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