code: public static void setRegisterWithVM(final boolean registerWithVM) {
      if (Converters.registerWithVM != registerWithVM) {
        Converters.registerWithVM = registerWithVM;
  
        // register all converters with the VM
        if (registerWithVM) {
          for (Entry<Class, Converter> entry : REGISTRY.entrySet()) {
            Class type = entry.getKey();
            Converter converter = entry.getValue();
            PropertyEditorManager.registerEditor(type, converter.getClass());
          }
        }
      }
    }
docs: Sets if converters registered with the VM PropertyEditorManager.
  If the new value is true, all currently registered converters are
  immediately registered with the VM.