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Java 7: How to write really fast Java code

When I first wrote this blog my intention was to introduce you to a class ThreadLocalRandom which is new in Java 7 to generate random numbers. I have analyzed the performance of ThreadLocalRandom ...
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The Wizard Design Pattern

We all love wizards…. (Software wizards I mean). We are always happy to jump on those ”Next” buttons like we were dancing the funky chicken on our… well you get ...
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JSF and the “immediate” Attribute – Command Components

The immediate attribute in JSF is commonly misunderstood. If you don’t believe me, check out Stack Overflow. Part of the confusion is likely due to immediate being available ...
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Java 7 – The NIO File Revolution

Java 7 (“Project Coin”) has been out since July of last year. The additions with this release are useful, for example Try with resources – having closable resources handled automatically ...
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XML parsing using SaxParser with complete code

SAX parser use callback function (org.xml.sax.helpers.DefaultHandler) to informs clients of the XML document structure. You should extend DefaultHandler and override few methods to ...
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GWT – Pros and Cons

I love JavaScript. With the advent of jQuery and Mootools, my love for JavaScript has only increased plenty-fold. Given a choice I would use either of the aforementioned frameworks ...
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WhateverOrigin – Combat the Same Origin Policy with Heroku and Play! Framework

A little while ago, while coding Bitcoin Pie, I found the need to overcome the notorious Same Origin Policy that limits the domains javascript running on a client’s browser can access. ...
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if – else coding style best practices

The following post is going to be an advanced curly-braces discussion with no right or wrong answer, just more “matter of taste”. It is about whether to put “else” (and other ...
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REST Pagination in Spring

This is the seventh of a series of articles about setting up a secure RESTful Web Service using Spring 3.1 and Spring Security 3.1 with Java based configuration. This article will focus ...
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Streaming Files from MongoDB GridFS

Not too long ago I tweeted what I felt was a small triumph on my latest project, streaming files from MongoDB GridFS for downloads (rather than pulling the whole file into memory and ...
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