code: @Override
      public ClassInformation getInformation(String internalClassName) {
          Validate.notNull(internalClassName);
          
          try (InputStream is = classLoader.getResourceAsStream(internalClassName + ".class")) {
              if (is == null) {
                  return null;
              }
              
              return InternalUtils.getClassInformation(is);
          } catch (IOException ioe) {
              throw new IllegalStateException(ioe); // this should never happen
          }
      }
docs: NOTE: If this doesn't work, try to do what Remi said with regards to patching the existing stackmap frames.