Re: unchecked conversion warning.

This code compiles with an 'unchecked conversion' warning.
I have tried various corrections, for example casting like (Vector<Object=
), but to no
avail.
What am I doing wrong?l
The code is the smallest demo I could make from the original application.
 
import java.util.Vector;
public class genericsdemo
{
  private static Vector<Vector> vdata = new Vector<Vector>(); //a Vecto=

  private static Vector<Object> vrow = new Vector<Object>(); //a row
 
  public static void main(String args[]) {
    vrow.add(null); //two columns in the row
    vrow.add(null);
 
    vdata.add(vrow); //add the row to the Vector of Vectors
 
    Vector vtmp = getrow(); //test
  }
 
  private static Vector<Object> getrow() {
    return vdata.elementAt(0); //warning: [unchecked] unchecked conversi=

  }
}
 
JensJ