986d5fc0cd
JIRA: https://jira.spring.io/browse/INT-4363 The JIRA requests making the `MessageHandlerMethodFactory` a bean. This is not possible without a major rework of the `MessagingMethodInvokerHelper`. The problem is that the `InvokerHandlerMethod` s are created before the factory is initialized. In fact, it only works at all since the IHMs have a hard reference to the factory's argument resolvers so, when they are initialized in `initialize()` each handler sees the resolvers. This really needs to be improved but, since we are so close to GA, the compromise was to add a `HandlerMethodArgumentResolversHolder` which holds the standard resolvers which are then wired into the factory (along with the message converter). Delaying the creation of the `InvokerHandlerMethod` is not trivial; today they are built in the CTOR; moving it to `initialize()` would prevent the fast failure for a badly configured bean; the proper solution might be to make the MMIHs beans themselves. Polishing - PR Comments
Spring Integration 
Checking out and Building
To check out the project and build from source, do the following:
git clone git://github.com/spring-projects/spring-integration.git
cd spring-integration
./gradlew build
NOTE: While Spring Integration runs with Java SE 6 or higher, a Java 8 compiler is required to build the project.
If you encounter out of memory errors during the build, increase available heap and permgen for Gradle:
GRADLE_OPTS='-XX:MaxPermSize=1024m -Xmx1024m'
To build and install jars into your local Maven cache:
./gradlew install
To build api Javadoc (results will be in build/api):
./gradlew api
To build reference documentation (results will be in build/reference):
./gradlew reference
To build complete distribution including -dist, -docs, and -schema zip files (results will be in build/distributions)
./gradlew dist
Using Eclipse
To generate Eclipse metadata (.classpath and .project files), do the following:
./gradlew eclipse
Once complete, you may then import the projects into Eclipse as usual:
File -> Import -> Existing projects into workspace
Browse to the 'spring-integration' root directory. All projects should import free of errors.
Using IntelliJ IDEA
To generate IDEA metadata (.iml and .ipr files), do the following:
./gradlew idea
Resources
For more information, please visit the Spring Integration website at: http://projects.spring.io/spring-integration