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Augmenting 3rd-Party Libraries

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For every project I’ve participated in, there has been a need for augmenting some third-party library. A couple of reasons: there’s a bug there’s missing functionality there’s functionality that doesn’t work as you need it to What do you do in these cases? Obviously, you report the problem or even suggest a fix. But until that goes into the next ...

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Why You Scared Off the Ninja

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The saying goes you never get a second chance to make a first impression, and it is well-documented that this is never more true than in the effort to hire great technical talent. Complaints about the interview practices of some companies and anecdotes about how recruiters make foolish approaches are quite popular reads lately. As someone in the hiring business, ...

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Installing TomEE from Puppet

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Apache TomEE is an all-Apache stack aimed at Java EE 6 Web Profile certification where Tomcat is top dog. It is the conjunction of Tomcat + Java EE. Puppet is a tool designed to manage the configuration of our systems declaratively. We only have to describe system resources and their state. This description is stored in the core-files of Puppet, ...

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Lies, statistics and vendors

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Overview Reading performance results supplied by vendors is a skill in itself.   It can be difficult to compare numbers from different vendors on a fair basis, and even more difficult to estimate how a product will behave in your system. Lies and statistics One of the few quotes from University I remember goes roughly like this:   Peak Performance – A ...

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Upload on Amazon S3 with the jclouds library

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There are several good ways to upload content to an S3 bucket in the Java world – in this article we’ll look at what the jclouds library provides for this purpose. To use jclouds – specifically the APIs discussed in this article, this simple Maven dependency should be added to the pom of the project:           ...

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JavaFX Library for Inverse Kinematics 2.0

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This is the first tutorial explaining the basics of javafx-ik, a library for inverse kinematics with JavaFX. The sources of the library can be downloaded from GitHub. What is a Bone object ? A bone is the fundamental building block for inverse kinematics with the library  javafx-ik. A bone has a length and a joint around which it can be ...

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Glassfish plugin for JDeveloper 11gR2

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As some of you already know, ADF Essentials is a great framework for building web applications using java and it is free to develop and free to deploy. You deploy ADF Essentials applications on Glassfish (3.1+) server. Nevertheless, JDeveloper does not come with an embedded Glassfish server but with an embedded Weblogic server. In this post, we are going to ...

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Spring MVC Form Validation (With Annotations)

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This post provides a simple example of a HTML form validation. It is based on the Spring MVC With Annotations example. The code is available on GitHub in the Spring-MVC-Form-Validation directory.                 Data For this example we will use a bean and JSR303 validation annotations: public class MyUser { @NotNull @Size(min=1,max=20) private String name; @Min(0) @Max(120) private ...

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“Booting AMX” in GlassFish 3 with Groovy

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In my previous blog post, I looked at using JMX as one of multiple methods supported by GlassFish 3 for its administration, monitoring, and management. In this blog post, I look in more detail at monitoring and managing GlassFish 3 via JMX and Groovy. I focus on local connection to GlassFish using the Attach API in this post, but I ...

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