I know events are being sent but they cannot be received by Consumer classes. What's wrong?

There are several possibilities here:

• the Consumer is not subscribed to the correct channel
• the Consumer is not subscribed to the correct event type
  • subscribe to event type null to get all events on that channel
  • this is always necessary in Java for the just partially supported case of receiving a sequence of IDL structs in one event.
• the Consumer has not had the consumerReady method invoked yet
• the Consumer is suspended. Invoke the resume method to fix this

Another possibility is a little known problem which could be coming from the Supplier itself. When each field of an ICD-style ALMA event is not explicitly set, there is a small chance that the event can be sent from the Supplier without any exceptions/warnings occurring. As if it's not bad enough that malformed events can be sent without error, what's even worse is that under certain conditions one type of ORB can receive the events flawlessly while another ORB cannot. At present, we know the following circumstances can lead to this bug:

• an enumeration value within an event which is not explicitly set from a C++ Supplier
• any field of an event which is equal to null sent by a Java Supplier