Gets the time-zone rules for this ID allowing calculations to be performed.
!(p)
The rules provide the functionality associated with a time-zone,
such as finding the offset for a given instant or local date-time.
!(p)
A time-zone can be invalid if it is deserialized _in a Java Runtime which
does not have the same rules loaded as the Java Runtime that stored it.
In this case, calling this method will throw a {@code ZoneRulesException}.
!(p)
The rules are supplied by {@link ZoneRulesProvider}. An advanced provider may
support dynamic updates to the rules without restarting the Java Runtime.
If so, then the result of this method may change over time.
Each individual call will be still remain thread-safe.
!(p)
{@link ZoneOffset} will always return a set of rules where the offset never changes.
@return the rules, not null
@throws ZoneRulesException if no rules are available for this ID
Gets the time-zone rules for this ID allowing calculations to be performed. !(p) The rules provide the functionality associated with a time-zone, such as finding the offset for a given instant or local date-time. !(p) A time-zone can be invalid if it is deserialized _in a Java Runtime which does not have the same rules loaded as the Java Runtime that stored it. In this case, calling this method will throw a {@code ZoneRulesException}. !(p) The rules are supplied by {@link ZoneRulesProvider}. An advanced provider may support dynamic updates to the rules without restarting the Java Runtime. If so, then the result of this method may change over time. Each individual call will be still remain thread-safe. !(p) {@link ZoneOffset} will always return a set of rules where the offset never changes.
@return the rules, not null @throws ZoneRulesException if no rules are available for this ID