java-26

Exploring Java new features from 8 to 27

Bot to convert media into Telegram stickers

💫 Tachyon MCP Runtime for Java and Kotlin - Model Context Protocol (MCP) server with Streamable HTTP, native Netty transports, tasks, resources, prompts, completions, resumable sessions, and stateless deployment support.

From Java 11 to Java 26 - new features in practical examples

An advanced, production-grade URL shortening service built for internet-scale systems. Designed with scalability, observability, and extensibility in mind — yet still under active development with new features being added regularly.

Portfolio-grade Java 26 / Spring Boot 4 recurring billing scheduler with schedule generation, idempotent run creation, retries, and lifecycle state management.

Automatically saves your Spotify Discover Weekly tracks to a permanent playlist before they reset each Monday.

Portfolio-grade Java 26 / Spring Boot 4 expense categorization API with clean CRUD design, validation, reporting basics, and DTO separation.

Hytale modding CLI to scaffold, build, link, develop, and deploy server mods locally or over SSH.

Common Reusable Java Stream Gatherers (JEP 485)

Portfolio-grade Java 26 / Spring Boot 4 event-driven ledger platform with Kafka-backed outbox publishing, immutable journal posting, reconciliation workflows, and persisted role-based security.

Production-ready authentication and authorization platform built with Spring Boot 4, WebFlux, JWT, API Keys, Redis, PostgreSQL, and reactive microservices.

API de E-commerce especializada em brechós. Focada em economia circular, gestão de consignação, cálculo de repasse e design inclusivo. Construída com Java 26 e Spring Boot.

Spring Boot multi-module example demonstrating Hexagonal Architecture, Ports & Adapters, and clean separation of business logic from infrastructure.

Java backend microservice for managing medical imaging devices and publishing domain events via Apache Kafka for the Radio ecosystem

Java backend microservice consuming Apache Kafka events to provide operational and business insights for the Radio ecosystem

Portfolio-grade Java 26 / Spring Boot 4 currency exchange rate service with provider integration, caching, fallback handling, and conversion APIs.

Portfolio-grade Java 26 / Spring Boot 4 subscription billing platform with plans, subscriptions, invoice generation, and payment attempt lifecycle tracking.

Portfolio-grade Java 26 / Spring Boot 4 loan amortization and repayment forecasting API with exports, variable rates, and scenario comparison.