Kotlin
- ko-iso
Simple abstractions for working with country and language codes in kotlin. - kotlin4example
This library is intended for anyone that publishes some kind of Kotlin library or code and wants to document their code using Markdown files that contain working examples. - Writing code the Kotlin-way – Filip Mistrik
Read this, when you switch from Java to Kotlin - Kotlin for Seniors: Stop Writing Code, Start Crafting It. 3 tips. – Artem Asoyan
The article explains Context Receivers, the K2 compiler and (sealed) data classes. - Guide to Kotlin 2.0 and 2.1 Beta New Features – Nine Pages Of My Life
Kotlin gets more and more useful features
Spring Boot
- Logging Patterns in Spring Boot – Rishi
Nice intro into logging with Spring - Mastering Spring Boot Projections: A Modern Approach to Data Transfer – Aniket Gupta
Interesting usage of projections - Integrating WireMock with Spring Boot – Alexandru Borza
WireMock is a good alternative to MockServer (see https://www.baeldung.com/mockserver)
SQL / PostgreSQL
- Top 8 PostgreSQL Extensions – Team Timescale
Describes PostGIS, pg_stat_statements, pgcrypto, pg_partman, postgres_fdw, pgvector, hstore, pgpcre
Algorithms
- Efficient Algorithms Inside Java’s Core Libraries – Skilled Coder
Interesting to know which algorithms are used
General
- Docker Best Practices for Java and Spring Boot Applications – Ramesh Fadatare
Explains “Common Pitfalls” and “Best Practices”