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Making Your Boss Happy Is a False Objective

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We all have bosses. We also have customers who pay us for running their software projects. They are my bosses for the time of the contract. I’m also acting as a boss for developers who are working for teamed.io. It is obvious that a good employee/contractor is one who makes his boss/customer happy. But only a bad employee works toward ...

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XSL Transformation in Java: An Easy Way

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XSL transformation (XSLT) is a powerful mechanism for converting one XML document into another. However, in Java, XML manipulations are rather verbose and complex. Even for a simple XSL transformation, you have to write a few dozen lines of code — and maybe even more than that if proper exception handling and logging is needed. jcabi-xml is a small open ...

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How to Cut Corners and Stay Cool

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You have a task assigned to you, and you don’t like it. You are simply not in the mood. You don’t know how to fix that damn bug. You have no idea how that bloody module was designed, and you don’t know how it works. But you have to fix the issue, which was reported by someone who has no ...

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Sneak peek into the JCache API (JSR 107)

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This post covers the JCache API at a high level and provides a teaser – just enough for you to (hopefully) start itching about it ;-) In this post …. JCache overview JCache API, implementations Supported (Java) platforms for JCache API Quick look at Oracle Coherence Fun stuff – Project Headlands (RESTified JCache by Adam Bien) , JCache related talks ...

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The New Agile–Picking A Winner

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We’ve talked about scaling and methodology on how to build stuff, but hey, we want to know what to build, dammit! Unfortunately, SAFe, scrum, XP, or Lean Startup don’t talk about what we need to build. Just how to get it out the door. Picking a winning product seems like the holy grail. Business analysis and product management methods can ...

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How to secure Openfire XMPP server

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Introduction Instant Messaging (IM) or chat is a service used broadly today in many applications like google talk or the more recent google Hangouts, Yahoo! Talk etc. It is based on the Extensible Messaging and Presence Protocol (XMPP) or Jabber protocol. Usually, a client-server architecture is followed, where specially-built XMPP clients exchange XMPP messages with XMPP servers who propagate the ...

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Retrospective Dialogue Sheets updates and changes

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When I say changes, I’m not saying anything about changes to the sheets themselves. I mean I’ve been thinking about how I make the sheets available and I’m going to make two changes. Firstly, I’m going to remove the print-on-demand service for the sheets. Second, I’m going to remove the need to register before downloading a sheet. You can still ...

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SweetHomeHub: Home Control with Raspberry Pi and MQTT – Part 1

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Since quite a long time I am working on my universal Raspberry Pi based Intertechno-Remote (see former posts 1 2 3 4): I tried different approaches to trigger/control my remote control service via a custom HTTPServer/-Handler and a simple Vert.x verticle. Since MQTT v3.1.1 turns out as on of the de-facto standard protocols for the IoT I also implemented an ...

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Netflix Governator Tests – Introducing governator-junit-runner

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Consider a typical Netflix Governator junit test.                     public class SampleWithGovernatorJunitSupportTest { @Rule public LifecycleTester tester = new LifecycleTester(); @Test public void testExampleBeanInjection() throws Exception { tester.start(); Injector injector = tester .builder() .withBootstrapModule(new SampleBootstrapModule()) .withModuleClass(SampleModule.class) .usingBasePackages("sample.gov") .build() .createInjector(); BlogService blogService = injector.getInstance(BlogService.class); assertThat(blogService.get(1l), is(notNullValue())); assertThat(blogService.getBlogServiceName(), equalTo("Test Blog Service")); } } This ...

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Creating Android Apps with Groovy 2.4

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A few days ago Groovy 2.4 was released. One of the major news is that Groovy now officially supports Android application development. To see how this works I used Groovy to create a small ToDo list example application for Android. In this post I will show which steps are required to create an Android application with Groovy and how Groovy ...

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