JMX MBean class xxx does not implement DynamicMBean, and neither follows the Standard MBean conventi

在运行标准 MBean 的示例时：

public class MBeanServerRegister { 
             public static void main(String[] args) throws Exception { 
                 // 获取 MBean Server         MBeanServer platformMBeanServer = ManagementFactory.getPlatformMBeanServer();         // 创建 MBean         CustomResource resource = new CustomResource();         resource.addItem("item_1");         resource.addItem("item_2");         resource.addItem("item_3");         // 注册         ObjectName objectName = new ObjectName("com.common.example.jmx:type=CustomResource, name=CustomResourceMBean");         platformMBeanServer.registerMBean(resource, objectName);         // 防止退出         while (true) { 
                     Thread.sleep(3000);             System.out.println("[INFO] 休眠 3s ...");         }     } } 

抛出以下异常：

Exception in thread "main" javax.management.NotCompliantMBeanException: MBean class com.common.example.jmx.CustomResource does not implement DynamicMBean, and neither follows the Standard MBean conventions (javax.management.NotCompliantMBeanException: Class com.common.example.jmx.CustomResource is not a JMX compliant Standard MBean) nor the MXBean conventions (javax.management.NotCompliantMBeanException: com.common.example.jmx.CustomResource: Class com.common.example.jmx.CustomResource is not a JMX compliant MXBean)
	at com.sun.jmx.mbeanserver.Introspector.checkCompliance(Introspector.java:176)
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:317)
	at com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:522)
	at com.common.example.jmx.MBeanServerRegister.main(MBeanServerRegister.java:26)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)

需要注意的是，标准 MBean 接口名称必需是在要监控的类名后面加上 MBean 后缀, 且要监控的类和 MBean 接口必需在同一包下。假设标准 MBean 接口名称为 ResourceMBean，那么实现 ResourceMBean 接口的实现类必须为 Resource：

public class Resource implements ResourceMBean { 
        
  ...
}

而此时我们的实现类名称为 CustomResource，所以抛出异常。