/**
   * @see CheckOutCheckInService#getWorkingCopy(NodeRef)
   * @see CheckOutCheckInService#getCheckedOut(NodeRef)
   */
  public void testBidirectionalReferences() {
    final NodeRef origNodeRef =
        nodeService
            .createNode(
                this.rootNodeRef,
                ContentModel.ASSOC_CHILDREN,
                QName.createQName("test2"),
                ContentModel.TYPE_CONTENT)
            .getChildRef();

    NodeRef wk1 = cociService.getWorkingCopy(origNodeRef);
    assertNull(wk1);

    // Check the document out
    final NodeRef workingCopy = cociService.checkout(origNodeRef);
    assertTrue(
        "Expect cm:workingcopy aspect",
        nodeService.hasAspect(workingCopy, ContentModel.ASPECT_WORKING_COPY));
    assertTrue(
        "Expect cm:checkedOut aspect",
        nodeService.hasAspect(origNodeRef, ContentModel.ASPECT_CHECKED_OUT));
    List<AssociationRef> targetAssocs =
        nodeService.getTargetAssocs(origNodeRef, ContentModel.ASSOC_WORKING_COPY_LINK);
    assertEquals("Expect a 1:1 relationship", 1, targetAssocs.size());
    List<AssociationRef> sourceAssocs =
        nodeService.getSourceAssocs(workingCopy, ContentModel.ASSOC_WORKING_COPY_LINK);
    assertEquals("Expect a 1:1 relationship", 1, sourceAssocs.size());

    // Need to commit the transaction in order to get the indexer to run
    setComplete();
    endTransaction();

    final NodeRef finalNodeRef = origNodeRef;

    this.transactionService
        .getRetryingTransactionHelper()
        .doInTransaction(
            new RetryingTransactionCallback<Object>() {
              public Object execute() {
                NodeRef wk2 = cociService.getWorkingCopy(finalNodeRef);
                assertNotNull(wk2);
                assertEquals(workingCopy, wk2);
                NodeRef orig2 = cociService.getCheckedOut(wk2);
                assertNotNull(orig2);
                assertEquals(origNodeRef, orig2);

                cociService.cancelCheckout(workingCopy);
                return null;
              }
            });

    NodeRef wk3 = cociService.getWorkingCopy(this.nodeRef);
    assertNull(wk3);
  }
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  public DownloadRequest getDownloadRequest(NodeRef downloadNodeRef) {
    validateNode(downloadNodeRef);
    Map<QName, Serializable> properties = nodeService.getProperties(downloadNodeRef);

    List<AssociationRef> requestedNodes =
        nodeService.getTargetAssocs(downloadNodeRef, DownloadModel.ASSOC_REQUESTED_NODES);

    return new DownloadRequest(
        (Boolean) properties.get(DownloadModel.PROP_RECURSIVE),
        requestedNodes,
        (String) properties.get(ContentModel.PROP_CREATOR));
  }