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Productive Developers are Smart and Lazy

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When I use the terms Smart, Lazy, and Developer, I mean the following: Smart as in intelligent and able to think things through (i.e. not smart-ass) Not a dreamer who never gets around to writing anything practical Lazy as in lazy-loading, that is wait to write code (i.e. not couch potato) Developer as in energetic and focused on building real-world ...

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Java 8 LongAdders: The Right Way To Manage Concurrent Counters

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I just lOvE new toys, and Java 8 has a bunch of them. This time around I want to talk about one of my favourites – concurrent adders. This is a new set of classes for managing counters written and read by multiple threads. The new API promises significant performance gains, while still keeping things simple and straightforward. As people ...

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Easter Hack: Even More Critical Bugs in SSL/TLS Implementations

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It’s been some time since my last blog post – time for writing is rare. But today, I’m very happy that Oracle released the brand new April Critical Patch Update, fixing 37 vulnerabilities in our beloved Java (seriously, no kidding – Java is simply a great language!). With that being said, all vulnerabilities reported by my colleagues (credits go to Juraj Somorovsky, Sebastian ...

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Grails Goodness: Extending IntegrateWith Command

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We can extend the integrate-with command in Grails to generate files for a custom IDE or build system. We must add a _Events.groovy file to our Grails projects and then write an implementation for the eventIntegrateWithStart event. Inside the event we must define a new closure with our code to generate files. The name of the closure must have the ...

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Agile – What’s a Manager to Do?

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As a manager, when I first started learning about Agile development, I was confused by the fuzzy way that Agile teams and projects are managed (or manage themselves), and frustrated and disappointed by the negative attitude towards managers and management in general. Attempts to reconcile project management and Agile haven’t answered these concerns. The PMI-ACP does a good job of ...

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JavaFX Tip 3: Use Callback Interface

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As a UI framework developer it is part of my job to provide ways to customize the appearance and behavior of my controls. In many cases this is done by allowing the framework user to register a factory on a control. In the past I would have created a factory interface for this and provided one or more default implementations within the framework. ...

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10 JDK 7 Features to Revisit, Before You Welcome Java 8

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It’s been almost a month Java 8 is released and I am sure all of you are exploring new features of JDK 8. But, before you completely delve into Java 8, it’s time to revisit some of the cool features introduced on Java 7. If you remember, Java 6 was nothing on feature, it was all about JVM changes and ...

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Android Shake to Refresh tutorial

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In this post we want to explore another way to refresh our app UI called Shake to Refresh. We all know the pull-to-refresh pattern that is implemented in several app. In this pattern we pull down our finger along the screen and the UI is refreshed: Even this pattern is very useful, we can use another pattern to refresh our ...

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Programmatic Access to Sizes of Java Primitive Types

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One of the first things many developers new to Java learn about is Java’s basic primitive data types, their fixed (platform independent) sizes (measured in bits or bytes in terms of two’s complement), and their ranges (all numeric types in Java are signed). There are many good online resources that list these characteristics and some of these resources are the ...

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