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