https://issues.apache.org/jira/browse/AMQ-4160 - fix up multicast discovery regression - it was giving uniqueue events to add/remove. MulticastDiscoveryOnFaultyNetworkTest - added static variant to that test also to validate existing changes
activemq/trunk/activemq-client/src/main/java/org/apache/activemq/transport/discovery/multicast/MulticastDiscoveryAgent.java