} else if (stateType == ARRAY_TYPE) {
            return readArray(decoder);
        } else {
            String stateClassName = decoder.readString();
            Class<?> stateClass = fromClassName(stateClassName);
            useJavaSerialization(stateClass);
            return build(stateClass).read(decoder);
        }
    }

    private void writeState(Encoder encoder, Object state) throws Exception {

        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) {