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//*** This code from AbstractCDOView get root resource from the repository
public synchronized CDOResourceImpl getRootResource()
  {
    checkActive();
    if (rootResource == null)
    {
      CDOID rootResourceID = getSession().getRepositoryInfo().getRootResourceID();
      if (rootResourceID == null || rootResourceID.isNull())
      {
        throw new IllegalStateException("RootResourceID is null; is the repository not yet initialized?");
      }

      getObject(rootResourceID);
      CheckUtil.checkState(rootResource, "rootResource");
    }

    return rootResource;
  }