JIRA: https://jira.spring.io/browse/INT-4438 The `SmartLifecycleRoleController` is based on the `MultiValueMap` which used internally a `List` for the values. With such an architecture we can add the same value several times. On the other hand we are iterating over `Lifecycle`s in the role and build a `Map` for their running status. In this case when `NamesComponent`s return the same name the Java `Collectors.toMap()` fails with a duplicate key error. In any cases it would be better do not allow to add the same lifecylce several time to the role or different with the same name. * Add search logic to the `addLifecycleToRole()` to fail fast with the `IllegalArgumentException` because a lifecycle with the same name is already present in the role **Cherry-pick to 5.0.x** * Remove redundant `this.initialized = false` from the `AbstractPollingEndpoint.doStop()` Add `allEndpointsRunning()` verification to the `EndpointRoleParserTests` Polishing
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