Task org.apache.activemq.artemis.core.remoting.impl.netty.NettyConnector$Listener$2@30134e39 rejected from java.util.concurrent.ThreadPoolExecutor@57fce8b[Shutting down, pool size = 1, active threads = 1, queued tasks = 0, completed tasks = 1]

Task org.apache.activemq.artemis.utils.actors.ProcessorBase$$Lambda$268/0x00007f305823f040@2b590594 rejected from java.util.concurrent.ThreadPoolExecutor@3d6031fc[Shutting down, pool size = 1, active threads = 1, queued tasks = 0, completed tasks = 2]

null is not a legitimate internal value. Concurrent Modification?

Task org.apache.activemq.artemis.core.remoting.impl.netty.NettyConnector$Listener$2@1d617ddb rejected from java.util.concurrent.ThreadPoolExecutor@136a702f[Shutting down, pool size = 1, active threads = 1, queued tasks = 0, completed tasks = 1]

Process completed with exit code 1.