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This is Stuff: jUnit: Dynamic Tests Generation

Dynamic tests generation is useful when you need to run the same set of tests on many different input values or configurations. It can be achieved either using parametrized tests or ...
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URL shortener service in 42 lines of code in… Java (?!) Spring Boot + Redis

Apparently writing a URL shortener service is the new “Hello, world!” in the IoT/microservice/era world. It all started with A URL shortener service in 45 lines of Scala ...
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Java 8 : Functional VS Traditional

The business logic is the same : Given a String expression composed of visits / time like : “1/24h,1..3/3h,5/*” Then the result should be the following list of Strings: “1/24h”, “1/3h”,”2/3h”,”3/3h”, “5/1h”,”5/2h”,”5/3h”,”5/4h”,”5/5h”,until ...
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Clustered Idempotent Consumer Pattern with Infinispan

I’ve created a small project that shows how to use JBoss Infinispan with Apache Camel and the Idempotent Consumer Pattern to guarantee a message will not be processed twice in ...
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Pizza problem – builder vs decorator

Problem Statement We need to build the software for a pizza company who wants to prepare different types of pizzas, e.g Chicken Pizza, Flat Bread, Pepperoni Pizza with Extra Cheese, ...
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jinfo: Command-line Peeking at JVM Runtime Configuration

In several recent blogs (in my reviews of the books Java EE 7 Performance Tuning and Optimization and WildFly Performance Tuning in particular), I have referenced my own past blog posts ...
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My Favorite IntelliJ IDEA Features

I have been a long time user (and customer) of IntelliJ IDEA. I think I have started using it around 2005 or 2006, version 5.0 at the time. I was an Eclipse user back then. A few of ...
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Java Concurrency Tutorial – Atomicity and race conditions

Atomicity is one of the key concepts in multi-threaded programs. We say a set of actions is atomic if they all execute as a single operation, in an indivisible manner. Taking for granted ...
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Autoboxing, Unboxing, and NoSuchMethodError

J2SE 5 introduced numerous features to the Java programming language. One of these features is autoboxing and unboxing, a feature that I use almost daily without even thinking about ...
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Publish JAR artifact using Gradle to Artifactory

So I have wasted (invested) a day or two just to find out how to publish a JAR using Gradle to a locally running Artifactory server. I used Gradle Artifactory plugin to do the publishing. ...
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