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Simple CRUD using Servlet 3.0, Redis/Jedis and CDI – Part 1

In this post we will build a simple user crud. The data will be stored in Redis. To interact with Redis we will use Jedis library. CDI for Depedency Injection and Servlet 3.0 for the ...
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Adding Social Sign In to a Spring MVC Web Application: Registration and Login

The first part of this tutorial described how we can configure Spring Social 1.1.0 and Spring Security 3.2.0 but it left two very important questions unanswered. These questions are:How ...
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How to read CSV files in Java – A case study of Iterator and Decorator

In this post, I will talk about how to read CSV (Comma-separated values) files using Apache Common CSV. From this case study, we will learn how to use Iterator and Decorator in context ...
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Introduction to Java lambdas

The main theme of Java 8 is lambdas. I have noticed that for many Java programmers lambdas are pretty tough material. So let’s try to get a basic understanding of them. First ...
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Configure Your OSGi Services with Apache Felix File Install

A recent post about Managed Services reminded me of a feature in Apache Felix File Install that I found worth mentioning. While working on a project with Holger, I learned from him ...
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Running out of memory without the OutOfMemoryError

This is actually a reincarnation of a post originally posted in ~2010. The flashback occurred when listening to our engineers cursing at a particularly nasty bug raising its head yesterday. ...
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Setting up your application server with maven

In many cases there is no way to deploy an application without the need to setup your application before. In JBoss AS 7.x you may want to configure for example your database connection. ...
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Java7 – A look back

I started writing a blog post on what’s new in the upcoming Java8 release, and thought I would start by doing a quick look back at what Java7 brought to us. Java7 was released back ...
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Building Camel-CXF REST Service in OSGi for Karaf – Multicasting and Aggregation

Please check out my other post on building plain CXF services (without Camel) in OSGi on Karaf. This is a basic tutorial on how tocreate a CXF REST service multicast (and parallelize) ...
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Exploring Spring Controller with JSTL view

Let’s improve our previous Spring JDBC application with some more exploration on Spring MVC’s Controller development. I will show another exercise of writing a new Controller that ...
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