201f0fc2b1
JIRAs: https://jira.spring.io/browse/INT-3830 https://jira.spring.io/browse/INT-3523 https://jira.spring.io/browse/INT-3846 * Fix the OOM condition, when we `release()` `UpperBound` independently of the previous `remove` result (https://jira.spring.io/browse/INT-3846) * Fix "confuse" around `groupCapacity`, when we really didn't care about individual groups (https://jira.spring.io/browse/INT-3523) * Add `upperBoundTimeout` to have a hook to wait some time for the empty slot in the store (https://jira.spring.io/browse/INT-3830) * Fix some JavaDocs warnings * Fix some typos * Fix inconsistency in the `DelayHandler` around `removeMessageFromGroup` when `MS` is `SimpleMessageStore` * Remove `UpperBound.release()` operation from `SimpleMessageStore.removeGroup()`. The waiting process should worry about the new `UpperBound` instance. Some other polishing `tryAcquire` outside of the `lock` Move `tryAcquire` within the `addMessageToGroup` outside of `lock`. But do that only for groups which already exist. For the new groups we have a fresh `UpperBound`, so no need to worry about dead lock and we can obtain a permit immediately. SimpleMessageGroup: BlockingQueue -> LinkedHashSet `SimpleMessageStore`: use "unsynchonized" `SimpleMessageGroup` Make some synchronization fixes according to the migration to the `LinkedHashSet` Avoid extra `Collection` `ResequencingMessageHandler`: compare `size()` of collections instead of `containsAll()` Fix `ConcurrentModificationException` in the `AbstractKeyValueMessageStore` Add `SimpleMessageStore.clearMessageGroup()` Accept polishing and fix `RedisChannelMessageStoreTests` `@Deprecated` `MessageGroupStore.removeMessageFromGroup()` Fix some typos Introduce `SimpleMessageGroupFactory` Extract `MessageGroupFactory` and address PR comments Polishing after rebase JavaDocs and Reference Manual Fix JavaDocs
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