JIRA: https://jira.spring.io/browse/INT-3860 Similar to INT-3794, if some other process is bound to all adapters $ lsof -i tcp -nP | grep 9000 java 6604 grussell 380u IPv6 0x407e749ec47fa337 0t0 TCP *:9000 (LISTEN) The socket utils reports that the localhost is available for binding; however, the test then binds to all adapters. 1. Where (easily) possible, change tests to use port=0 and let the OS choose. 2. For other tests, use high-numbered ports. 3. Change tests to explicitly bind to localhost (like the utility did). 4. Fix `tcpOutboundGatewayInsideChain` test to use the correct port. Polishing - Fix Travis Bind SOLingerTests to localhost. Since we're using port 0, we have to wait until listening before calling getPort().
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