}
protected NodeInstanceImpl readNodeInstanceContent(int nodeType,
ObjectInputStream stream, MarshallerReaderContext context,
WorkflowProcessInstance processInstance) throws IOException {
NodeInstanceImpl nodeInstance = null;
switch (nodeType) {
case PersisterEnums.RULE_SET_NODE_INSTANCE:
nodeInstance = new RuleSetNodeInstance();
break;
case PersisterEnums.HUMAN_TASK_NODE_INSTANCE: