code: public void updateEntry(CmsUUID entryId, final AsyncCallback<Void> callback) {
  
          getChildren(
              entryId,
              CmsSitemapTreeItem.getItemById(entryId).isOpen(),
              new AsyncCallback<CmsClientSitemapEntry>() {
  
                  public void onFailure(Throwable caught) {
  
                      // nothing to do
  
                  }
  
                  public void onSuccess(CmsClientSitemapEntry result) {
  
                      if (callback != null) {
                          callback.onSuccess(null);
                      }
                  }
              });
      }
docs: Updates the given entry.<p>
  
  @param entryId the entry id
  @param callback the callback to call after the entry has been updated