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Revealing the length of Garbage Collection pauses

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There are several ways to improve your product. One such way is to carefully track what your users are experiencing and improve based on that. We do apply this technique ourselves and have again spent some time looking at different data Besides many other aspects we were after, we also posed a question “what is the worst-case effect for latency ...

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The DSL Jungle

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DSLs are a common thing in the programming world nowadays. Many frameworks and tools decide to build a DSL for their…specific things. Builds tools are the primary candidates, but testing frameworks, web frameworks and whatnot also decide to define a DSL. With these DSLs you define build steps, web routing rules, test acceptance criteria, etc. What is the most common ...

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Legacy Code to Testable Code #4: More Accessors!

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This post is part of the “Legacy Code to Testable Code” series. In the series we’ll talk about making refactoring steps before writing tests for legacy code, and how they make our life easier. It continues the last post on accessors.   We talked about “setter” accessors as a mean to inject values. The other side of the coin is ...

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My Five Rules for Remote Working

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A couple of weeks ago, there was a stir (again) about remote working and its succes and/or failure: it was reported that Reddit, the website where many people lose countless of hours, were forcing all their employees to move to SF. After a similar thing happened at Yahoo last year it made me think about why remote work is such a huge success for us ...

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Spring Rest API with Swagger – Integration and configuration

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Nowadays, exposed APIs are finally getting the attention they deserve and companies are starting to recognize their strategic value. However, working with 3rd party APIs can be really tedious work, especially when these APIs are not maintained, ill designed or missing any documentation. That’s why I decided to look around for ways to provide fellow programmers and other team members ...

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How To Control Access To REST APIs

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Exposing your data or application through a REST API is a wonderful way to reach a wide audience. The downside of a wide audience, however, is that it’s not just the good guys who come looking.         Securing REST APIs Security consists of three factors: Confidentiality Integrity Availability In terms of Microsoft’s STRIDE approach, the security compromises ...

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Understanding strategy pattern by designing game of chess

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Today we will try to understand Strategy Pattern with the help of an example. The example we will consider is The Game of Chess. The intention here is to explain strategy pattern and not to build a comprehensive Chess Game solution. Strategy Pattern : The Strategy pattern is known as a behavioural pattern – it’s used to manage algorithms, relationships ...

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CallSerially The EDT & InvokeAndBlock (Part 1)

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We last explained some of the concepts behind the EDT in 2008 so its high time we wrote about it again, there is a section about it in the developer guide as well as in the courses on Udemy but since this is the most important thing to understand in Codename One it bares repeating. One of the nice things ...

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Ceylon: Planning the future of Ceylon 1.x

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With the release of Ceylon 1.1, we’ve reached a point where we need to do some serious thinking about what are our priorities for the development of Ceylon 1.1.5, 1.2, and beyond. I definitely don’t yet have a crystal clear vision of what is going to be in 1.2, so we’re also looking for community feedback on this. I do ...

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right-pad values with XSLT

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In this post an XSLT function that can be used to right-pad the value of an element with a chosen character to a certain length. No rocket science but this might become handy again so by putting it down here I don’t have to reinvent it later. The function itself looks like:               <xsl:stylesheet ...

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