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OutOfMemoryError: Java heap space – Analysis and resolution approach

 java.lang.OutOfMemoryError: Java heap problem is one of the most complex problems you can face when supporting or developing complex Java EE applications.This short article ...
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Spring & JSF integration: Pagination

When working with large datasets you often need to present data in a paged format. Pagination is an interesting problem because it tends to cut across all layers of your application, ...
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Spring Testing Support with TestNG

TestNG is a test framework which is designed to cover all categories of tests: unit, functional, end-to-end, integration, (etc). It includes a lot of features such as flexible test ...
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JavaFX 2 GameTutorial Part 3

Introduction This is part 3 of a six part series related to a JavaFX 2 Game Tutorial. If you’ve missed Part 1 and Part 2, I encourage you to go through them before beginning this ...
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Book review: ‘Are you smart enough to work at Google?’

You need to toss a coin for a football match. The only coin you have is bent and biased towards one outcome. How do you use the coin and ensure a fair toss? I love a good a puzzle ...
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Implementing Master Slave / Grid Computing Pattern in Akka

Master Slave pattern is a prime example of fault tolerance and parallel computation. The idea behind the pattern is to partition the work into identical sub tasks which are then delegated ...
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Apache Shiro Part 3 – Cryptography

Besides securing web pages and managing access rights Apache Shiro does also basic cryptography tasks. The framework is able to:encrypt and decrypt data, hash data, generate ...
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Understanding how OSGI bundles get resolved

I’d like to review how OSGI bundles get resolved and use Apache Karaf to demonstrate. Karaf is a full-featured OSGI container based on the Apache Felix kernel and is the corner stone ...
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A crash course in Scala types

After many years of Java development, discovering Scala’s type system and related features was something of a departure for me. Suffice to say GADT wasn’t my first four letter ...
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XML unmarshalling benchmark: JAXB vs STax vs Woodstox

Introduction Towards the end of last week I started thinking how to deal with large amounts of XML data in a resource-friendly way.The main problem that I wanted to solve was how ...
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