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Deploying Identity Server over a JDBC Based User Store

With this post I am to demonstrate how to configure WSO2 Identity Server with a JDBC user store. For the demonstration I am using a MySQL user store, but same procedure applies to any ...
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Long Polling with Spring 3.2′s DeferredResult

In our last episode, the CEO of Agile Cowboys Inc had just hired a Java/Spring consultant by giving him the Porsche that he originally bought for his girlfriend. Being upset by the ...
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Dealing With Slow Resource Leaks

Finding resource leaks using Java-monitor Finding slow resource leaks is key to keeping your application servers up and running for very long times. Here I explain how I use Java-monitor ...
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Bean Manipulation using Dozer Framework

Introduction As you know you can copy file or folder from source location to destination location in any operating system. Have you ever thought about copy the java object which is ...
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Unit testing a Java Hadoop job

In my previous post I showed how to setup a complete Maven based project to create a Hadoop job in Java. Of course it wasn’t complete because it is missing the unit test part . In ...
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Optimizing Java Serialization – Java vs XML vs JSON vs Kryo vs POF

Perhaps I’m naive, but I always thought Java serialization must surely be the fastest and most efficient way to serialize Java objects into binary form. After all, Java is on ...
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JAAS-secured JAX-RS end point

With the advent of RESTFUL (JAX-RS) as the “preferred” way to create web service end points, for a long time I have always wondered how people implement security mechanism around ...
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Deep dive into Optional class API in Java 8

We all as Java programmers been through the situation where in we invoke a method to get some value and then instead of directly invoking some methods on the return value, we first ...
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Apache Camel Broker Component for ActiveMQ 5.9

Embedding Apache Camel inside the ActiveMQ broker provides great flexibility for extending the message broker with the integration power of Camel. Apache Camel routes also benefit in ...
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Thread Jiggling

Overview Thread jiggler is a simple testing framework for exercising code to find threading problems. It works by modifying classes bytecode at runtime to insert Thread.yield() calls ...
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