3e851d2e1b
JIRA: https://jira.spring.io/browse/INT-3697 Since Spring Integration 4.0 the `MessageHeaders` had been moved to the Spring Messaging module and `MessageHeaders.CONTENT_TYPE` had been changed from `content-type` name to the `contentType`. Previously the automatic mapping of `contentType` to the HTTP Request `Content-Type` has been introduced for the `HttpRequestExecutingMessageHandler`. This fix do the same for the HTTP Response in case of HTTP Inbound Endpoint. This allows to transfer HTTP headers automatically from underlying HTTP Outbound Endpoint for HTTP Proxy scenario. The response from that external HTTP service maybe changed during a downstream flow before sending HTTP Response from the HTTP Inbound Endpoint. Before this we was forced to map `contentType` to `Content-Type` manually or just rely on the `HttpMessageConverter`s. **Cherry-pick to 4.1.x**
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
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