList<String> ss = new ArrayList<String>();
        ss.add("hello");
        ss.add("world");
        ArrayList<Integer> is = new ArrayList<Integer>();
        is.add(1);
        is.add(2);
        System.out.println(t.getFirst(ss));
        System.out.println(t.getFirst(is));
    }   
    public String getFirst (ArrayList<String> ss) {
        return ss.get(0);
    }
    public Integer getFirst (ArrayList<Integer> ss) {
        return ss.get(0);
    }
}



Reproducible: Always

Steps to Reproduce:
1. Paste the test code above into an Eclipse buffer.
2.
3.