On behalf of the Spring Data team, I'd like to announce the availability of the second milestone of the release train Kay. The release is an important step towards a second generation of Spring Data.

We've upgraded the majority of the codebase to Java 8, now also embracing e.g. Optional in method signatures. This mostly affects internal SPIs but also leaks into user code, especially in CrudRepository. The support for reactive Spring Data repositories has been extended to Couchbase (Thanks, Subhashni!), the Redis module has a reactive template API now. The release also ships support for IsEmpty and IsNotEmpty for derived queries and implementaitons of those for MongoDB and JPA. The aggregation framework in MongoDB now also supports…

On behalf of the community, it's my pleasure to announce the general availability of Spring Vault 1.0 – the very first GA release of Spring Vault after almost a year of development.

The artifacts are available from Maven Central and Bintray.

<dependency>
  <groupId>org.springframework.vault</groupId>
  <artifactId>spring-vault-core</artifactId>
  <version>1.0.0.RELEASE</version>
</dependency>

The release ships more than 50 tickets fixed in total. Here’s a very truncated list of the most important features shipping with the release:

• Pluggable application authentication via AppRole, AWS-EC2, client certificates, Cubbyhole (wrapped tokens) and static tokens.
• Support for renewable @VaultPropertySource with credentials rotation.
• Lifecycle-aware session management with token renewal and re-login after terminal token expiry.
• Template API to interact with Vault directly.
• Compatibility with Vault 0.5 to 0.7.
…

On behalf of the community, I am pleased to announce that the General Availability (RELEASE) of the Spring Cloud Dalston Release Train is available today. The release can be found in Maven Central. You can check out the Dalston release notes for more information.

Notable Changes in the Dalston Release Train

Vault

Spring Cloud Vault Config is a new project that provides client-side support for externalized secret management in a distributed system via Hashicorp Vault.

Config Server

Config Server now has support for multiple backends via a Composite pattern. This allows for combinations of…

We are pleased to announce that these maintenance releases of Spring for Apache Kafka are now available, 1.2.0.RELEASE and 1.1.4.RELEASE.

These versions include several bug fixes and improvements, as well as introduce support for KStreams.

They are functionally equivalent; the 1.2.0.RELEASE is based on the 0.10.2.0 kafka-clients jar and 1.1.4.RELEASE can be used with 0.10.0.x and 0.10.1.x.

While 1.1.4.RELEASE will work at runtime with a 0.10.2.x client library, some breaking changes in the embedded kafka API means that the embedded kafka Junit @Rule in spring-kafka-test will not work and 1.2.…

The Spring Integration team is pleased to announce that the third milestone for the Spring Integration 5.0 release (5.0.0.M3) is now available.

53 JIRAs (and some GitHub issues) made into this release, including bug fixes and a number of new features. Some highlights since the previous Milestone 2:

• Initial implementation for a Spring Integration Testing Framework - the @SpringIntegrationTest annotation for test classes and MockIntegration factory help you to write unit tests for integration flows and channel adapters. We intend to flush out this capability with more features before GA, including more mocking, verifications and some send-and-receive utilities to test components in isolation. Feedback is welcome!

• POJO handler method invocations (@ServiceActivator, @Transformer etc., or such methods invoked from XML definitions) now use InvocableHandlerMethod by default. Together with the ConfigurableCompositeMessageConverter and @Default utilities that allows us to implement conditional method invocation scenarios based on the Content-Type and target method arguments resolution. To restore the previous SpEL-based behavior, the @UseSpelInvoker method-level annotation is provided.

  …

We are pleased to announce that the third milestone for the Spring AMQP 2.0 release (2.0.0.M3) is now available.

36 JIRA Issues are included in this release, including bug fixes and a number of new features:

• Initial support for broker-less integration testing - the TestRabbitTemplate discovers listener containers in the application context and invokes those containers' listeners for send() and sendAndReceive() operations. We intend to flush out this capability with more features before GA, including routing, and simulation of the various exchange types supported by RabbitMQ. Feedback is welcome.

• Rollback with an external transaction manager is now consistent with local transactions.

• The 4.1.x amqp-client library is now the default.

• The RabbitTemplate now has an invoke() method which allows multiple operations to be performed sequentially on the same channel. This also enables features such as waitForConfirmsOrDie() provided by the underlying library, when sending multiple messages to the same channel.

  …

Dear Spring Community,

I am happy to announce the 3.8.4 release of the Spring Tool Suite, our Eclipse-based tooling.

Highlights from this release include:

• updated to Eclipse Neon.3
• completely revamped wizard for direct access to start.spring.io
• boot dashboard: support for local Spring Cloud CLI services
• boot dashboard: support for routes when deploying apps to CF
• fixed font rendering on main STS dashboard
• added support for Buildship 2.0
• improved reliability for boot dashboard when showing status of running boot apps
• issue tracking moved to GitHub Issues

To download the distributions, please go visit:

• Spring Tool Suite: https://spring.io/tools/sts/all

Detailed new and noteworthy notes can be found here: STS 3.8.4 New & Noteworthy.

STS 3.9.0 is scheduled to be released on top of Eclipse Oxygen 4.7 in early July 2017.

Enjoy!

Update: Kotlin is now natively supported by reactor-core and reactor-test without requiring any additional extensions.

I am excited to announce the release of the first milestone of Reactor Kotlin Extensions, which provides Kotlin extensions for Reactor API.

It provides support for Kotlin types like KClass, takes advantage of Kotlin reified type parameters and provide various extensions to allow more expressive code. You can see bellow a quick comparaison of Reactor with Java versus Reactor with Kotlin + extensions.

…

Java	Kotlin with extensions
Mono.just("foo")	"foo".toMono()
Flux.fromIterable(list)	list.toFlux()
Mono.error(new RuntimeException())	RuntimeException().toMono()
Flux.error(new RuntimeException())	RuntimeException().toFlux()
flux.ofType(Foo.class)	flux.ofType<Foo>() or flux.ofType(Foo::class)
StepVerifier.create(flux).verifyComplete()	flux.test().verifyComplete()

On behalf of everyone who contributed, it's my pleasure to announce that Spring REST Docs 1.2.0.RC1 has been released and is available from https://repo.spring.io/milestone/.

What's new?

A complete overview of what's new in 1.2 can be found in the release notes. The following are some of the highlights.

Improved Asciidoctor integration

REST Docs now has a new module, spring-restdocs-asciidoctor, that makes it easier to use the generated snippets in your documentation. A new macro means that you can import multiple snippets for the same operation in a single line. This update to the samples…