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Should you trust the default settings in JVM?

JVMs are considered smart nowadays. Not much configuration is expected – just set the maximum heap to use in the startup scripts and you should be good to go. All other default settings ...
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Yammer Metrics, A new way to monitor your application

When you are running long term applications like web applications, it is good to know some statistics about them, like number of requests served, request durations, or the number active ...
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Discovering the power of Apache Camel

These last years, ESB software has been getting more and more popular. If most people usually know what is an ESB, they are fewer to clearly understand the exact role of the different ...
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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, ...
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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 ...
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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. ...
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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 ...
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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 ...
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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. ...
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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 ...
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