code: @Override
      public void copyFrom(final CopyFrom obj) {
          final SleEntry entry = (SleEntry) obj;
          setGroupValues(entry.getGroupValues().clone());
          setSortValues(entry.getSortValues().clone());
      }
docs: Copies all the properties of the given bean into this one.
  <p>
  Any existing properties in this bean are lost.
  <p>
  This method is useful for moving from one implementation of a bean interface to another. For
  example from the default SyndFeed bean implementation to a Hibernate ready implementation.
  <p>
  
  @param obj the instance to copy properties from.