Jörn Dinkla's Blog

Nov 01, 2025 software-engineering

Announcing NKP 0.1: Static Analysis for Kotlin Projects

I’m excited to share the first MVP release of NKP (aNalysis of Kotlin Programs), a command-line tool for analyzing Kotlin codebases and uncovering architectural insights.

#jvm #architecture #kotlin #object-functional #quality-assurance

Read more arrow_forward

Jan 02, 2019 software-engineering

Fusion of object oriented and functional programming

The fusion of Object Oriented Programming (OOP) and Functional Programming (FP) languages has become increasingly popular in recent years, with many programming languages now offering features and constructs from both...

#kotlin #object-functional #scala #functional-programming

Read more arrow_forward

Jul 06, 2015 software-engineering

Covariance and Contravariance in Scala

The topic of covariance and contravariance is explained in many places (including Wikipedia). This post is my attempt to explain it in my own words, using Scala.

#scala #jvm #object-functional

Read more arrow_forward

Jul 06, 2015 software-engineering

Covariance and Contravariance in Scala

I explain "covariance and contravariance" with some simple Scala examples.

#scala #jvm #object-functional

Read more arrow_forward

Jul 06, 2015 big-data

Good Hands-on Introduction to Apache Spark

Anyone who wants to learn the basics of Spark is well-advised to read the book “Learning Spark”. I particularly liked that the book is very practice-oriented and that you can...

#review #distributed #object-functional

Read more arrow_forward

image

Jul 02, 2015 big-data

k-d-trees with Apache Spark and Scala

This article shows how to use k-d-trees with Apache Spark.

#data #scala #jvm #object-functional

Read more arrow_forward

Jun 17, 2015 software-engineering

A very good introduction to Scala

Scala is an important milestone in the fusion of functional and object-oriented programming. This fusion is not yet complete, but rather a “discovery process” that will continue for a few...

#scala #review #jvm #object-functional

Read more arrow_forward

image

Dec 17, 2014 software-engineering

Reviewer of Java 8 in Action

I bought the book in early access (MEAP) and decided to help as a reviewer.

#review #java #scala #jvm #object-functional

Read more arrow_forward

Dec 01, 2011 software-engineering

Very good in places, unpolished and too brief in others

Programming parallel and concurrent programs with shared memory and threads is complicated and very error-prone. Approaches such as Software Transactional Memory (STM), message-passing architectures, and actor models have been developed...

#parallelism #concurrency #jvm #review #object-functional

Read more arrow_forward

Dec 30, 2010 software-engineering