odata2-annotation-processor/annotation-processor-core/src/main/java/org/apache/olingo/odata2/annotation/processor/core/ListsProcessor.java [1662:1676]:
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  public BatchResponsePart executeChangeSet(final BatchHandler handler, final List<ODataRequest> requests)
      throws ODataException {
    List<ODataResponse> responses = new ArrayList<ODataResponse>();
    for (ODataRequest request : requests) {
      ODataResponse response = handler.handleRequest(request);
      if (response.getStatus().getStatusCode() >= HttpStatusCodes.BAD_REQUEST.getStatusCode()) {
        // Rollback
        List<ODataResponse> errorResponses = new ArrayList<ODataResponse>(1);
        errorResponses.add(response);
        return BatchResponsePart.responses(errorResponses).changeSet(false).build();
      }
      responses.add(response);
    }
    return BatchResponsePart.responses(responses).changeSet(true).build();
  }
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odata2-lib/odata-ref/src/main/java/org/apache/olingo/odata2/ref/processor/ListsProcessor.java [1650:1664]:
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  public BatchResponsePart executeChangeSet(final BatchHandler handler, final List<ODataRequest> requests)
      throws ODataException {
    List<ODataResponse> responses = new ArrayList<ODataResponse>();
    for (ODataRequest request : requests) {
      ODataResponse response = handler.handleRequest(request);
      if (response.getStatus().getStatusCode() >= HttpStatusCodes.BAD_REQUEST.getStatusCode()) {
        // Rollback
        List<ODataResponse> errorResponses = new ArrayList<ODataResponse>(1);
        errorResponses.add(response);
        return BatchResponsePart.responses(errorResponses).changeSet(false).build();
      }
      responses.add(response);
    }
    return BatchResponsePart.responses(responses).changeSet(true).build();
  }
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