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Integration Testing with Selenium

Overview I’ve been using this for sometime and I’ve come across a few things that appear to make life easier. I thought I’d share this as a tutorial, so I’ll walk you through these parts: Setting up a web project using Maven, configuring Selenium to run as an integration test on a C.I. Look into good ways to model the ...

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IBM JVM tuning – gencon GC policy

This article will provide you detail on an important Java Heap space tuning consideration when migrating from a Java VM such as HotSpot or JRockit to the IBM JVM. This tuning recommendation is based on a recent troubleshooting and tuning mandate I performed for one of my IT clients. IBM JVM overview As you probably saw from my other articles, ...

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Java EE Revisits Design Patterns: Observer

Aside from being implemented in many languages and many applications, Observer Pattern has been a part of Java since version 1.0. Observer Pattern is also a good implementation of Hollywood Principle. Just like Agents in Hollywood like to callback the candidates for a role instead of being called daily to be asked about available jobs, most of the server side ...

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What is Spring Integration?

spring-interview-questions-answers

As the Spring Integration project slowly gains more adoption and interest, developers in the enterprise integration or enterprise development space will most likely come across it. They may find it interesting, but not fully understand what it is, what problems it was created to solve, where they can get more information, and where it fits within the open-source ecosystem of ...

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Threading stories: about robust thread pools

Another blog of my threading series. This time it’s about thread pools, robust thread pool settings in particular. In Java thread pools are implemented by the ThreadPoolExecutor class introduced in Java 5. The Javadoc of that class is very well organized. So I spare me the effort to give a general introduction here. Basically, what ThreadPoolExecutor does is, it creates ...

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Monitoring : Making sense of the buzz word jungle

Nowadays we are constantly reminded of the virtues of being proactive or more colloquially put “Being one step ahead of the game” when it comes to handling our businesses whether it be a SME or a multi-national cooperation. Quickly detecting or in some cases even predicting, trends in activities originating within and outside the organization and streamlining business activities accordingly ...

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MOXy as Your JAX-RS JSON Provider – Server Side

In a previous series of posts I covered how EclipseLink JAXB (MOXy) can be leveraged to create a RESTful data access service. In this post I will cover how easy it is to leverage MOXy’s new JSON binding on the server side to add support for JSON messages based on JAXB mappings. MOXy as Your JAX-RS JSON Provider – Server ...

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JRockit jrcmd tutorial

This article will provide you an overview and tutorial on how you can perform an initial analysis and problem isolation of a JRockit Java Heap problem using the jrcmd tool. A deeper analysis and tutorial using JRockit Mission Control and Heap Dump analysis (JRockit version R28+ only) will be covered in future articles. For a quick overview of the JRockit ...

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