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.

    private Timer getTimer(boolean create) {
        Timer ret = timer.get();
        if (ret == null && create) {
            Timer newt = new Timer("RMManager-Timer-" + System.identityHashCode(this), true);
            if (!timer.compareAndSet(null, newt)) {
                newt.cancel();
            }
        }
        return timer.get();
    }
    public Timer getTimer() {

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        // remove references to timer tasks cancelled above to make them
        // eligible for garbage collection
        Timer t = getTimer(false);
        if (t != null) {
            t.purge();
            t.cancel();
        }


        // unregistring of this managed bean from the server is done by the bus itself
    }

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          Thread.sleep(checkInterval);
          areJobsAvailable = areJobsAvailable();
        }
      } catch (InterruptedException e) {
      } finally {
        timer.cancel();
      }
      if (areJobsAvailable) {
        throw new ProcessEngineException("time limit of " + maxMillisToWait + " was exceeded");
      }

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          Thread.sleep(intervalMillis);
          areJobsAvailable = areJobsAvailable(processEngineConfiguration);
        }
      } catch (InterruptedException e) {
      } finally {
        timer.cancel();
      }
      if (areJobsAvailable) {
        throw new ProcessEngineException("time limit of " + maxMillisToWait + " was exceeded");
      }

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            // isolation level doesn't allow READ of the table
          }
        }
      } catch (InterruptedException e) {
      } finally {
        timer.cancel();
      }
      if (areJobsAvailable) {
        throw new ProcessEngineException("time limit of " + maxMillisToWait + " was exceeded");
      }

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        }
      } catch (InterruptedException e) {
      } catch (Exception e) {
        throw new ProcessEngineException("Exception while waiting on condition: "+e.getMessage(), e);
      } finally {
        timer.cancel();
      }
      if (conditionIsViolated) {
        throw new ProcessEngineException("time limit of " + maxMillisToWait + " was exceeded");
      }

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          Thread.sleep(intervalMillis);
          areJobsAvailable = areJobsAvailable(managementService);
        }
      } catch (InterruptedException e) {
      } finally {
        timer.cancel();
      }
      if (areJobsAvailable) {
        throw new ProcessEngineException("time limit of " + maxMillisToWait + " was exceeded");
      }

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          Thread.sleep(intervalMillis);
          areJobsAvailable = areJobsAvailable();
        }
      } catch (InterruptedException e) {
      } finally {
        timer.cancel();
      }
      if (areJobsAvailable) {
        throw new ProcessEngineException("time limit of " + maxMillisToWait + " was exceeded");
      }

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        }
      } catch (InterruptedException e) {
      } catch (Exception e) {
        throw new ProcessEngineException("Exception while waiting on condition: "+e.getMessage(), e);
      } finally {
        timer.cancel();
      }
      if (conditionIsViolated) {
        throw new ProcessEngineException("time limit of " + maxMillisToWait + " was exceeded");
      }

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      }
    } catch (InterruptedException ie) {
      throw new IOException(ie.toString());
    } finally {
      if ((timeOutTimer!=null) && !timedOut.get()) {
        timeOutTimer.cancel();
      }
      // close the input stream
      try {
        inReader.close();
      } catch (IOException ioe) {

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