Getting a "Failed to change channel state to ReadyForWriting : java.util.ConcurrentModificationException" error message with AMQ Broker HA Cluster

Solution Verified - Updated -

Issue

After configuring HA Cluster in Red Hat AMQ Broker, when starting Primary and Secondary nodes, it displays several WARN messages in artemis.log

2023-02-01 15:41:01,988 WARN  [org.apache.activemq.artemis.core.client] AMQ212072: Failed to change channel state to ReadyForWriting : java.util.ConcurrentModificationException
    at java.base/java.util.ArrayList.forEach(ArrayList.java:1543) [java.base:]
    at org.apache.activemq.artemis.core.remoting.impl.netty.NettyConnection.fireReady(NettyConnection.java:171) [artemis-core-client-2.21.0.redhat-00025.jar:2.21.0.redhat-00025]
    at org.apache.activemq.artemis.core.remoting.impl.netty.NettyAcceptor$Listener.connectionReadyForWrites(NettyAcceptor.java:988) [artemis-server-2.21.0.redhat-00025.jar:2.21.0.redhat-00025]
    at org.apache.activemq.artemis.core.remoting.impl.netty.ActiveMQChannelHandler.channelWritabilityChanged(ActiveMQChannelHandler.java:65) [artemis-core-client-2.21.0.redhat-00025.jar:2.21.0.redhat-00025]
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelWritabilityChanged(AbstractChannelHandlerContext.java:441) [netty-transport-4.1.75.Final-redhat-00001.jar:4.1.75.Final-redhat-00001]

Environment

  • Red Hat AMQ Broker
    • 7.10.0

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