Running HelloWorld against the Java Broker, I notice that the Queue#ConsumerCountWithCredit statistic does not return to zero after the connection is closed. The problem is not apparent
when using the older protocols. Corrected: AMQP 0-9 also exhibits the same problem.
I notice org.apache.qpid.server.consumer.AbstractConsumerTarget#close clears _consumers then calls setNotifyWorkDesired which iterates _consumers.
I verified that v6.1 is not affected.