docs: public static JavaClass lookupSystemClass(@Nonnull String className) throws ClassNotFoundException {
          // TODO: eventually we should move to our own thread-safe repository
          // implementation
          requireNonNull (className, "className is null");
          if (originalRepository == null) {
              throw new IllegalStateException("originalRepository is null");
          }
  
          JavaClass clazz = originalRepository.findClass(className);
          if(clazz != null){
              return clazz;
          }
          // XXX workaround for system classes missing on Java 9
          // Not sure if we BCEL update, but this seem to work in simple cases
          return AnalysisContext.currentAnalysisContext().lookupClass(className);
      }