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Which is better option: Cloning or Copy constructors?

Here is how I started writing this article. I have read this statement so many times: “Cloning becomes difficult when the object has references to mutable final fields.” And every ...
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Simple Message Queue using Redis

In this posts we will use Redis as a simple message queue, using list commands. Let’s say we have an application that allows the users to upload a photo. Then in the application we ...
spring-interview-questions-answers

What’s new in Spring

Let’s check on some new releases announced by the Spring community over the previous days:Spring Boot 1.0.0.RC1 Spring was pleased to announce the first release candidate of ...
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Proof-of-Concept Using Spring Roo

In my time with Keyhole, I’ve been involved in a number of projects where the client was asking us to rewrite a legacy system while retaining their existing database. Sometimes it ...
java-interview-questions-answers

TestNG: Run tests sequentially with @DataProvider inside one test class

Many java developers and automation test engineers use TestNG as a testing framework in their job. I’m not an exception. This is an obvious choice because TestNG provides very powerful ...
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Drools : PHREAK Stack Based Evaluations and Backward Chaining

A while back I wrote a blog on our new algorithm: http://blog.athico.com/2013/11/rip-rete-time-to-get-phreaky.html Someone asked me about the new stack based system, and how backward ...
java-interview-questions-answers

Playing with JerseyTest (Jersey 2.5.1 and DI)

I’m going to try explaining a trivial REST example. The idea is building a basic schema to start playing with Jersey. When I begin to use some framework, I usually develop a test ...
java-interview-questions-answers

JArchitect v4.0 Released

JArchitect version 4.0 is now available, as announced by JArchitect v4.0 Released. JArchitect can help java developers manage a complex Java code base. You can easily analyze code structure, ...
java-interview-questions-answers

Project Student: Maintenance Webapp (read-only)

This is part of Project Student. Other posts are Webservice Client With Jersey, Webservice Server with Jersey, Business Layer, Persistence with Spring Data, Sharding Integration Test ...
spring-interview-questions-answers

Spring from the Trenches: Invoking a Secured Method from a Scheduled Job

Let’s assume that we have implemented a Spring powered application, and secured it by using the method security expressions of Spring Security. Our next task is to implement a scheduled ...
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