com.liferay.portal.kernel.messaging
Interfaces 
Destination
DestinationEventListener
DestinationNames
MessageBus
MessageListener
Classes 
BaseDestination
BaseDestinationEventListener
BaseMessageListener
BridgingMessageListener
DefaultMessageBus
DestinationStatistics
DummyMessageListener
GlobalDestinationEventListener
InvokerMessageListener
Message
MessageBusUtil
MessageStatus
ParallelDestination
SerialDestination
Exceptions 
MessageBusException