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Building a REST service in Scala with Akka HTTP, Akka Streams and reactive mongo

At the end of last year I wrote a couple of articles that showed how you can use Spray.io to create a Scala based REST service () and how to create a websocket server with Scala, Akka ...
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Programmatically Determining Java Class’s JDK Compilation Version

When it is necessary to determine which JDK version was used to compile a particular Java .class file, an approach that is often used is to use javap and to look for the listed “major ...
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You Will Regret Applying Overloading with Lambdas!

Writing good APIs is hard. Extremely hard. You have to think of an incredible amount of things if you want your users to love your API. You have to find the right balance between:Usefulness Usability Backward ...
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The state of Scrum Mastering

As most readers will have worked out, I’m not a fan of Scrum Masters. Partly this is because I find it a very mixed up roll to start with (see my “Hard Core Scrum” post), partly ...
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Java 8 Optional is not just for replacing a null value

Overview In Java 8, you can return an Optional instead of return null; as you might do in Java 7. This may or may not make a big difference depending on whether you tend to forget to ...
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7 JIRA Integrations to Optimize Your Java Development Workflow

What are some of the best integrations available to optimize your JIRA workflow? I love finding ways to wring out some extra efficiency in my workflow. Watching those little automations ...
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SWT Look and Feel: Customize FlatScrollBar Color and More

Recently I introduced a custom slider control useful for improving the SWT look and feel of more subtle view layouts. Happily it seems the widget already found early adopters outside ...
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OptaPlanner – Scaling Vehicle Routing with Nearby Selection

OptaPlanner 6.2 has made big step forward for the Vehicle Routing Problem (VRP), Traveling Salesman Problem (TSP) and similar use cases. The new feature nearby selection enables it ...
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Do you really understand @WebService ?

SOAP web services are not cutting edge technology by any means – although it still has it’s place, REST based web services are offering tough competition. Anyway – this is definitely ...
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Testing Grunt Plugin From Grunt

Writing tests for grunt plugin turned out to be less straightforward then expected. I needed to run multiple task configurations and wanted to invoke them all by typing grunt test in ...
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