This commit updates Spring Integration to depend upon Spring 4, making
use of the message types that have moved from Spring Integration into
Spring's new spring-messaging module.
The default message converter no longer supports conversion of a
message that is null, throwing an IllegalArgumentException if an
attempt is made to convert null. Furthermore, GenericMessagingTemplate
does not support sending null, again throwing an
IllegalArgumentException. Previously, MessagingTemplate had no-oped an
attempt to send null.
ConcurrentAggregatorTests and AggregatorTests both had a single test
that was specifically testing the behaviour of an aggregator that
returns null for its message. These tests have been removed.
CorrelatingMessageHandlerTests have been updated to specify some
additional behaviour for its mocks so that null messages are not
returned.
These are the only functional changes that have been made. All other
changes are simply for moving to the repackaged and/or renamed types.
In the move to being part of core Spring, a number of constants and
header accessor methods have moved from MessageHeaders to
MessageHeaderAccessor. This commit continues this pattern for
the enterprise integration headers that are specific to Spring
Integration. A new class, EiMessageHeaderAccessor, has been created.
This class provides constants and methods for working with SI-specific
headers. The main code and tests have been updated to use this new
class.
INT-3094 Fix JSON Package Tangle
Move JSON 'discovery' classes to .support.json (used by
.json and .transformer - ObjectToMapTransformer)
INT-3094 Fix JSON Class Tangle
Separate factory methods to avoid class tangle.
Remove tight tangle between parser and mapper.
INT-3094 Fix Core Package Tangle
Move NamedComponent from .context to .support.context
(Used by .history, and .context references .store which references
.history through .util.)
INT-3094: fix 'support.json' package class-cycle
INT-3094 Polishing - PR Comments
Remove parser provider and make parsers public.
Add re-init logic for nested chains
Add logic about nested element for AbstractChannelAdapterParser
Refactor of DefaultOutboundChannelAdapterParser
Test for non-last nested chain with some outbound-channel-adapter
Improve XSD for chain-type
Manual outbound-channel-adapter ability for chain
Integration tests for all outbound-channel-adapter within <chain>
Remove redundant 'return-value-required' attribute from <stored-proc-outbound-channel-adapter>
Add support 'expectReply' for FileWritingMessageHandler
INT-2275 polishing & refactor FileOutbound*Parser
HttpRequestExecutingMessageHandlerTests polishing
INT-2275: polishing JavaDoc
@Ignore'd SimpleTcpNetOutboundGatewayTests#testOutboundClose() to avoid failure; this failure is correlated to the module name change, but hard to understand how it would be caused by it
