protected static IWorkspaceRoot getWorkspaceRoot()
  {
    if (!cachedWorkspaceRootInitialized)
    {
      try
      {
        // If the resource bundle isn't available, we will always return null for this method.
        if (EMFPlugin.IS_RESOURCES_BUNDLE_AVAILABLE)
        {
          // This will throw an exception if the instance location is not yet initialized,
          // i.e., when EMF is used by some component before the the user chooses the workspace location.
          // In this case we will return null and try again later to initialize the cached workspace root instance.
          EcorePlugin.getPlugin().getStateLocation();
          cachedWorkspaceRoot = workspaceRoot = EcorePlugin.getWorkspaceRoot();
        }
        cachedWorkspaceRootInitialized = true;
      }
      catch (Exception exception)
      {
        // Ignore.
      }
    }
    return cachedWorkspaceRoot;
  }