Shaaf's blog

There are some major changes to my setup. read the latest here: https://shaaf.dev/post/2026-03-09-neovim-rust-update/

Are you a Java developer who is mesmerized by the power and efficiency of Vim? Do you want to try your development experience to the next level? I mean hands-off the mouse style! If so, you’re in for a treat! In this post, I am going to dive into the world of Neovim and explore how you can transform it into a Java IDE. To be honest its a learning journey. And the more I experience learning it, I feel like I really need to share how cool this thing really is!

Konveyor Kantra CLI is a command-line tool for analyzing and transforming application source code to aid modernization and migration. It performs static code analysis to detect issues. Kantra can also extract metadata, generate deployment assets (e.g., Kubernetes manifests), and runs via containers or natively. It supports multiple languages e.g. Java, Go, .Net and Node.js and integrates with CI/CD pipelines. Kantra is the foundation for automated, LLM-powered app modernization workflows like Konveyor AI (Kai).

Recently I wrote an article about “Adoption of the Model Context Protocol Within the Java Ecosystem”. Now it was also time to start experimenting with writing an MCP Server myself (well maybe not the first time). Certainly I don’t want to be left out of all the cool things being demonstrated by the community. The goal for me is to learn, and creating perhaps a more practical example. In this post I am going to choose Keycloak, and write an experimental MCP server implementation for keycloak. The post is also to spark interest around this topic. Will it be useful to have an MCP server for Keycloak?

Langchain4j is my favorite framework for working with large language models and Java. In the last couple of weeks, both Bazlur and I have presented to multiple user groups and conferences. This week, we had the privilege of presenting at the Jakarta Tech Talk, which both of us were looking very much forward to.

We now have so much demo code on the topic that we cannot present all the variations in one hour. We are still building along as we learn here.