java-26

Exploring Java new features from 8 to 28

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

API Gateway Service with Spring Cloud Gateway, Spring Boot 4, Java 26

Spring gRPC, GraphQL, Docker OpenTelemetry LGTM, Kafka, Redis, Elasticsearch and Logstash Integrations with Spring Boot 4, Java 26 and Docker. Integration Tests with Testcontainers for Controller. Unit Tests for Controller, Service, and Mapper with Junit, and Mockito

OAuth2 Authorization Server with MariaDB, Docker OpenTelemetry LGTM, and Redis Integrations with Spring Boot 4, Java 26 and Docker. Integration Tests with Testcontainers and unit Tests with Junit 5, and Mockito

Universal Discord operations bot for security recon, moderation, anti-raid protection, Cyber RPG, AI assistance, dashboards, and VC audio. Built with Java 26 + Virtual Threads, Gemini AI, and Discord DAVE E2EE—using free/local resources with no paid security APIs.

Didactic Java evolution reference with tested examples for features introduced from Java 1 through Java 27.

This repo is just a demonstration for DOP/FP in Java. More could be done so do whatever you want with this code.

A project that started off as an experiment to make a cpu to a closer to an emulator/vm

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.

This is a project that use multithreading and concurrent programming for getting status code. Created: 2026/08/10. Finished: 2026/09/29.

Spring Boot 4.1.0 + Java 26 REST API for restaurant table reservations. Features JWT authentication, Keycloak for OAuth2/OIDC IAM, role-based access, Spring Security, concurrent data access, smallest-fit table allocation, hourly time slots, view/delete own reservations, image endpoints, H2 persistence, Swagger UI, Actuator, and Jakarta Validation.

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

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

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

JavaFX desktop demo that puts Valkey in front of PostgreSQL as a cache and ValkeySearch full-text search engine, using valkey-glide, with a built-in benchmark that measures the speedup.

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.