private RegionEntry getCheckedRegionEntry() throws EntryNotFoundException {
    if (regionEntry.isDestroyedOrRemoved()) {
      throw new EntryNotFoundException(
          "Entry for key " + regionEntry.getKey() + " no longer exists");
    }
    return regionEntry;
  }
Returns the entry's RegionEntry if it "checks" out. The check is to see if the region entry
still exists.

@throws EntryNotFoundException if the RegionEntry has been removed.
geode-core/src/main/java/org/apache/geode/internal/cache/ExpiryRegionEntry.java