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Logging or debugging

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Debugging is lame. You should debug log. If your code is structured you do not need debug logging. These are two opinions from the two ends of the line. I am, as usually, standing in the middle, and I will tell you why. First of all, there is no principal difference between debugging versus logging. They are just two different ...

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Java 8 Friday Goodies: Easy-as-Pie Local Caching

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At Data Geekery, we love Java. And as we’re really into jOOQ’s fluent API and query DSL, we’re absolutely thrilled about what Java 8 will bring to our ecosystem. We have blogged a couple of times about some nice Java 8 goodies, and now we feel it’s time to start a new blog series, the… Java 8 Friday Every Friday, ...

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How To Succeed in Software Without a CS Degree

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This week I was approached by two individuals seeking advice on finding employment in a programming capacity, yet both lacked the traditional standard requirement for entry-level positions – the BS in CS (‘BSCS’). I get asked about entering the industry often, and each scenario has a unique wrinkle. The most recent candidates were a fresh Ivy League liberal arts grad ...

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Websockets with Spring 4

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I am throwing the entire kitchen sink into a small web application that I am developing as part of this post – Spring Boot, Spring Integration, RabbitMQ and finally the topic of the post, the Websocket support in Spring MVC with Spring 4. Real-time quake listing application The final app will list the earthquake occurrences around the world and is ...

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IDE vs. Editor

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Are you using an IDE, or an editor? Are you a “hardcore” programmer, or you are one of those sissy modern developers that use IDEs? Have you personalized your emacs or vim to make you 200% more productive? Or do you think that emacs is useless, at least for Java. Either way, it’s an interesting topic to discuss – what ...

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How to Eliminate Bugs Through High Cohesion

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Intuition tells us that methods like these ones suffer from a distinct code smell:                     CompilationTask getTask( Writer out, JavaFileManager fileManager, DiagnosticListener<? super JavaFileObject> diagnosticListener, Iterable<String> options, Iterable<String> classes, Iterable<? extends JavaFileObject> compilationUnits ); Why is that so? Let’s delve into this intuition. Here is an example from the JavaCompiler Javadoc: ...

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What’s new in Java 8 – Date API

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With the final release of Java 8 around the corner, one of the new features I’m excited about is the new Date API, a result of the work on JSR 310. While Lambda expressions are certainly the big draw of Java 8, having a better way to work with dates is a decidedly welcome addition. This is a quick post ...

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Signing SOAP Messages – Generation of Enveloped XML Signatures

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Digital signing is a widely used mechanism to make digital contents authentic. By producing a digital signature for some content, we can let another party capable of validating that content. It can provide a guarantee that, is not altered after we signed it, with this validation. With this sample I am to share how to generate the a signature for ...

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