Tomcat JNDI：NameNotFoundException DefaultManagedExecutorService和concurrent / ThreadPool

Question

我在Windows 7上运行Tomcat 8.5进行测试，不能使用ManagedExecutorService。 通过资源注入和代码尝试：

ManagedExecutorService executorService = (ManagedExecutorService)
                       ctx.lookup("java:comp/DefaultManagedExecutorService");
ManagedExecutorService executorService = (ManagedExecutorService)
                       ctx.lookup("java:comp/env/concurrent/ThreadPool");

两人都得到了：

  

javax.servlet.ServletException：javax.naming.NameNotFoundException：名称[concurrent / ThreadPool]未绑定在此Context中。无法找到[并发]。

使用默认安装程序安装Tomcat。 Tomcat conf files