public void addLocalStatListener(LocalStatListener l, Statistics stats, String statName) {
    LocalStatListenerImpl localStatListener;
    synchronized (LocalStatListenerImpl.class) {
      localStatListener = LocalStatListenerImpl.create(l, stats, statName);
    }
    localListeners.put(localStatListener, Boolean.TRUE);
  }
Returns the <code>ProcessStats</code> for this Java VM. Note that <code>null</code> will be
returned if operating statistics are disabled.

@since GemFire 3.5
geode-core/src/main/java/org/apache/geode/internal/statistics/GemFireStatSampler.java