code: @Override
      public Collection<String> resumeTriggers(final GroupMatcher<TriggerKey> matcher) throws JobPersistenceException {
          return doWithLock(new LockCallback<Collection<String>>() {
              @Override
              public Collection<String> doWithLock(JedisCommands jedis) throws JobPersistenceException {
                  return storage.resumeTriggers(matcher, jedis);
              }
          }, "Could not resume trigger group(s).");
      }
docs: Resume (un-pause) all of the <code>{@link org.quartz.Trigger}s</code>
  in the given group.
  <p/>
  <p>
  If any <code>Trigger</code> missed one or more fire-times, then the
  <code>Trigger</code>'s misfire instruction will be applied.
  </p>
  
  @param matcher a trigger group matcher
  @see #pauseTriggers(org.quartz.impl.matchers.GroupMatcher)