Niels Dommerholt's Weblog on Software Engineering and Architecturehttps://niels.nu/en-gbhttps://niels.nu/blog/2026/from-jbake-to-astro/https://niels.nu/blog/2026/from-jbake-to-astro/Out with the old, in with the new.Wed, 15 Apr 2026 00:00:00 GMThttps://niels.nu/blog/2026/adhd-1-diagnosis/https://niels.nu/blog/2026/adhd-1-diagnosis/On discovering ADHD in my forties, and what I wish I'd known soonerSun, 29 Mar 2026 00:00:00 GMThttps://niels.nu/blog/2026/conversation-on-what-you-are/https://niels.nu/blog/2026/conversation-on-what-you-are/Sat, 07 Mar 2026 00:00:00 GMThttps://niels.nu/blog/2026/certified-ai-free/https://niels.nu/blog/2026/certified-ai-free/* except for a few small suggestionsWed, 21 Jan 2026 00:00:00 GMThttps://niels.nu/blog/2022/spring-custom-converter/https://niels.nu/blog/2022/spring-custom-converter/Three ways to output JSONLSun, 13 Nov 2022 00:00:00 GMThttps://niels.nu/blog/2022/spring-file-upload-download/https://niels.nu/blog/2022/spring-file-upload-download/Without running out of memoryMon, 24 Jan 2022 00:00:00 GMThttps://niels.nu/blog/2022/nice-random-numbers/https://niels.nu/blog/2022/nice-random-numbers/Are they a good ID?Mon, 10 Jan 2022 00:00:00 GMThttps://niels.nu/blog/2021/a-kotlin-retrospective/https://niels.nu/blog/2021/a-kotlin-retrospective/Kompetitive AdvantageSun, 10 Jan 2021 00:00:00 GMThttps://niels.nu/blog/2020/road-to-independence/https://niels.nu/blog/2020/road-to-independence/Jumping In At the Deep EndFri, 10 Jan 2020 00:00:00 GMThttps://niels.nu/blog/2018/spring-dynamodb-integration-testing/https://niels.nu/blog/2018/spring-dynamodb-integration-testing/TestContainers to the Rescue!Fri, 02 Nov 2018 00:00:00 GMThttps://niels.nu/blog/2018/software-architecture-in-an-agile-world/https://niels.nu/blog/2018/software-architecture-in-an-agile-world/Dealing with ComplexityMon, 22 Oct 2018 00:00:00 GMThttps://niels.nu/blog/2018/testing-the-architecture/https://niels.nu/blog/2018/testing-the-architecture/ArchUnit in PracticeFri, 19 Oct 2018 00:00:00 GMThttps://niels.nu/blog/2018/lightweight-architecture-decision-records/https://niels.nu/blog/2018/lightweight-architecture-decision-records/With tools to do the heavy liftingMon, 08 Oct 2018 00:00:00 GMThttps://niels.nu/blog/2018/my-move-to-kotlin/https://niels.nu/blog/2018/my-move-to-kotlin/A new loveTue, 02 Oct 2018 00:00:00 GMThttps://niels.nu/blog/2017/serverless-java-introduction/https://niels.nu/blog/2017/serverless-java-introduction/Where's my box?Mon, 23 Oct 2017 00:00:00 GMThttps://niels.nu/blog/2017/spring-boot-aop/https://niels.nu/blog/2017/spring-boot-aop/Aspects? Pointcuts? Join point? Huh?Thu, 08 Jun 2017 00:00:00 GMThttps://niels.nu/blog/2017/spring-cassandra-integration-tests/https://niels.nu/blog/2017/spring-cassandra-integration-tests/With Achilles JUnit and Test ContainersSun, 02 Apr 2017 00:00:00 GMThttps://niels.nu/blog/2017/docker-swarm-bramble-raspberry-clusterhat/https://niels.nu/blog/2017/docker-swarm-bramble-raspberry-clusterhat/Easy as Raspberry-pie!Fri, 03 Mar 2017 00:00:00 GMThttps://niels.nu/blog/2017/traefik-https-letsencrypt/https://niels.nu/blog/2017/traefik-https-letsencrypt/Let's Encrypt my Blog!Sat, 25 Feb 2017 00:00:00 GMThttps://niels.nu/blog/2017/spring-boot-docker-traefik/https://niels.nu/blog/2017/spring-boot-docker-traefik/How to deploy a dockerized Spring Boot app behind the Traefik reverse proxySun, 19 Feb 2017 00:00:00 GMThttps://niels.nu/blog/2017/continuous-blog-delivery-p2/https://niels.nu/blog/2017/continuous-blog-delivery-p2/Build automation with Jenkins and Bitbucket pipelinesSat, 11 Feb 2017 00:00:00 GMThttps://niels.nu/blog/2017/continuous-blog-delivery-p1/https://niels.nu/blog/2017/continuous-blog-delivery-p1/There's no such thing as over-engineering.Fri, 10 Feb 2017 00:00:00 GMThttps://niels.nu/blog/2017/spring-boot-microservice-versioning/https://niels.nu/blog/2017/spring-boot-microservice-versioning/Backward compatible REST responses using @ControllerAdviceSun, 15 Jan 2017 00:00:00 GMThttps://niels.nu/blog/2017/spring-boot-websocket-client/https://niels.nu/blog/2017/spring-boot-websocket-client/How to create a Spring/Stomp server with a Java clientSun, 08 Jan 2017 00:00:00 GMThttps://niels.nu/blog/2016/java-rsa/https://niels.nu/blog/2016/java-rsa/How to create a RSA keypair and use it to sign, verify and encrypt information in JavaThu, 29 Dec 2016 00:00:00 GMThttps://niels.nu/blog/2016/controller-advice-exception-handlers/https://niels.nu/blog/2016/controller-advice-exception-handlers/Clean and reusable error handling through Spring @ControllerAdviceSat, 24 Dec 2016 00:00:00 GMThttps://niels.nu/blog/2016/devoxx-talk/https://niels.nu/blog/2016/devoxx-talk/I'm making a note here: Huge success!Sat, 12 Nov 2016 00:00:00 GMThttps://niels.nu/blog/2016/spring-async-rest/https://niels.nu/blog/2016/spring-async-rest/Improve resource utilization through Asynchronous resultsWed, 05 Oct 2016 00:00:00 GMThttps://niels.nu/blog/2016/why-there-are-so-few-women-in-tech/https://niels.nu/blog/2016/why-there-are-so-few-women-in-tech/Education is a funnelThu, 15 Sep 2016 00:00:00 GMThttps://niels.nu/blog/2016/cassandra-resultset-paging/https://niels.nu/blog/2016/cassandra-resultset-paging/Optimize response sizes through Cassandra's built in paging mechanism.Sun, 24 Jul 2016 00:00:00 GMThttps://niels.nu/blog/2016/cassandra-rate-limiting-api/https://niels.nu/blog/2016/cassandra-rate-limiting-api/TTL inserts for fun and profitSat, 16 Jul 2016 00:00:00 GMThttps://niels.nu/blog/2016/cassandra-3-data-modelling-materialized-views/https://niels.nu/blog/2016/cassandra-3-data-modelling-materialized-views/Using Materialized Views to lower ETL complexityThu, 30 Jun 2016 00:00:00 GMThttps://niels.nu/blog/2016/microservice-versioning/https://niels.nu/blog/2016/microservice-versioning/Identifying the problems with versioning and exploring possible solutions.Sat, 21 May 2016 00:00:00 GMThttps://niels.nu/blog/2016/stringbuilder/https://niels.nu/blog/2016/stringbuilder/Or; fun with javapThu, 21 Apr 2016 00:00:00 GMThttps://niels.nu/blog/2016/twitter-markov/https://niels.nu/blog/2016/twitter-markov/But please don't let it become sentient!Tue, 05 Apr 2016 00:00:00 GMThttps://niels.nu/blog/2016/kafka-custom-serializers/https://niels.nu/blog/2016/kafka-custom-serializers/Create Kafka serializers for JSON, Kryo and Smile.Thu, 10 Mar 2016 00:00:00 GMThttps://niels.nu/blog/2016/spark-of-life-genetic-algorithm/https://niels.nu/blog/2016/spark-of-life-genetic-algorithm/Running a Genetic Algorithm on Apache SparkWed, 02 Mar 2016 00:00:00 GMThttps://niels.nu/blog/2016/testing-for-managers/https://niels.nu/blog/2016/testing-for-managers/Or; why we spend all that time creating and maintaining our testsSat, 06 Feb 2016 00:00:00 GMThttps://niels.nu/blog/2015/sentiment-spark/https://niels.nu/blog/2015/sentiment-spark/Thu, 19 Nov 2015 00:00:00 GMThttps://niels.nu/blog/2015/java8-command-design-pattern/https://niels.nu/blog/2015/java8-command-design-pattern/Wed, 14 Oct 2015 00:00:00 GMThttps://niels.nu/blog/2015/programming-sucks/https://niels.nu/blog/2015/programming-sucks/Thu, 08 Oct 2015 00:00:00 GMThttps://niels.nu/blog/2015/caching-http-requests-in-angular/https://niels.nu/blog/2015/caching-http-requests-in-angular/Wed, 30 Sep 2015 00:00:00 GMThttps://niels.nu/blog/2015/5-ways-to-count-vowels/https://niels.nu/blog/2015/5-ways-to-count-vowels/Tue, 15 Sep 2015 00:00:00 GMThttps://niels.nu/blog/2015/code-challenge-postmortem/https://niels.nu/blog/2015/code-challenge-postmortem/Tue, 07 Jul 2015 00:00:00 GMThttps://niels.nu/blog/2015/top-5-useful-hidden-eclipse-features/https://niels.nu/blog/2015/top-5-useful-hidden-eclipse-features/Fri, 10 Apr 2015 00:00:00 GMThttps://niels.nu/blog/2015/angular-directive-communication/https://niels.nu/blog/2015/angular-directive-communication/Wed, 08 Apr 2015 00:00:00 GMThttps://niels.nu/blog/2015/antlr-is-awesome/https://niels.nu/blog/2015/antlr-is-awesome/Wed, 01 Apr 2015 00:00:00 GMThttps://niels.nu/blog/2015/json-web-tokens/https://niels.nu/blog/2015/json-web-tokens/Wed, 28 Jan 2015 00:00:00 GMThttps://niels.nu/blog/2015/baking-a-blog/https://niels.nu/blog/2015/baking-a-blog/Sun, 25 Jan 2015 00:00:00 GMT