ListenableFuture in Guava

ListenableFuture in Guava is an attempt to define consistent API for Future objects to register completion callbacks. With the ability…

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Implementing custom Future

Last time we learned the principles behind java.util.concurrent.Future<T>. We also discovered that Future<T> is typically returned by libraries or frameworks.…

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java.util.concurrent.Future basics

Hereby I am starting a series of articles about future concept in programming languages (also known as promises or delays)…

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Breaking build is not a crime

For years I’ve been taught that breaking continuous integration build is something that should be avoided under all circumstances. Let…

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Don’t rely on unit tests alone

When you are building a complex system, barely testing components in isolation is not enough. It’s crucial, but not enough.…

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How aggressive is method inlining in JVM?

Ctrl + Alt + M is used in IntelliJ IDEA to extract method. Ctrl + Alt + M. It’s as…

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Spring Data JDBC generic DAO implementation – most lightweight ORM ever

I am thrilled to announce first version of my Spring Data JDBC repository project. The purpose of this open source…

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Probability distribution for programmers

This is one of these very simple programming puzzles I came across recently: given a function returning random integers from…

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@Cacheable overhead in Spring

Spring 3.1 introduced great caching abstraction layer. Finally we can abandon all home-grown aspects, decorators and code polluting our business…

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