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* GH-3183: Add ReactiveRequestHandlerAdvice Fixes https://github.com/spring-projects/spring-integration/issues/3183 * Introduce a `ReactiveRequestHandlerAdvice` with a `BiFunction<Message<?>, Mono<?>, Publisher<?>>` logic to apply a `Mono.transform()` operator for a returned from the handler `Mono` reply * Fix `WebFluxRequestExecutingMessageHandler` to return a `Mono.then()` instead of an explicit subscription - it happens downstream anyway during reply producing with a proper error handling, too * Demonstrate `ReactiveRequestHandlerAdvice` in the `RSocketDslTests` - without `retry()` it fails * Add `ConsumerEndpointSpec.customizeMonoReply()` for convenience * Document `ReactiveRequestHandlerAdvice` feature * * Fix language in docs
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: https://projects.spring.io/spring-integration