有时候我的Spring Boot应用程序没有明确的原因而关闭。
我只能在应用日志中看到以下输出：
2019-09-02 01:39:16.199 INFO 23535 --- [ActiveMQ ShutdownHook] o.apache.activemq.broker.BrokerService : Apache ActiveMQ 5.15.9 (localhost, ID:example-33285-1567372309839-0:1) is shutting down
2019-09-02 01:39:16.216 INFO 23535 --- [ActiveMQ Connection Executor: vm://localhost#0] o.s.j.c.CachingConnectionFactory : Encountered a JMSException - resetting the underlying JMS Connection
javax.jms.JMSException: peer (vm://localhost#1) stopped.
at org.apache.activemq.util.JMSExceptionSupport.create(JMSExceptionSupport.java:54) ~[activemq-client-5.15.9.jar!/:5.15.9]
at org.apache.activemq.ActiveMQConnection.onAsyncException(ActiveMQConnection.java:1960) ~[activemq-client-5.15.9.jar!/:5.15.9]
at org.apache.activemq.ActiveMQConnection.onException(ActiveMQConnection.java:1979) ~[activemq-client-5.15.9.jar!/:5.15.9]
at org.apache.activemq.transport.TransportFilter.onException(TransportFilter.java:114) ~[activemq-client-5.15.9.jar!/:5.15.9]
at org.apache.activemq.transport.ResponseCorrelator.onException(ResponseCorrelator.java:126) ~[activemq-client-5.15.9.jar!/:5.15.9]
at org.apache.activemq.transport.TransportFilter.onException(TransportFilter.java:114) ~[activemq-client-5.15.9.jar!/:5.15.9]
at org.apache.activemq.transport.vm.VMTransport.stop(VMTransport.java:233) ~[activemq-broker-5.15.9.jar!/:5.15.9]
at org.apache.activemq.transport.TransportFilter.stop(TransportFilter.java:72) ~[activemq-client-5.15.9.jar!/:5.15.9]
at org.apache.activemq.transport.TransportFilter.stop(TransportFilter.java:72) ~[activemq-client-5.15.9.jar!/:5.15.9]
at org.apache.activemq.transport.ResponseCorrelator.stop(ResponseCorrelator.java:132) ~[activemq-client-5.15.9.jar!/:5.15.9]
at org.apache.activemq.broker.TransportConnection.doStop(TransportConnection.java:1194) ~[activemq-broker-5.15.9.jar!/:5.15.9]
at org.apache.activemq.broker.TransportConnection$4.run(TransportConnection.java:1160) ~[activemq-broker-5.15.9.jar!/:5.15.9]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na]
at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]
Caused by: org.apache.activemq.transport.TransportDisposedIOException: peer (vm://localhost#1) stopped.
... 9 common frames omitted
2019-09-02 01:39:16.218 INFO 23535 --- [Thread-7] o.s.s.c.ThreadPoolTaskScheduler : Shutting down ExecutorService 'taskScheduler'
2019-09-02 01:39:16.218 INFO 23535 --- [ActiveMQ ShutdownHook] o.a.activemq.broker.TransportConnector : Connector vm://localhost stopped
2019-09-02 01:39:16.225 INFO 23535 --- [Thread-7] o.s.s.concurrent.ThreadPoolTaskExecutor : Shutting down ExecutorService 'applicationTaskExecutor'
2019-09-02 01:39:16.230 INFO 23535 --- [ActiveMQ ShutdownHook] o.apache.activemq.broker.BrokerService : Apache ActiveMQ 5.15.9 (localhost, ID:example-33285-1567372309839-0:1) uptime 1 hour 27 minutes
2019-09-02 01:39:16.230 INFO 23535 --- [ActiveMQ ShutdownHook] o.apache.activemq.broker.BrokerService : Apache ActiveMQ 5.15.9 (localhost, ID:example-33285-1567372309839-0:1) is shutdown
我不知道造成关机的原因是什么。我应该采取什么步骤来确定原因？