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Developing RESTful Services using Apache CXF

Introduction As you already know there are two ways of developing a web serviceSimple Object Access Protocol (SOAP) Representational State Transfer (REST)Before jumping on how to ...
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Lock Less Java Object Pool

It has been a while since I wrote anything, I have been busy with my new job that involves doing some interesting work on performance tuning. One of the challenges is to reduce object ...
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Lambdas: coming to a Java 8 near you!

What are Lambdas? A lambda expression is a type of anonymous function, that can be written inline within a method and used wherever expressions are used. Sometimes you might find them ...
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MapReduce Algorithms – Understanding Data Joins Part 1

In this post we continue with our series of implementing the algorithms found in the Data-Intensive Text Processing with MapReduce book, this time discussing data joins. While we are ...
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Printing Generated Assembly Code From The Hotspot JIT Compiler

Sometimes when profiling a Java application it is necessary to understand the assembly code generated by the Hotspot JIT compiler. This can be useful in determining what optimisation ...
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Garbage Collection in Java (3)

This follows on from my previous two garbage collection blog posts:Overview of GC in Hotspot. Parallel Garbage Collectors.Concurrent Mark Sweep The parallel garbage collectors in ...
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Reducing memory usage with String.intern()

Every now and then you have a dying production application at hand. And you know you need to patch it as fast as possible. So have we, and thought it would be interesting to share one ...
java-interview-questions-answers

Developing SOAP Web service using Apache CXF

In last post I walked through the steps for developing a simple RESTFull service using apache CXF.  In this post I will be talking about developing SOAP web service using CXF. Before ...
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Making Sense Out of Datomic, The Revolutionary Non-NoSQL Database

I have finally managed to understand one of the most unusual databases of today, Datomic, and would like to share it with you. Thanks to Stuart Halloway and his workshop! Why? Why?!? As ...
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Distributed System Development Considerations

There are a number of factors to take into account while developing distributed software systems. If you don’t even know what I am talking about in the first sentence then let me ...
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