List/Grid Yearly Archives: 2012

apache-hadoop-logo

MapReduce Algorithms – Order Inversion

This post is another segment in the series presenting MapReduce algorithms as found in the Data-Intensive Text Processing with MapReduce book. Previous installments are Local Aggregation, ...
java-logo

Java EE 7 Community Survey Results!

Work on Java EE 7 presses on under JSR 342. Things are shaping up nicely and Java EE 7 is now in the Early Draft Review stage. In beginning of November Oracle posted a little community ...
Spring-Security-logo

Authentication against a RESTful Service with Spring Security

1. Overview This article is focused on how to authenticate against a secure REST API that provides security services – mainly, a RESTful User Account and Authentication Service. 2. ...
java-interview-questions-answers

Google Guava BiMaps

Next up on my tour of Guava, is the BiMap, another useful collection type. It’s pretty simple really, a BiMap is simply a two way map. Inverting a Map A normal java map is a set ...
software-development-2-logo

The frustrations of the development

It’s busy period always before Christmas. Clients have ideas and request, we [at 2dwarfs] have started projects of our own, so we have interference. And although it’s always ...
java-logo

Increasing heap size – beware of the Cobra Effect

The term ‘Cobra effect’ stems from an anecdote set at the time of British rule of colonial India. The British government was concerned about the number of venomous cobra snakes. ...
jcg-logo

The Java Advent Calendar

The Java Advent Calendar is winter-festivities themed blog featuring (at least) one Java-related post per day between the 1st and 24th of December. The concept is rooted in the tradition ...
osgi-alliance-logo

How to Create Extensible Java Applications

Many applications benefit from being open to extension. This post describes two ways to implement such extensibility in Java. Extensible Applications Extensible applications are applications ...
java-logo

Of Hacking Enums and Modifying ‘final static’ Fields

In this newsletter, originally published in The Java Specialists’ Newsletter Issue 161 we examine how it is possible to create enum instances in the Sun JDK, by using the reflection ...
junit-logo

Using Builder Pattern in JUnit tests

This is not intended to be a heavily technical post. The goal of this post is to give you some guidelines to make your JUnit testing life more easy, to enable you to write complex scenarios ...
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