private synchronized List<RVVException> getExceptions() {
    mergeBitSet();
    if (exceptions != null) {
      return exceptions;
    } else {
      return EMPTY_EXCEPTIONS;
    }
  }
This contructor should only be used for cloning a RegionVersionHolder or initializing and
invalid version holder (with version -1)
geode-core/src/main/java/org/apache/geode/internal/cache/versions/RegionVersionHolder.java