KnowStreaming getAttributes运行时错误

日志文件中暴露大量关于c.x.k.manager.service.service.impl.JmxServiceImpl - get attributes failed,的错误，具体内容如下：日志内容，一天可能会打60多个log 然后看具体报错：

2021-09-21 23:51:18.698 [Collect-Metrics-Thread-1-91] ERROR c.x.k.manager.service.service.impl.JmxServiceImpl - get attributes failed, metrics:TopicMetrics{appId='null', clusterId=8, topicName='CDC-IMX-CTO.dbo.INI', metricsMap={}} objectName:kafka.server:type=BrokerTopicMetrics,name=BytesOutPerSec,topic=CDC-IMX-CTO.dbo.INI.
java.io.IOException: Connection closed
	at javax.management.remote.rmi.RMIConnector.getMBeanServerConnection(RMIConnector.java:400)
	at javax.management.remote.rmi.RMIConnector.getMBeanServerConnection(RMIConnector.java:389)
	at com.xiaojukeji.kafka.manager.common.utils.jmx.JmxConnectorWrap.getAttributes(JmxConnectorWrap.java:126)
	at com.xiaojukeji.kafka.manager.service.service.impl.JmxServiceImpl.getAndSupplyAttributes2BaseMetrics(JmxServiceImpl.java:263)
	at com.xiaojukeji.kafka.manager.service.service.impl.JmxServiceImpl.getTopicMetrics(JmxServiceImpl.java:171)
	at com.xiaojukeji.kafka.manager.service.service.impl.JmxServiceImpl.getTopicMetrics(JmxServiceImpl.java:130)
	at com.xiaojukeji.kafka.manager.service.service.impl.JmxServiceImpl$1.call(JmxServiceImpl.java:93)
	at com.xiaojukeji.kafka.manager.service.service.impl.JmxServiceImpl$1.call(JmxServiceImpl.java:90)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

我在源码中找到了这段代码：

public AttributeList getAttributes(ObjectName name, String[] attributes) throws
            MBeanException,
            AttributeNotFoundException,
            InstanceNotFoundException,
            ReflectionException,
            IOException {
        try {
            acquire();
            MBeanServerConnection mBeanServerConnection = jmxConnector.getMBeanServerConnection();
            return mBeanServerConnection.getAttributes(name, attributes);
        } finally {
            atomicInteger.incrementAndGet();
        }
    }

现在执行到MBeanServerConnection mBeanServerConnection = jmxConnector.getMBeanServerConnection();就try到的错误，所以是否可以说jmx是连接成功的，但是在getMBeanServerConnection()环节出现了错误，不是很明白是什么原因。