This program doesn't compile:

import java.lang.ref.*;
 
public class CastProb {
 
  public ExtraRef prob(ReferenceQueue<Object> refQ) {
    return((ExtraRef)refQ.remove());
  }
 
  public static class ExtraRef
    extends WeakReference<Object> {
 
    int extraInfo;
 
    public ExtraRef(Object value) {
      super(value);
    }
  }
}

See http://forum.java.sun.com/thread.jspa?threadID=618527

###@###.### 2005-04-18 19:15:37 GMT