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Call to verify responsiveness of your JavaFX UIs

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Recently Jim Weaver installed my little picture indexing app “picmodo” for a demo on his Surface Pro and the GUI became a pice of junk. Obviously the basic font size of JavaFX on a Windows Tablet is to high:                 I assume, too absolute sizes and positions are not always the best idea, ...

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Continuous Deployment with Java EE 7, WildFly, and Docker – (Hanginar #1)

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This blog is starting a new hanginar (G+ hangout + webinar) series that will highlight solutions, frameworks, application servers, tooling, deployment, and more content focused on Java EE. These are not the usual conference-style monologue presentations, but are interactive hackathons where real working stuff is shown, and is mostly code-driven. Think of this as a mix of, and inspired by, Nighthacking (@_nighthacking), Virtual JUG (@virtualjug), and ...

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It is all X or Y management – and why Agile people should read Mintberg

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In the last few years it has become increasingly common to hear Agile supporters talking about Beyond Budgeting, indeed, I was instrumental in inviting Bjarte Bogsnes to deliver at keynotes at Agile on the Beach this year. Agile and Beyond Budgeting are very different, one is mainly about developing software and other is concerned with budgeting, strategic management and personnel ...

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Swing and JavaFX: working with JFXPanel

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I soon will have to deal with JavaFX in a Swing based fat client – oh sorry, of course I meant “multi-layered rich-client”! So this brings me to have a look at the JFXPanel. The JFXPanel is a javax.swing.JComponent to embed JavaFX content into Swing-UIs. A JFXPanel can be used similar to a JPanel and can be accessed via the ...

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Building and Testing JSF.next

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The JSF 2.3 Expert Group is hard at work determining which features will be part of the upcoming release.  The JSF Team been working hard improving CDI alignment, among other things.  There are already a number of new features in the JSF 2.3 codebase that you can begin to test. I will attempt to keep this post updated with the ...

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It’s All About Tests – Part 2

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This is the second post of the series about testing. In the first part I explained about the mindset we need to have while developing with tests. Or, in better words, developing for testable code. In this part I will cover some techniques for testing approach. The techniques I will describe can be seen as how to transform the mindset ...

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A beginner’s guide to Java time zone handling

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Basic time notions Most web applications have to support different time-zones and properly handling time-zones is no way easy. To make matters worse, you have to make sure that timestamps are consistent across various programming languages (e.g. JavaScript on the front-end, Java in the middle-ware and MongoDB as the data repository). This post aims to explain the basic notions of ...

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Arquillian tests on a WildFly instance hosted on OpenShift

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Tech Tip #54 explained how to enable Arquillian for an existing Java EE project. In that tip, the tests were run against a locally installed WildFly server. Would the same adapter work if this WildFly instance was running on OpenShift ? No! Because the security constraints and requirement of a PaaS, as opposed to a xlocalhost, are different. Lets take a look at what’s required ...

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Between 0 and 1 – PWM with Raspberry Pi

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Switch on and off an LED and let run a motor at one speed and direction is easy, but what if I want to e.g. control the brightness of an LED or control motor-speed? A kind of analog signal is needed: This is done with Pulse-width modulation (PWM). PWM is a “modulation technique that conforms the width of the pulse, ...

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