code: public boolean addAll(Collection collection) {
          for (Iterator iterator = collection.iterator(); iterator.hasNext(); ) {
              this.add(iterator.next());
          }
          return true;
      }
docs: Adds a collection of <CODE>Chunk</CODE>s
  to this <CODE>Phrase</CODE>.
  
  @param	collection	a collection of <CODE>Chunk</CODE>s, <CODE>Anchor</CODE>s and <CODE>Phrase</CODE>s.
  @return	<CODE>true</CODE> if the action succeeded, <CODE>false</CODE> if not.
  @throws	ClassCastException	when you try to add something that isn't a <CODE>Chunk</CODE>, <CODE>Anchor</CODE> or <CODE>Phrase</CODE>