Re: Interface design problem

OK, there is an application that is working with files. The interface
that is implemented for of File-System operations looks something like
this:

public interface IFileSystem {
        public boolean loadFile(final File file) throws IOException;
        public char[] readFile() throws IOException;
        public int getFileSize();
        // etc
}

Now I want my application to support remote file read operations and
this requires me to introduce the following change in methods
signature

public interface INetwork {
        public boolean loadFile(final File file) throws IOException,
RemoteException;
        public char[] readFile() throws IOException, RemoteException;
        public int getFileSize() throws RemoteException;
        // etc
}

As you can easily notice everything in the signature except the newly
introduced RemoteException remains the same.

My problem is that I would like to extend INetwork from IFileSystem
and I don't know what is the best way to do this. Some methods like
INetwork#getFileSize() can not be overridden because they introduce
new exception and this is actually the main problem here.

I wonder if you had some ideas on what is the best way to do that?