code: private void addVetoedClasses(String serviceName, String serviceImpls, ClassLoader classLoader,
          Map<Class<?>, Set<Class<?>>> vetoed) {
          try {
              final Class<?> serviceClass = classLoader.loadClass(serviceName);
              final Set<Class<?>> classes = loadVetoedServiceImpl(serviceImpls, classLoader);
  
              final Set<Class<?>> registeredVetoedClasses = vetoed.get(serviceClass);
              if (registeredVetoedClasses == null) {
                  vetoed.put(serviceClass, classes);
              } else {
                  registeredVetoedClasses.addAll(classes);
              }
          } catch (ClassNotFoundException e) {
              // ignores since this is a veto that it is not applicable
          }
      }
docs: -------------------------------------------------------------------------------------||