/**
 * Set the last modified time of the file. The time is specified as milliseconds
 * from Jan 1, 1970 which is the same as that which is returned by the
 * <tt>lastModified()</tt>, <tt>getLastModified()</tt>, and <tt>getDate()</tt> methods.
 * <p/>
 * This method does not apply to workgroups, servers, or shares.
 *
 * @param time the last modified time as milliseconds since Jan 1, 1970
 */