Bozhidar Bozhanov

About Bozhidar Bozhanov

Senior Java developer, one of the top stackoverflow users, fluent with Java and Java technology stacks - Spring, JPA, JavaEE. Founder and creator of Computoser and Welshare. Worked on Ericsson projects, Bulgarian e-government projects and large-scale online recruitment platforms. Member of the jury of the International Olympiad in Linguistics and the Program committee of the North American Computational Linguistics Olympiad.

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RabbitMQ in Multiple AWS Availability Zones

When working with AWS, in order to have a highly-available setup, once must have instances in more than one availability zone (AZ ≈ data center). If one AZ dies (which may happen), ...
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You Probably Don’t Need a Message Queue

I’m a minimalist, and I don’t like to complicate software too early and unnecessarily. And adding components to a software system is one of the things that adds a significant amount ...
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How to Handle Incompetence?

We’ve all had incompetent colleagues. People that tend to write bad code, make bad decisions or just can’t understand some of the concepts in the project(s). And it’s never trivial ...
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Integration Tests for External Services

Our systems often depend on 3rd party services (They may even be services internal to the company that we have no control on). Such services include Social Networks exposing APIs, SaaS ...
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The Low Quality of Scientific Code

Recently I’ve been trying to get a bit into music theory, machine learning, computational linguistics, so I ended up looking at libraries and tools written by the scientific community ...
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Development “Methodologies”

Below are several development “methodologies” that are popular and even industry-standard: Hype-Driven Development – you are either a startup, or you are given the freedom to ...
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Scheduling Repeated Tasks in Android

A somewhat common usecase for android applications is to have them launched when the phone is started, and execute some piece of code periodically. Sounds straightforward, but there ...
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Common Misconceptions About Java

Java is the most widely used language in the world ([citation needed]), and everyone has an opinion about it. Due to it being mainstream, it is usually mocked, and sometimes rightly ...
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Fixing The Android Camera API

The other day I participated in a company hackathon and I decided to make use of the Android camera. I’ve always said that the Android APIs are very bad (to put it mildly), but I’ve ...
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The Optional Type API

Java 8 introduces the Optional class. In a nutshell, instead of returning null, and then checking for null, you return an Optional instance, which can either have or not have a value ...
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