连接阿里云微服务消息队列MQTT，一直报如下错误，请问可能是什么原因？

"C:\Program Files\Java\jdk1.8.0_191\bin\java.exe" "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2018.3.4\lib\idea_rt.jar=64202:C:\Program Files\JetBrains\IntelliJ IDEA 2018.3.4\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.8.0_191\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\jfxswt.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\resources.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\rt.jar;C:\mqtt\mqtt-demo-master-4833938645bdd53863e750ffb3066ee89f5fb7e6mqtt-demo.git\lmq-java-demo\target\classes;C:\Users\Administrator.m2\repository\commons-codec\commons-codec\1.10\commons-codec-1.10.jar;C:\Users\Administrator.m2\repository\org\eclipse\paho\org.eclipse.paho.client.mqttv3\1.2.2\org.eclipse.paho.client.mqttv3-1.2.2.jar;C:\Users\Administrator.m2\repository\org\apache\httpcomponents\httpclient\4.5.2\httpclient-4.5.2.jar;C:\Users\Administrator.m2\repository\org\apache\httpcomponents\httpcore\4.4.4\httpcore-4.4.4.jar;C:\Users\Administrator.m2\repository\commons-logging\commons-logging\1.2\commons-logging-1.2.jar;C:\Users\Administrator.m2\repository\com\alibaba\fastjson\1.2.48\fastjson-1.2.48.jar;C:\Users\Administrator.m2\repository\com\aliyun\openservices\ons-client\1.7.9.Final\ons-client-1.7.9.Final.jar;C:\Users\Administrator.m2\repository\org\slf4j\slf4j-api\1.7.7\slf4j-api-1.7.7.jar;C:\Users\Administrator.m2\repository\com\aliyun\aliyun-java-sdk-onsmqtt\1.0.3\aliyun-java-sdk-onsmqtt-1.0.3.jar;C:\Users\Administrator.m2\repository\com\google\code\gson\gson\2.8.5\gson-2.8.5.jar;C:\Users\Administrator.m2\repository\com\aliyun\aliyun-java-sdk-core\4.5.0\aliyun-java-sdk-core-4.5.0.jar;C:\Users\Administrator.m2\repository\javax\xml\bind\jaxb-api\2.3.1\jaxb-api-2.3.1.jar;C:\Users\Administrator.m2\repository\javax\activation\javax.activation-api\1.2.0\javax.activation-api-1.2.0.jar;C:\Users\Administrator.m2\repository\org\jacoco\org.jacoco.agent\0.8.5\org.jacoco.agent-0.8.5-runtime.jar;C:\Users\Administrator.m2\repository\org\ini4j\ini4j\0.5.4\ini4j-0.5.4.jar;C:\Users\Administrator.m2\repository\io\opentracing\opentracing-api\0.33.0\opentracing-api-0.33.0.jar;C:\Users\Administrator.m2\repository\io\opentracing\opentracing-util\0.33.0\opentracing-util-0.33.0.jar;C:\Users\Administrator.m2\repository\io\opentracing\opentracing-noop\0.33.0\opentracing-noop-0.33.0.jar" com.aliyun.openservices.lmq.example.mqttotmqdemo.MQ4IoTConsumerDemoForAES Exception in thread "main" 已断开连接 (32109) - java.io.EOFException at org.eclipse.paho.client.mqttv3.internal.CommsReceiver.run(CommsReceiver.java:190) at java.lang.Thread.run(Thread.java:748) Caused by: java.io.EOFException at java.io.DataInputStream.readByte(DataInputStream.java:267) at org.eclipse.paho.client.mqttv3.internal.wire.MqttInputStream.readMqttWireMessage(MqttInputStream.java:92) at org.eclipse.paho.client.mqttv3.internal.CommsReceiver.run(CommsReceiver.java:137) ... 1 more