code: public static <T> Serializer<T> dummySerializer() {
          return new Serializer<T>() {
              @Override
              public void write(PrimitivO output, T object) {
                  throw new RuntimeException("Dummy serializer.");
              }
  
              @Override
              public T read(PrimitivI input) {
                  throw new RuntimeException("Dummy serializer.");
              }
  
              @Override
              public boolean isReference() {
                  return true;
              }
  
              @Override
              public boolean handlesReference() {
                  return false;
              }
          };
      }
docs: Serializer that throws exception for any serialization. Use for known objects.