Getting started with Kubernetes can be intimidating at first. Installing Kubernetes is not the easiest of tasks and can get quite frustrating.[^1] Luckily, there is an out-of-the box distribution called Minikube which makes toying around with Kubernetes a bliss.

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The probably best written tests are those which can be understood by anyone understanding some English, right?

Hamcrest is an anagram of the word “Matchers” and a paradigm of encapsulating matching logic and corresponding error messages in objects we could use and reuse in the tests. They hide “matching”-implementation details and get self explanatory names we can seamless integrate in our tests. And of course we are also able to write tests for our matchers!

Hamcrest itself isn’t only intended to be used in the context of tests. It’s available for: Java, Python, Ruby, Objective-C, PHP, Erlang, Swift.

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Undertow is an open-source lightweight, flexible and performant Java server, they say. I can confirm that it’s
- lightweight: just have a look at those few lines of code to start a server and 1MB core JAR
- flexible: always feel free to provide your own implementations or use Undertow helpers to delegate usual server glue code to a more specific implementation you provide

I didn’t check or compare performance. It is the default server implementation of Wildfly Application Server and sponsored by JBoss.

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Introduction

A couple of years have passed since we last looked into in-memory caches here at ConSol. In that time a bunch of things have happened:

• Probably the most significant thing that happened was that the oldest Java Service Request JSR 107, also known as JCache, finally reached ‘Release’ status. This JSR was a long time in the making taking a whole 13 years since the initial proposal back in 2001.

• Grid Gains In-memory Data Fabric became an open source project and is now available under the Apache Foundation Project and known as Apache Ignite.

• The existing In-memory caches providers, like Hazelcast, have received a whole host of new features including things like support for distributed transactions, a new Map-Reduce API, interceptors for executing business logic, when the cache entries change, to mention just a few.

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The GoTo Conference Berlin is part of a conference series with stops in Berlin, Chicago, Amsterdam, Aarhus and Copenhagen. The 3 day conference was divided in workshops on the first day and talks on the second and third day.

The talks and the catering were very well organized. The only drawback was, that the WLAN wasn’t working most of the time.

Now lets go through the talks:

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Jatumba ConSolis! Zwei aufregende Tage gehen zu Ende und was können wir euch berichten? Das JavaLand hat einen super Start in der Welt der Konferenzen hingelegt! Sowohl die Speaker als auch die Atmosphäre ließen keine Zweifel offen, hier entsteht etwas Großes. Neben sieben parallelen Tracks, einem Hacker-Garten und zahlreichen Community-Aktivitäten gab es einen kompletten Freizeitpark zu entdecken.

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Tomorrow, I’ll be speaking on Infinispan at the JBoss One Day Talk 2013.

Slides can be found here: http://rawgithub.com/ConSol/reveal.js/2013-jbossOneDayTalk/index.html.

See you tomorrow!

Infinispan is included in the JBoss AS 7 distribution as the default second level cache for Hibernate.
For my presentation on the JBoss One Day Talk 2013,
I was looking for the most simple example to be used in a demo.
This post shows how to get Infinispan Hibernate 2nd Level Caching up and running in five minutes.
It should also work with the upcoming WildFly Application Server.

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Distributed caches have evolved into an independent branch of Big Data solutions: When it comes to fast read and write access, distributed caches are the solution of choice.

Dr. Fabian Stäber gave a talk a JayDay 2013 where he introduced and compared the leading distributed cache implementations:

• Ehcache / Terracotta
• Hazelcast
• Infinispan

Based on a simple example application, the basic functionality is presented, and the specific strengths and weaknesses of the different cache architectures are highlighted and compared.

The results of this ‘shootout’ and an executive summary can be found here at /java-caches and the example application is available from GitHub.

Start here …

The ConSol posse is on the road again for having a good and inspiring time at Devoxx. Devoxx is probably one of the best things what can happen to a Java developer. Marcel, Alvin, Jan and myself (Roland) will be at the show for the whole week, Christoph, Torsten and Christian will join us on wednesday.

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Got an an internationalized Java app?
Then the maven-rbc-plugin plugin can help you finding

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Devoxx is over and it’s time for a
summary. We, the Citrus posse ;-), enjoyed the trip to Antwerp very
much and came back with a bunch of new impressions. It was a pleasure
to be part of this Java community event with great speakers and
excellent talks.

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The last full conference day of the Devoxx was again packed full with very interesting talks of various kind. It started with a keynote about the roadmap of JEE 7. Summarizing we can expect some smooth refinements of the platform (exept maybe the support for virtualization out of the box). Here are our impression on the talks of Thursday. Please expect our summary blog post on monday since we are all now in rush to get out things done and to catch train, plain etc. We hope, you enjoyed the blog flood so far ;-)

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The rest of Citrus posse (Christoph, Martin, Ralf, Torsten) joined us
(Marcel, Roland) yesterday, so we are able to spread over much more
talks and will flood this blog with even more reports from interesting
Java talks.

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The second day at Devoxx continues with a university day, with much introductory talks.
BTW, catering was fine today, better than two years ago. I think the is worth mentioning, since this was one of the weak points last time we visited the Devoxx. Ah yes, Wifi is ok, too. Now for the talks ;-)

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Some of us ConSol Labs guys enter this year’s Devoxx, the largest
Java conference in Europe. You can expect some blogging about the
state of Java, the newest trends and cool stuff in general out there
for this week.

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