private void validateDelta(EntryEventImpl event) {
    if (event.getDeltaBytes() != null && !event.getRegion().getAttributes().getCloningEnabled()) {
      throw new UnsupportedOperationInTransactionException(
          "Delta without cloning cannot be used in transaction");
    }
  }
throws an exception when cloning is disabled while using delta
geode-core/src/main/java/org/apache/geode/internal/cache/TXState.java