net.rim.device.api.io.messaging
Interfaces 
BlockingReceiverDestination
BlockingSenderDestination
ByteMessage
ChainableMessageProcessor
Credentials
CredentialsCollector
Destination
FireAndForgetDestination
HttpMessage
InboundDestinationConfiguration
Message
MessageListener
MessageProcessor
NonBlockingReceiverDestination
NonBlockingSenderDestination
ReceiverDestination
SenderDestination
StreamMessage
Classes 
BasicSubscriptionMessageBuilder
BpsSubscriptionMessageBuilder
Context
DestinationFactory
Headers
InboundDestinationConfigurationFactory
MessageFuture
MessageProcessorChain
ProcessorHelper
UsernamePasswordCredentials
Exceptions 
MessageFailureException
MessageModificationException
MessageProcessorException
MessagingException
SubscriptionException