private boolean isEntryDestroyed(Region.Entry re) {
    if (re.isLocal()) {
      return re.isDestroyed();
    } else {
      Region r = re.getRegion();
      Object key = re.getKey();
      Region.Entry freshRE = r.getEntry(key);
      if (freshRE == null) {
        return true;
      }
      return freshRE.isDestroyed();
    }
  }
Since <em>tilt</em> is the earliest time we expect, one must check the current time
<em>before</em> invoking the operation intended to keep the entry alive.

@param entry entry we want to be invalidated
@param p_tilt earliest time we expect to see the invalidate
@param pauseMs the number of milliseconds to pause before checking again
geode-dunit/src/main/java/org/apache/geode/cache30/RegionTestCase.java