Can it be simpler and not work?

I'm trying to create a simple webservice using the sample code distributed with the JDKEE.
HelloIF.java
package hellosvc;
import java.rmi.Remote;
import java.rmi.RemoteException;
public interface HelloIF extends Remote {
    public String sayHello(String s) throws RemoteException;
HelloImpl.java
package hellosvc;
public class HelloImpl implements HelloIF {
    public String message = "Hello ";
    public String sayHello(String s) {
        return message + s;
}HelloIF.java compiles fine. HelloImpl.java does not:
D:\hellosvc>javac HelloImpl.java
HelloImpl.java:44: cannot resolve symbol
symbol : class HelloIF
location: class hellosvc.HelloImpl
public class HelloImpl implements HelloIF {
^
1 error
Both files are in the same directory. I'm using version 1.4.2. I am a java noob so I suspect I'm missing something basic. Thanks.

Classpath is set to current dir. Even "java
-classpath d:\hellosvc HelloImpl.java" doesn't work.
(same error)Of course that doesn't work. Set the classpath to "d:\" to see the package "hellosvc" if "hellosvc" is in "d:\hellosvc".

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