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Making Plain Old Java OSGi Compatible

Although OSGi is increasingly popular in the Java world, there are many Java applications and libraries that have not been designed to work in OSGi. Sometimes you may need to run such code inside an OSGi environment, either becaus ...
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JSON-Schema in WADL

In between other jobs I have been recently been reviewing the WADL specification with a view to fixing some documentation problems with a view to producing an updated version. One of the things that because apparent was the lack o ...
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Simple Workflow Engine With Spring

Few months ago, during working on one of the company project, we had need to developed REST services which is used for sending an email depending on data sent by client application. During developing this service we decide to crea ...
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Embedding HSQLDB server instance in Spring

I was using XAMPP happily for development until I had to host it somewhere accessible via the Internet for the client to test and use. I have a VPS that only has 384 RAM, and needing to find a way fast, I decided to install XAMPP ...
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Spring 3.1, Cloud Foundry and Local Development

This post will help you build a Spring 3.1 web application using MongoDB on Cloud Foundry. In addition to pushing to Cloud Foundry, you will also be able to develop in your local environment with a MongoDB instance. Goals The goal ...
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Hadoop + Amazon EC2 – An updated tutorial

There is an old tutorial placed at Hadoop’s wiki page: http://wiki.apache.org/hadoop/AmazonEC2, but recently I had to follow this tutorial and I noticed that it doesn’t cover some new Amazon functionality. To follow th ...
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Sandboxing Java Code

In a previous post, we looked at securing mobile Java code. One of the options for doing so is to run the code in a cage or sandbox. This post explores how to set up such a sandbox for Java applications. Security Manager The secur ...
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Why Future Generations Will Hate You for Using java.util.Stack

Before I kill you with some meaningless tautology, here is the gistIf your application is near real time or you are sending your code to Mars, you need to keep off the default Stack implementation in Java. Write your own version ...
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Basics about Servlets

Through this tutorial i will try to get you closer to the Java Servlet Model. Before we start with examination of classes defined within the servlet specification, i will explain basic stuff needed to know before you start with de ...
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Java 7: File Filtering using NIO.2 – Part 3

Hello all. This is Part 3 of the File Filtering using NIO.2 series. For those of you who haven’t read Part 1 or Part 2, here’s a recap. NIO.2 is a new API for I/O operations included in the JDK since Java 7. With thi ...
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