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Spring JMS, message automatic conversion, JMS template

In one of my projects I was supposed to create a message router that like all routers was supposed to take the JMS messages from one topic and put it into another one. The message itself ...
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When Maven Dependency Plugin Lies

Problem: We had an integration test which creates a spring ClassPathXmlApplicationContext and while doing so the test blew up with a NoSuchMethodError. It turned out that we had conflicting ...
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Concepts of SNMP (including v3)

SNMPPurpose. SNMP is a protocol for getting the status (e.g., CPU load, free memory, network load) of computing devices such as routers, switches and even servers. Object descriptor, ...
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Why a synchronized StringBuffer was never a good idea

Introduction StringBuffer is a synchronized class for mutable strings.  The main problem with making it synchronized is thatIt was usually used as a local variable so making it synchronized ...
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Simulation of time consuming actions in integration tests

Quite recently in one of my projects I had a situation in which I needed to create an integration test for the application. That’s not very odd isn’t it? What was interesting ...
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The Art of War: How it Applies to Software

Sun Tzu wrote: War is of vital importance to the state; hence it is a subject of inquiry which can on no account be neglected In our modern world, software is of vital importance to ...
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A Theorical Look into Object/Resource Pool Pattern

Definition: Sometimes our software projects need costly object creations (database connections, socket connections, large graphical objects etc.). This cost may be about time and/or ...
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How many classes and packages should you have?

Real world experience. Once upon a time there lived a family of programming bears. Each morning mammy bear, daddy bear and baby bear would rise and eat breakfast together in their secluded ...
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Spring AOP in security – controlling creation of UI components via aspects

The following post will show how in one of the projects that I took part in we used Spring’s AOP to introduce some security related functionalities. The concept was such that ...
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What is Big Data – Theory to Implementation

What is Big Data? You may ask; and more importantly why it is the latest trend in nearly every business domain? Is it just a hype or its here to stay? As a matter of fact “Big Data” ...
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