A DESCRIPTION OF THE REQUEST :
The java doc for
public ZonedDateTime minusHours(long hours)
...
   * For example, consider a time-zone where the spring DST cutover means that the
     * local times 01:00 to 01:59 occur twice changing from offset +02:00 to +01:00.
     * <ul>
     * <li>Subtracting one hour from 02:30+01:00 will result in 01:30+02:00
     * <li>Subtracting one hour from 01:30+01:00 will result in 01:30+02:00
     * <li>Subtracting one hour from 01:30+02:00 will result in 00:30+01:00
     * <li>Subtracting three hours from 02:30+01:00 will result in 00:30+02:00
...
the first example is wrong. It should read
     * <li>Subtracting one hour from 02:30+01:00 will result in 01:30+01:00

JUSTIFICATION :
Wrong documentation