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Spring Data Ingalls SR1 and Hopper SR8 released

On behalf of the entire team, I’d like to announce the availability of Ingalls SR1 and Hopper SR8 service releases. Both of them ship 77 issues fixed in total. As usual, service releases are bugfix ones and recommended upgrades for all users. The releases are going to be picked up by the upcoming Boot 1.5 and 1.4 services releases for your convenience.

The complete list of issues fixed for Ingalls SR1 can be found here, the one for Hopper SR 8 here.

Spring Data Ingalls SR1

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This Week in Spring - February 28th, 2017

Welcome to another installment of This Week in Spring! As usual, we’ve got a lot to cover so let’s get to it! My friend Kenny Bastani and I will be doing a training for O’Reilly on the first and second of March introducing all things Spring, Spring Boot, Spring Cloud and Cloud Foundry - join us!

The long awaited public beta of Spring Cloud Services is now live on our public Cloud Foundry, PIvotal Web Services!

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Spring Framework 5.0 M5 Update

An update on the 5th and last milestone of Spring Framework 5.0…

Spring MVC and Spring WebFlux

The name Spring MVC is both well known and widely used but it may surprise a few there is no actual project or independent distribution with that name. Rather it is a module within the Spring Framework distribution called spring-webmvc. Here is another trivia question. Did you know that the top-level package in the module does not feature “mvc”? Rather it is called org.springframework.web.servlet. Practically speaking those are details that we don’t have to remember. What matters is that we have a short and memorable name to refer to Spring’s Servlet stack based web framework.

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Spring Framework 5.0 M5 released

Dear Spring community,

Leading into 2017, the fifth Spring Framework 5.0 milestone is available now. Once again, please check the project page for how to obtain it from our milestone repository.

This is the last milestone before we enter the release candidate phase. Our feature-complete RC1 is planned for early April, initiating a series of release candidates up until June. With this timeline, against near-final releases of OpenJDK 9 and several EE 8 specifications, our 5.0 generation covers early JDK 9 support as well as Servlet 4.0 and Bean Validation 2.0 already.

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Spring Cloud Data Flow for Cloud Foundry 1.1.1 Maintenance release available

The 1.1.1.RELEASE maintenance release of Spring Cloud Data Flow for Cloud Foundry is now available and includes a variety of stability and performance improvements. Following are the highlights:

  • Stability Improvements The instability problems when using SCDF’s 1.1.0.RELEASE on PCF manifested to the users in the following forms.

    • stream list operation would hang and eventually time out with “IllegalStateException: 503 Bad Gateway” or “IllegalStateException: Timeout on block read” exceptions. This is addressed in the cf-java-client library.

    • With SCDF server sitting cold/idle for a period of time and with OAUTH token refresh routine happening in the background, any new operation to the server would never complete. The OAUTH refresh token routine had a bug in successfully negotiating for new tokens. This is addressed in the cf-java-client library.

  • Error Handling Improvements The improved error handling and logging support include the operations and its call chain details. This is especially useful when performing 100s of stream/task operations in SCDF, and if anything fails in the process, it will be easy to correlate and determine the root-cause more efficiently. There has been error handling improvements in SCDF’s cf-deployer, cf-java-client, and reactor-core projects.

  • Network Call Optimizations While invoking stream list from the shell or navigating to the equivalent stream list page in the Dashboard, we were performing a network call for each application associated with the stream(s). This is now refactored and replaced to efficiently query for all the application statuses in a single network call if the backing runtime supports it (and the Cloud Foundry deployer certainly does). This change significantly improves the user-experience of the stream listing operation.

  • Stress/Load Testing In the process of addressing above mentioned instability patterns, we have built a comprehensive integration and acceptance test harness. With the load-testing routines simulating 100s of concurrent operations on the server including “stream creates”, “stream deploys”, “stream destroys”, and “stream lists”, we were able to monitor the overall health of the SCDF server and as well correlate to confirm the successful execution of operations in entirety.

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Reactor Aluminium-SR1 has landed

A batch update of releases has arrived and it is brought to you with the new Aluminium-SR1 Bill Of Material. Just in time for Spring Framework M5 !

Reactor-Core 3.0.5

release notes

An important quality update with new features including predicated-based windows and the checkpoint operator, fixes, test coverage and for the first time in 3.0.x line, a draft reference guide.

We are now working on 3.0.6.RELEASE which is going to be our last major 3.0 content update before 3.1.0.RELEASE. We encourage our Spring Community to just follow deprecated instructions if they hit any of the @Deprecated API, thus simply preparing for a quick, painless, upgrade when time comes. Have a look at our issues backlog for a more detailed scope.

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