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Legacy Code To Testable Code #2: Extract Method

This post is part of the “Legacy Code to Testable Code” series. In the series we’ll talk about making refactoring steps before writing tests for legacy code, and how they make ...
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A Java conversion puzzler, not suitable for work (or interviews)

A really hard interview question would be something like this:                   int i = Integer.MAX_VALUE; i += 0.0f; int j = i; System.out.println(j ...
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Integration testing done right with Embedded MongoDB

Introduction Unit testing requires isolating individual components from their dependencies. Dependencies are replaced with mocks, which simulate certain use cases. This way, we can ...
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Injecting domain objects instead of infrastructure components

Dependency Injection is a widely used software design pattern in Java (and many other programming languages) that is used to achieve Inversion of Control. It promotes reusability, testability, ...
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Spring @Configuration and injecting bean dependencies as method parameters

One of the ways Spring recommends injecting inter-dependencies between beans is shown in the following sample copied from the Spring’s reference guide here:                   @Configuration public ...
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10 Hosted Continuous Integration Services for a Private Repository

Every project I’m working with starts with a setup of continuous integration pipeline. I’m a big fan of cloud services, that’s why I was always using travis-ci.org. ...
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Exploding Job Offers and Multiple Offer Synchronization

A recent post by Y Combinator’s Sam Altman, Exploding Offers Suck, detailed his distaste for accelerators and venture capitalists who pressure entrepreneurs into critical decisions ...
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Factory Without IF-ELSE

Object Oriented Language has very powerful feature of Polymorphism, it is used to remove if/else or switch case in code. Code without condition is easy to read. There are some places ...
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Ceylon 1.1.0 is now available

Ten whole months in the making, this is the biggest release of Ceylon so far! Ceylon 1.1.0 incorporates oodles of enhancements and bugfixes, with well over 1400 issues closed. Ceylon ...
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WildFly subsystem for RHQ Metrics

For RHQ-Metrics I have started writing a subsystem for WildFly 8 that is able to collect metrics inside WildFly and then send them at regular intervals (currently every minute) to a ...
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