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Proper decoding of URL parameters on the server-side in JBoss

I spent many hours today to figure out how to force a proper decoding of encoded characters in JSF applications running on JBoss (using JBoss 7 Final). The problem occurs when you have ...
spring-interview-questions-answers

Spring MVC: Session advanced

Not so long time ago I wrote a post about HTTP sessions in a Spring MVC application. That was the simple article with an emphasis on practical aspect of usage. In the end of the post ...
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Garbage Collection in Java (4)

G1: Garbage First The G1 collector is the latest collector to be implemented in the hotspot JVM. Its been a supported collector ever since Java 7 Update 4. Its also been publicly stated ...
java-interview-questions-answers

An Automated OSGi Test Runner

Among my fellow team members I was known for notoriously forgetting to maintain the (JUnit) test suite. I just can’t get this extra step of manually adding a test to a suite into ...
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Mini Search Engine – Just the basics, using Neo4j, Crawler4j, Graphstream and Encog

Continuing to chapter 4 of Programming Collection Intelligence  (PCI) which is implementing a search engine. I may have bitten off a little more than I should of in 1 exercise. Instead ...
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Testing Java 8 in 3 Easy Steps

tl;dr Use your CI Setup to test Java 8. The upcoming Java 8 release promises a bunch of new feature for Java developers, but there’s always a risk when upgrading that your code ...
java-interview-questions-answers

How to use Reflection to Document your Data Model based on JPA Annotations

So using JPA, Hiber­nate or EBeans is cool when you can just anno­tate your Java classes, but haven’t you always wished you could “gen­er­ate” doc­u­men­ta­tion of your ...
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Messaging with RabbitMQ

We previously published a brief tutorial showing how to set up a Spring RabbitMQ Template. Now, let’s take a step back for a broader view of what RabbitMQ is and how you might use ...
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The Dangers of Correlating Subtype Polymorphism with Generic Polymorphism

Java 5 has introduced generic polymorphism to the Java ecosystem. This has been a great addition to the Java language, even if we’re all aware of the numerous caveats due to generic ...
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Java 7 Swing: Creating Translucent and Shaped Windows

Java 7 Swing supports windows with transparency and non-rectangular shapes. The following screenshot shows a circular window created with 75% opacity. You can create a translucent window ...
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