Java News for Developers
Latest Java news, tutorials and tools
Java keeps evolving with a six-month release cadence, virtual threads and a mature Spring ecosystem. This page collects the latest Java news, JDK and Spring Boot updates and backend engineering guides, refreshed hourly. Trending Java repositories and conferences are listed alongside the articles for deeper learning.
Latest Java articles
Reducing Repeated Metadata API Calls in Spring Boot Microservices Using a Reusable Maven JAR
Convert a Spring Boot metadata service into a versioned Java core JAR, publish to Maven/GitHub Packages, and consume it in other microservices without REST calls....
20 September 2026medium
Building a Kubernetes Operator in Java with Fabric8
Build a Kafka Query Engine Operator in Java with Fabric8: create CRDs, reconcile ConfigMaps, Deployments, Services, handle TTL, and expose search APIs on Kubernetes....
20 September 2026medium
jev-mcp-spring — an MCP server for TypeSafe Jev, built on Spring AI
Java MCP server for TypeSafe AI built with Spring AI, featuring classify, score, check, health tools and Streamable HTTP/SSE support. Feedback welcome....
20 September 2026reddit
When the Dialect IS the API: Reading Army and jOOQ Side by Side, Through PostgreSQL Source
When the Dialect IS the API: Reading Army and jOOQ Side by Side, Through PostgreSQL Source...
20 September 2026devto
JVM Interview Questions Every Senior Java Developer Should Know
Master senior Java interview topics: JVM fundamentals, memory, GC (G1, ZGC), JIT, classloading, Metaspace, OutOfMemoryError, and production troubleshooting....
20 September 2026medium
51% Fewer Servers, Same Traffic, $’s Saved Yearly: What Roaring Bitmaps Did to Our Hot Path
Switching from HashSet<Integer> to RoaringBitmap in Java cut latency 95%, reduced fleet 51%, and saved millions in compute by eliminating per‑request allocations....
20 September 2026medium
Modernizing ColdFusion on Google Cloud: The Enterprise Blueprint (Part 1)
Modernize ColdFusion on Google Cloud Run with Docker, AlloyDB, BigQuery, and Gemini AI. Learn architecture, secure secrets, and AI integration....
20 September 2026medium
Java is 30 years old
Java powers 2026 tech: Spring Boot, AI, Hibernate, Spark, Android, microservices, Kafka, JUnit, Kubernetes, Gradle, Jenkins....
20 September 2026medium
Stop Chasing Exactly-Once. Your Kafka Consumer Just Needs to Not Care
Stop Chasing Exactly-Once. Your Kafka Consumer Just Needs to Not Care...
20 September 2026devto
Stacktraces have such a weird ordering to them
Learn why Java stack traces print in reverse order, how to read them, and why a more intuitive top‑to‑bottom format would simplify debugging....
20 September 2026reddit
MapStruct — Nothing Falls Through
Use MapStruct with JDK 25 to enforce strict, compile‑time mapping: unmapped policies, records, sealed types, and exhaustive switches prevent silent data loss....
20 September 2026medium
Testing the Service Layer — Part 1: What the Generic Suite Owes Every Service (Chapter 10)
Test Spring services instantly with clean architecture: isolate domain logic, use @Transactional at service level, mock DAO, no DB or context needed....
20 September 2026medium
How I’d Design Twitter’s Timeline — With Working Java Code
Build a Twitter‑style timeline with Spring Boot: compare fan‑out‑on‑write vs fan‑out‑on‑read, Redis, Kafka, caching, and full code examples....
20 September 2026medium
Java Forgets Your Generics but Remembers Every Object. That Gap Is Where Bugs Hide.
Explore Java generics, type erasure, casts, and @SuppressWarnings: how compile‑time types differ from runtime classes, getClass(), and ClassCastException....
20 September 2026medium
Exception Design in Java: Building a Vocabulary for Failure
Use a domain‑mirrored exception hierarchy in Java, prefer unchecked types, translate low‑level errors, and avoid swallowing bugs for clearer handling....
20 September 2026medium
I Built a Payment Reconciliation Engine to Find the ₹15 That Disappeared
Build a payment reconciliation engine with Java 21, Spring Boot, PostgreSQL, handling Razorpay, Shopify, Zoho, and bank CSVs, normalize, dedupe, and match transactions....
20 September 2026medium
Why I Built a Task Scheduler Instead of Another Todo App
Build a robust Java Spring Boot task scheduler backend using PostgreSQL, graph dependencies, and priority queues—no UI, pure API, real DSA focus....
20 September 2026medium
Java 27 Is Here. Should Enterprise Teams Upgrade?
Assess Java 27’s value during a Java 21 migration: weigh new features, performance gains, LTS status, and testing effort before committing to production....
20 September 2026medium
Spring Security Beyond the Login Form: Data Isolation and the 401/403 Contract
Spring Security Beyond the Login Form: Data Isolation and the 401/403 Contract...
20 September 2026devto
Trending Java repositories
ashishps1/awesome-low-level-design
learn low level design (lld) and prepare for interviews using free resources.
26,906 stars6,521 forks
keycloak/keycloak
open source identity and access management for modern applications and services
36,888 stars8,945 forks
Upcoming Java conferences
Frequently asked questions
Where can I find the latest Java news?
This page is a dedicated Java news hub: it collects new articles, release announcements and tutorials from 50+ developer sources and refreshes every hour, so checking it once a day keeps you up to date without following dozens of blogs.
How do I keep up with Java releases and best practices?
Skim the article feed for release notes and hands-on guides, star one trending repository below to learn from real code, and pick one upcoming conference to hear directly from Java maintainers and practitioners.
Is this Java feed updated regularly?
Yes. New Java articles are ingested and summarized continuously throughout the day, and the trending repositories and conference lists are refreshed regularly, so the content you see here is always recent.