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Protect a REST service using HMAC (Play 2.0)

We have HTTPS, what more do we need? When you talk about security for REST based APIs, people often point to HTTPS. With HTTPS you can easily protect your services from prying eyes ...
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The Strategy Pattern

In a recent blog on I received a comment from Wojciech Soczy?ski about how the “strategy” pattern can be used to enforce the Single Responsibility Principle (SRP) when using Tell ...
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RabbitMQ: Scheduled Message Delivery

Earlier this month I gave a presentation at ComoRichWeb on RabbitMQ and one question from an attendee was “Is it possible to publish a message to be consumed at a later date?” I ...
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5 useful methods JSF developers should know

The aim of this post is a summary about some handy methods for JSF developers they can use in their day-to-day work. An utility class is a good place to put all methods together. I ...
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Play framework 2 quicktip: Scala console

When I first started to play with Scala, I was amazed by the Scala interactive interpreter (also known as REPL, read-evaluate-print-loop). It was one of those things that you never ...
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Configuring Quartz with JDBCJobStore in Spring

I am starting a little series about Quartz scheduler internals, tips and tricks, this is a chapter 0 – how to configure persistent job store. In Quartz you essentially have a ...
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Java 7’s Support for Suppressed Exceptions

A new constructor and two new methods were added to the Throwable class (parent of Exception and Error classes) in JDK 7. The new constructor and two new methods were added to support ...
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MANIFEST.MF and feature.xml versioning rules

I’m forever forgetting what the rules are for dependency declarations in MANIFEST.MF and feature.xml for osgi plugins and features. And Googling often results in frustration rather ...
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JavaFX 2 Form with Tron effect

This is a simple JavaFX Login Form with a TRON like effect. In this example I am using CSS to style the TextField and Button. Here is the snippet of the CSS and Effect code: .text-field{ ...
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Java EE Revisits Design Patterns: Asynchronous

Although you may not find Asynchronous method calls listed as a design pattern, I find it worth to mention. So here comes the last post of my JavaEE Revisits Design Patterns series. ...
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