The class doc for java.rmi.NoSuchObjectException ends with the following sentence:

 * A <code>NoSuchObjectException</code> is also thrown by the method
 * <code>java.rmi.server.RemoteObject.toStub</code> and by the
 * <code>unexportObject</code> methods of
 * <code>java.rmi.server.UnicastRemoteObject</code> and
 * <code>java.rmi.activation.Activatable</code> and

which ends with a conjunction and no terminating punctuation, which is not only grammatically problematic but leaves the reader wondering if more possible causes of this exception were intended to be specified.