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Why you should build an Immutable Infrastructure


Some of the major challenges today when building infrastructure are predictability, scalability and automated recovery. A predictable system will promote the exact same artifact that you tested into your production system so no intermittent failure can cause any trouble. A scalable system makes it trivial, especially automatically, to deal with any rise in traffic. And automated recovery will make sure ...

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How to Instantly Improve Your Java Logging With 7 Logback Tweaks


The benchmark tests to help you discover how Logback performs under pressure Logging is essential for server-side applications but it comes at a cost. It’s surprising to see though how much impact small changes and configuration tweaks can have on an app’s logging throughput. In this post we will benchmark Logback’s performance in terms of log entries per minute. We’ll ...

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Identifying JVM – trickier than expected


In Plumbr we have spent the last month by building the foundation for future major improvements. One of such building blocks was addition of the unique identifier for JVM in order to link all sessions from the same JVM together. While it seems a trivial task at the beginning, the complexities surrounding the issue start raising their ugly heads when ...

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How Pairing & Swarming Work & Why They Will Improve Your Products


If you’ve been paying attention to agile at all, you’ve heard these terms: pairing and swarming. But what do they mean? What’s the difference? When you pair, two people work together to finish a piece of work. Traditionally, two developers paired. The “driver” wrote the piece of work. The other person, the “navigator,” observed the work, providing review, as the ...

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New in JAX-RS 2.0 – @BeanParam annotation


JAX-RS is awesome to say the least and one of my favorites! Why? Feature rich Intuitive (hence the learning curve is not as steep) Easy-to-use and develop with Has great RIs – Jersey, RestEasy etc There are enough JAX-RS fans out there who can add to this! JAX-RS 2.0 is the latest version of the JSR 311 specification and it ...

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Keeping things DRY: Method overloading


A good clean application design requires discipline in keeping things DRY: Everything has to be done once. Having to do it twice is a coincidence. Having to do it three times is a pattern. — An unknown wise man Now, if you’re following the Xtreme Programming rules, you know what needs to be done, when you encounter a pattern: refactor ...

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FX Playground


Introduction FX Playground is a JavaFX-based prototyping tool or live editor that eliminates the step of compiling Java code. This concept isn’t new, for instance the Web world there are many HTML5 playgrounds that offer online editors that enable developers to quickly prototype or experiment with various JavaScript libraries. This allows the developer to focus on visualizations or UI details ...

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How to Evaluate Job Offers


At some point in a career, many will be in a position to decide between multiple job offers from different companies – or at worst having to decide between accepting a new job or staying put. When starting to compare offers, it is common for the recipient to focus on the known quantities (i.e. salary, bonus, etc.) and perhaps a couple additional details that are generally ...

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