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Contracting in Agile – You try it

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One of the key principles in Agile development is “Customer collaboration over contract negotiation” Unfortunately, that means that if you’re trying to follow Agile methods, you’re left without useful guidelines to follow when it comes to contracting and coming up with contracts that fit the way that Agile teams work. Time-and-materials of course is a no-brainer, regardless of how the ...

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Java 7: HashMap vs ConcurrentHashMap

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As you may have seen from my past performance related articles and HashMap case studies, Java thread safety problems can bring down your Java EE application and the Java EE container fairly easily. One of most common problems I have observed when troubleshooting Java EE performance problems is infinite looping triggered from the non-thread safe HashMap get() and put() operations. ...

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Product Management Slowing You Down?

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Does product management slow down your company? What Causes Your Business to Be Slow? Paul Young put out the call for the third annual You Might Be A Product Manager… list. If you are spending your holiday wondering if Jason Calacanis is right, and product management is actually preventing your company from being successful, you might be a product manager. ...

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A Prototype is Worth a Thousand Lines of Code

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A picture is worth a thousand words. A prototype is worth a thousand lines of code. Two key elements of product management – and of agile development are elicitation and feedback. Low fidelity artifacts can significantly improve both. Polished, codified prototypes can create problems that prevent you from getting the benefits of communication. Prototyping Anti-Pattern David Bernstein has three good ...

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JavaFX 2 GameTutorial Part 5

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Introduction This is part five of a six part series related to a JavaFX 2 Game Tutorial. I know it’s been a long time since I blogged about gaming, but hopefully you’re still with me. If you would like a recap, please read Part 1, Part 2, Part 3, and Part 4 to find out where we left off. If ...

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Android – Load images from web and caching

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Have you gone through my previous article for Loading Remote Images in android?, actually it was the solution for loading images from web but not caching into the local storage so that it has to load image every times, instead here in this article i am going to show you code/demo for loading images from web as well as to ...

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Tips for testing with Java

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Introduction I love automated testing. In a rare diversion into op-ed1 I thought a put few thoughts (read – opinions) together. Before I start on how best to compose your tests, I briefly ask – What are the reasons for testing? Broadly, I think they are: Reduce total number of bugs / increase product stability Ensure software works as per ...

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JSF Component Libraries – Quality is more than zero bugs

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It has been a while since I last looked at the quality of the three major JSF component libraries. In December 2009 I started a comparison of the overall software quality of RichFaces, Primefaces and ICEfaces. Things have changed since than and I wanted to re-evaluate and update this since some time now. The tools I used back in 2009 ...

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Keep The Code Clean: WatchDog & SpotTheBug Approach

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Before going to discuss ‘ WatchDog & SpotTheBug Approach‘, let me give a brief context on what is the needs for this. Three months back I was asked to write core infrastructure code for our new application which uses all the latest and greatest technologies. I have written the infrastructure code and implemented 2 usecases to demonstrate which logic should ...

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How to manage Quartz remotely

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Option 1: JMX Many people asked can they manage Quartz via JMX, and I am not sure why Quartz doc won’t even mention it. Yes you can enable JMX in quartz with the following in quartz.properties org.quartz.scheduler.jmx.export = true After this, you use standard JMX client such as $JAVA_HOME/bin/jconsole to connect and manage remotely. Option 2: RMI Another way to ...

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