code: public KeyDeclaration getKey(int i) throws ArrayIndexOutOfBoundsException
    {
  
      if (null == m_keyDeclarations)
        throw new ArrayIndexOutOfBoundsException();
  
      return (KeyDeclaration) m_keyDeclarations.elementAt(i);
    }
docs: Get an "xsl:key" property.
  @see <a href="http://www.w3.org/TR/xslt#key">key in XSLT Specification</a>
  
  @param i Index of KeyDeclaration element to get
  
  @return KeyDeclaration element at given index in list
  
  @throws ArrayIndexOutOfBoundsException