code: @Override
      protected void createConversationState() {
          if (tc.isEntryEnabled())
              SibTr.entry(this, tc, "createConversationState");
  
          // Now create the Conversation wide ConversationState
          ConversationState cs = new ConversationState();
          getConversation().setAttachment(cs);
  
          // Only create one if one does not already exist
          ServerLinkLevelState lls = (ServerLinkLevelState) getConversation().getLinkLevelAttachment();
          if (lls == null) {
              getConversation().setLinkLevelAttachment(new ServerLinkLevelState());
          }
  
          if (tc.isEntryEnabled())
              SibTr.exit(this, tc, "createConversationState");
      }
docs: This method will create the conversation state overwritting anything previously
  stored.