Hash Code – Java's collections

Welcome back to Hash Code miniserie where you can read how the hash codes (non-cryptographic hashing algorithms) and hash collections work in different programming languages. This time let's take a look under the hood of Java's collections and Strings. How hash codes are generated for them? Let's check it out. Arrays Arrays in Java do… Continue reading Hash Code – Java's collections

Hash Code – Introduction

Welcome to the first article of the Hash Code miniserie where you can read how the hash codes (non-cryptographic hashing algorithms) and hash collections work in different programming languages. Every software engineer uses hash collections like Python's dictionary, Java's hash map or C++'s unordered map. You get them to know pretty early in your learning… Continue reading Hash Code – Introduction

Supervising JVM with Dynamic Attach and Golang

This post is a continuation of a series focused on monitoring & supervising untrusted JVM process that runs inside docker container provided by the third-party provider. In the first article I described how to share process namespace between containers, this article shows how to get a better understanding of the JVM process that we do… Continue reading Supervising JVM with Dynamic Attach and Golang

UTF-8 – the brilliant trick to rule them all

UTF-8 is probably the biggest invention in electronic text communication since the invention of the ASCII table in 1967 and remains so to this day. It dominated the World Wide Web in 2009 and it is used by almost 95% of websites nowadays. In fact, everybody uses it but many might be not aware of… Continue reading UTF-8 – the brilliant trick to rule them all

Sharing process namespace (PID) between containers managed by docker-compose

Every time I want to do non-standard things in docker I struggle a lot. Usually doing something not obvious but not impossible requires lots of Googling, reading the documentation and digging into Github repositories. This time wasn't any different… Continue reading Sharing process namespace (PID) between containers managed by docker-compose