code: @Override
      protected URL findResource(String name) {
          try {
              return Whitebox.invokeMethod(deferTo, "findResource", name);
          } catch (Exception e) {
              throw new RuntimeException(e);
          }
      }
docs: Finds the resource with the specified name on the search path.
  
  @param name the name of the resource
  @return a {@code URL} for the resource, or {@code null} if the
  resource could not be found.