Major Standard info log output:
2020-07-16 01:34:57,349 | WARN | Async error occurred: java.util.ConcurrentModificationException | org.apache.activemq.broker.TransportConnection.Service | ActiveMQ Transport: tcp:///x.x.x.x:yyyyyy@61616
Debug log output:
java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextNode(HashMap.java:1442)[:1.8.0_161]
at java.util.HashMap$KeyIterator.next(HashMap.java:1466)[:1.8.0_161]
at org.apache.activemq.broker.region.virtual.SelectorAwareVirtualTopicInterceptor.tryMatchingCachedSubs(SelectorAwareVirtualTopicInterceptor.java:82)[activemq-broker-5.15.3.jar:5.15.3]
at org.apache.activemq.broker.region.virtual.SelectorAwareVirtualTopicInterceptor.shouldDispatch(SelectorAwareVirtualTopicInterceptor.java:68)[activemq-broker-5.15.3.jar:5.15.3]
at org.apache.activemq.broker.region.virtual.VirtualTopicInterceptor.send(VirtualTopicInterceptor.java:114)[activemq-broker-5.15.3.jar:5.15.3]
at org.apache.activemq.broker.region.virtual.VirtualTopicInterceptor.send(VirtualTopicInterceptor.java:67)[activemq-broker-5.15.3.jar:5.15.3]
at org.apache.activemq.broker.region.DestinationFilter.send(DestinationFilter.java:132)[activemq-broker-5.15.3.jar:5.15.3]
at org.apache.activemq.broker.region.AbstractRegion.send(AbstractRegion.java:505)[activemq-broker-5.15.3.jar:5.15.3]
at org.apache.activemq.broker.region.RegionBroker.send(RegionBroker.java:459)[activemq-broker-5.15.3.jar:5.15.3]
at org.apache.activemq.broker.jmx.ManagedRegionBroker.send(ManagedRegionBroker.java:293)[activemq-broker-5.15.3.jar:5.15.3]
at org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:154)[activemq-broker-5.15.3.jar:5.15.3]
at org.apache.activemq.broker.CompositeDestinationBroker.send(CompositeDestinationBroker.java:96)[activemq-broker-5.15.3.jar:5.15.3]
at org.apache.activemq.broker.TransactionBroker.send(TransactionBroker.java:293)[activemq-broker-5.15.3.jar:5.15.3]
at org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:154)[activemq-broker-5.15.3.jar:5.15.3]
at org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:154)[activemq-broker-5.15.3.jar:5.15.3]
at org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:154)[activemq-broker-5.15.3.jar:5.15.3]
at org.apache.activemq.security.AuthorizationBroker.send(AuthorizationBroker.java:226)[activemq-broker-5.15.3.jar:5.15.3]
at org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:154)[activemq-broker-5.15.3.jar:5.15.3]
at org.apache.activemq.broker.TransportConnection.processMessage(TransportConnection.java:572)[activemq-broker-5.15.3.jar:5.15.3]
at org.apache.activemq.command.ActiveMQMessage.visit(ActiveMQMessage.java:768)[activemq-client-5.15.3.jar:5.15.3]
at org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:330)[activemq-broker-5.15.3.jar:5.15.3]
at org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:194)[activemq-broker-5.15.3.jar:5.15.3]
at org.apache.activemq.transport.MutexTransport.onCommand(MutexTransport.java:50)[activemq-client-5.15.3.jar:5.15.3]
at org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:125)[activemq-client-5.15.3.jar:5.15.3]
at org.apache.activemq.transport.AbstractInactivityMonitor.onCommand(AbstractInactivityMonitor.java:301)[activemq-client-5.15.3.jar:5.15.3]
at org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:83)[activemq-client-5.15.3.jar:5.15.3]
at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:233)[activemq-client-5.15.3.jar:5.15.3]
at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)[activemq-client-5.15.3.jar:5.15.3]
at java.lang.Thread.run(Thread.java:748)[:1.8.0_161]
