T params = Cast.uncheckedCast(deserialize(spec.getSerializedParameters()).isolate());
        return new SimpleActionExecutionSpec<>(Cast.uncheckedCast(fromClassName(spec.getImplementationClassName())), params, spec.isInternalServicesRequired());
    }

    static Class<?> fromClassName(String className) {
        try {
            return ClassLoaderUtils.classFromContextLoader(className);
        } catch (Exception e) {