code: protected Class findLoadedClass0(String name) {
  
          ResourceEntry entry = (ResourceEntry) resourceEntries.get(name);
          if (entry != null) {
              return entry.loadedClass;
          }
          return (null);  // FIXME - findLoadedResource()
  
      }
docs: Finds the class with the given name if it has previously been
  loaded and cached by this class loader, and return the Class object.
  If this class has not been cached, return <code>null</code>.
  
  @param name Name of the resource to return