code: protected InputStream findLoadedResource(String name) {
  
          ResourceEntry entry = (ResourceEntry) resourceEntries.get(name);
          if (entry != null) {
              if (entry.binaryContent != null)
                  return new ByteArrayInputStream(entry.binaryContent);
          }
          return (null);
  
      }
docs: Finds the resource with the given name if it has previously been
  loaded and cached by this class loader, and return an input stream
  to the resource data.  If this resource has not been cached, return
  <code>null</code>.
  
  @param name Name of the resource to return