dn = dn.getSuffix( 1 );
dn = dn.getPrefix( 1 );
    public Name getMatchedName( Name dn, boolean normalized ) throws NamingException    {        dn = ( Name ) dn.clone();        while ( dn.size() > 0 )        {            if ( hasEntry( dn ) )            {                return dn;            }            dn = dn.getSuffix( 1 );        }        return dn;    }