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JBoss HornetQ for Kids, Parents and Grandparents – Chapter 1

It’s now almost 4 years that I’m working with HornetQ and I think it’s time to share part of what I learnt so far. The main purpose of this post is not to rewrite the official ...
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Spring 3.1 – Loading Properties For XML Configuration From Database

Spring makes it easy to inject values obtained from properties files via its PropertyPlaceholderConfigurer and (pre-Spring 3.1) PropertySourcesPlaceholderConfigurer (Spring 3.1). These ...
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Let’s turn packages into a module system!

Many projects are divided into modules/subprojects using the build system (Maven, Gradle, SBT …); and writing modular code is generally a Good Thing. Dividing the code into build ...
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Running HTTP/REST Integration Tests efficiently in Eclipse

Lately I had a chance to use the OSGi-JAX-RS-Connector library written by my dear fellow Holger Staudacher. The connector enables you to publish resources easily by registering @Path ...
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Signing Java Code

In a previous post, we discussed how to secure mobile code.One of the measures mentioned was signing code. This post explores how that works for Java programs. Digital Signatures The ...
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Stress/Load-Testing of Asynchronous HTTP/REST Services with JMeter

Although I have been using JMeter for stress- and load-testing of web applications a good few times it took us a while to figure out how to test asynchronous HTTP/REST based services ...
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Spring MVC Error Handling Example

This post describes the different techniques to perform error handling in Spring MVC 3. The code is available on GitHub in the Spring-MVC-Error-Handling directory. It is based on ...
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Investigating Deadlocks – Part 5: Using Explicit Locking

In my last blog I looked at fixing my broken, deadlocking balance transfer sample code using both Java’s traditional synchronized keyword and lock ordering. There is, however, an ...
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Running Drools 5.4.0 Final as a JBoss AS 7 module

Drools 5 introduces the Business Logic integration Platform which provides a unified and integrated platform for Rules, Workflow and Event Processing. It’s been designed from the ...
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Deep diving into Cloning

Before we proceed with the cloning concept let’s refresh our basics with the object creation concept. When the objects are created using the new operator the objects gets the memory ...
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