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A good, lazy way to write tests

Testing. I’ve been thinking a lot about testing recently. As part of code reviews I’ve done for various projects, I’ve seen thousands of lines of untested code. This is not just ...
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Java File Merging Goes Semantic

Talk to any programmer and ask him how a merge should be: “it should understand the code, parse it, and then merge based on the structure” – he’ll most likely say. And this ...
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JVM Performance Magic Tricks

HotSpot, the JVM we all know and love, is the brain in which our Java and Scala juices flow. Over the years, it’s been improved and tweaked by more than a handful of engineers, and ...
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Java EE CDI dependency disambiguation example

In this tutorial we shall show you how to avoid dependency disambiguation in CDI beans. In CDI we can achieve dependency injection for multiple implementations of an interface to different ...
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Android Studio Tutorial: Getting started with the new Android IDE

In May 15th, during Google’s I/O developer conference, a new developer suite called Android Studio was announced. It is a very powerful IDE based on the famous IntelliJ IDE. Android ...
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Design Patterns: Builder

Sometimes there is a need to create a complex object in application. The one solution for this is a Factory pattern, the another one is a Builder design pattern. In some situation you ...
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Null safety in Kotlin

Kotlin is a statically typed JVM language developed by Jetbrains. It has some good documentation so today I will focus on a tiny part of it – null safety.There are at least ...
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Spring Data Solr Tutorial: Adding Custom Methods to All Repositories

If we are using Spring Data Solr in a real life software project, the odds are that sooner or later we will face a requirement which states that our application must be able to communicate ...
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Factory Design Pattern – An Effective Approach

As you know the Factory Method Pattern or popularly known as the Factory Design Pattern is one the design patterns under the category of “Creational Design Pattern”. The ...
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Choosing Technology Stack to build a common platform

There are many talks in the Java community about Spring vs Java EE. Fans of one group would argue you should use one and not other etc. When I see this, I can’t help but think ...
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