private void verifyRemoveAllKeys(Collection<Object> keys) {
    for (Object key : keys) {
      if (key == null) {
        throw new NullPointerException("Any key in removeAll must not be null");
      }
    }
  }
Return false if it will never store entry ekys and values locally; otherwise return true.
geode-core/src/main/java/org/apache/geode/internal/cache/LocalRegion.java