The BellSoft Blog

A beginner-friendly Java Flight Recorder tutorial covering JFR profiling, Docker and local setup, and Mission Control reports analysis.

Find out how to use the Embabel framework to build production-ready, goal-driven AI agents guarded by domain logic and strong typing on the JVM. Step-by-step guide.

Learn how to build modern web apps with rich UI completely in Java with Vaadin. This tutorial explores grids, layouts, security, filters

A step-by-step tutorial on setting up Flyway in a Spring Boot application with PostgreSQL and Maven.

A step-by-step tutorial on setting up Liquibase in a Spring Boot application with PostgreSQL and Maven. Covers changelogs, changesets, preconditions, rollbacks, diffs, and CI/CD pipelines.

Learn about implementing a DTO pattern in Spring Boot with Java records. Master manual and automated mapping, projections, and other ways of retrieving data from the db

An end-to-end tutorial on using MongoD with Spring Boot: setup, CRUD operations, custom queries, aggregation pipelines, Mongock migrations, testing

Learn how to build modern desktop applications using JavaFX and Spring Boot. Step-by-step guide with practical examples, UI design tips, and backend integration.

Learn how to compile JavaFX applications into native executables using GraalVM. Step-by-step guide, metadata setup, and GitHub Actions automation.

Discover method for profiling Java apps in Docker containers with Async Profiler. A step-by-step guide.

Learn how mutation testing works in Java, why it’s essential for developers, and how tools like PIT can improve your test coverage and code quality.

Discover expert methods for profiling Java apps in Docker with Java Flight Recorder. Step-by-step setup for containerized environments.

Find out how to use GraalVM Native Debugger plugin to debug native images from IntelliJ IDEA

Find out how to set up a remote Native Image debugging session

Learn how to build, run, and customize secure Spring Boot container images with buildpacks, without writing or maintaining a Dockerfile.

Find out how to use pattern matching in new Java versions

Learn how to implement reactive programming in your Spring apps with Spring Data R2DBC and what you should pay attention to.

Learn how to build AI applications using Spring AI and Unstructured.io.

Find out how to use Project Leyden with Spring Boot to reduce startup

Find out how to build modular Spring Boot apps with Spring Modulith

Learn about Spring Modulith project and how to define application module structure

Find out how to implement CDS into your Spring Boot project for startup and footprint reduction.

Discover different ways to update your Java version.