public int timerPurge() {
    // Fix 39585, IBM's java.util.timer's purge() has stack overflow issue
    if (isIBM) {
      return 0;
    }
    return timer.purge();
  }
Cancel all outstanding timers

@param system the DistributedSystem whose timers should be cancelled
geode-core/src/main/java/org/apache/geode/internal/SystemTimer.java