code: private InputStream loadBaseResource(String name) {
          return parent == null ? super.getResourceAsStream(name) : parent.getResourceAsStream(name);
      }
docs: Finds a system resource (which should be loaded from the parent
  classloader).
  
  @param name The name of the system resource to load.
  Must not be <code>null</code>.
  
  @return a stream to the named resource, or <code>null</code> if
  the resource cannot be found.