Examples of java.util.Timer.cancel()

java.util.Timer.cancel()
Terminates this timer, discarding any currently scheduled tasks. Does not interfere with a currently executing task (if it exists). Once a timer has been terminated, its execution thread terminates gracefully, and no more tasks may be scheduled on it.
Note that calling this method from within the run method of a timer task that was invoked by this timer absolutely guarantees that the ongoing task execution is the last task execution that will ever be performed by this timer.
This method may be called repeatedly; the second and subsequent calls have no effect.

      
      int individualID = userObject.getIndividualID();    // logged in user
      Timer userTimer = siteInfo.getUserTimer(individualID);
      if (userTimer != null)
      {
        userTimer.cancel();
      }
      if (session != null) 
      {
        session.invalidate();
      }

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          // make sure this job isn't already scheduled for some unknown reason...
          // .. by "make sure", I mean blindly cancel the job registered for this user.
          Timer currentTimer = siteInfo.getUserTimer(individualId);
          if (currentTimer != null) {
            currentTimer.cancel();
          }


          TimerTask currentTask = siteInfo.getUserTask(individualId);
          if (currentTask != null) {
            currentTask.cancel();

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                execute(reader);
            } catch (XQueryException e) {
                timer.cancel();
                throw e;
            }
            timer.cancel();
        } else {
            execute(reader);
        }
        if(_timing) {
            if(_timing_in_msec) {

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      SiteInfo siteInfo = Settings.getInstance().getSiteInfo(host);
      Timer currentTimer = siteInfo.getUserTimer(this.individualId);
      if (currentTimer != null)
      {
        logger.debug("[run] Calling cancel on the timer.");
        currentTimer.cancel();
      }
    }
  }   // end run() method
}   // end class definition

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        // cancel the existing timer.
        if (supportEmailTask != null) {
          supportEmailTask.cancel();
        }
        if (supportEmailTimer != null) {
          supportEmailTimer.cancel();
        }
        // only re-schedule the job if the interval is greater than zero
        // a zero value means do not check support email ever
        if (formInterval.intValue() > 0) {
          // minutes to seconds, seconds to miliseconds

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    timer.schedule(new TimerTask() {
      @Override
      public void run() {
        Object name = cacheProvider.get("name");
        if (name == null)
          timer.cancel();
        else
          System.out.println(name + "   " + (++index));
      }
    }, 0, 1000);
  }

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            throw new RuntimeException( e );
        }
        finally
        {
            // kill our ThreadPool monitors if existent
            if ( timer != null ) timer.cancel();


            try
            {
                // shutdown the Read-Process-ThreadPool if existent
                if ( this._readpool != null )

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                   log.error("Failed to destroy process " + processInfo);
               }
           } catch (InterruptedException e) {
               log.error("Timeout waiting for process " + processInfo + " to exit");
            } finally {
                t.cancel();
            }
       }
   }
}

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            if (counter != null && counter.decrementAndGet() <= 0) {
                refCounts.remove(key);
                // remove timer as its no longer in use
                Timer timer = timers.remove(key);
                if (timer != null) {
                    timer.cancel();
                }
            }
        }
    }

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                hashSeed++; // will wrap around if a hashSeedHint was provided
            }


        } finally {
            if (timer != null) {
                timer.cancel();
            }
        }


        return oam;
    }

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