How can I implement toString() method in my EJB?

I have implementation in my ejb-implementation class:
  public String toString() {
      return new String(" User id =" + m_id +"; ");
  }

and in the remote interface
  public java.lang.String toString() throws RemoteException;

But I got this error message:
... method toString() in interface userEntity cannot override method toString() in class java.lang.Object, overridden method does not throw java.rmi.RemoteException at line 12, column 27