Exploring Java new features from 8 to 27

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

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

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.

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

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 event-driven ledger platform with Kafka-backed outbox publishing, immutable journal posting, reconciliation workflows, and persisted role-based security.

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 currency exchange rate service with provider integration, caching, fallback handling, and conversion APIs.

Common Reusable Java Stream Gatherers (JEP 485)

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