adam bien's blog

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1. Java vs. C++ performance
2. Angular with or without AI
3. Web development trends and opinions
4. Testing business logic with external dependencies
5. BCE - where to put DTOs
6. How to build a multi-tenant monolith
7. Time machine: 100 episodes back (41st episode):

   "React over Angular? ...and WebStandards, JSR-375 and REST, Reactive Programming vs. CompletableFuture, Blocking @Asynchronous calls, Interceptors with EntityManager, AMQP and data masses, To Framework Or Not To Framework, Unit Testing Primefaces, Multi-Threaded JAX-RS 2.0 Clients, Java EE "vs." .NET, Dynamic entities, Data encryption, Working offline with JPA, Sample Projects, Industry trends, Conferences and Co., Server Side Rendering with Java EE 7, Naming CRUD in BCE, Java 9 Logging interface, Generic REST client, React.js / Polymer examples, Session replication challenges"" adambien.blog/roller/abien/entry/react_over_angular_reactive_programming

Any questions left? Ask now: adambien.blog/roller/abien/entry/react_over_angular_reactive_programming and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds or less with Java

Ask questions during the show via twitter mentioning me: https://twitter.com/AdamBien (@AdamBien),using the hashtag: #airhacks or built-in chat at: airhacks.tv. You can join the Q&A session live each first Monday of month, 8 P.M at airhacks.tv

Subscribe to airhacks.fm podcast via: spotify| iTunes| RSS

Subscribe to airhacks.fm podcast via: spotify| iTunes| RSS

constructions.cloud provides a curated collection of Java-based AWS deployment examples using CDK infrastructure-as-code. The repository contains production-ready patterns for building serverless applications on AWS.

The collection includes repositories covering common AWS patterns:

Foundation & Setup

CDK development environment configuration and foundational templates

Serverless Compute

Lambda implementations from minimal POJO examples to Quarkus-powered HTTP APIs

AI Integration

Bedrock Agent Core implementations including runtime agents and MCP gateway patterns

Storage & CDN

S3 integration examples and CI/CD pipelines with CloudFront distribution

Each repository follows the bce.design architecture with minimal dependencies. The Quarkus examples replace traditional microservices with serverless HTTP APIs. The POJO examples handle AWS events (S3, SQS, EventBridge) without framework overhead.

Visit constructions.cloud to explore the collection.

Escape outdated JDK 1.X practices from the 90s with practical, modern Java development. This session provides concrete Java 21+ techniques that eliminate bloat, increase productivity, and streamline your business logic.

• Structuring efficient monoliths and microservices
• Streamlined testing approaches
• Logging and error handling
• Implement data-oriented programming
• Remoting and caching
• Persistence strategies
• Documentation and Javadoc
• Build and CI
• Replace external dependencies with built-in functionality
• Adapting code structure for LLM-driven development

Subscribe to airhacks.fm podcast via: spotify| iTunes| RSS

Subscribe to airhacks.fm podcast via: spotify| iTunes| RSS

Subscribe to airhacks.fm podcast via: spotify| iTunes| RSS

Subscribe to airhacks.fm podcast via: spotify| iTunes| RSS

Subscribe to airhacks.fm podcast via: spotify| iTunes| RSS

1. What is the future of reactive frameworks?
2. Input formatting and validation with Java records
3. constructions.cloud announcement
4. Quarkus HTTP API Lambda example
5. Quarkus MicroProfile on AWS Bedrock Agent Core example
6. airhacks.live update The 50x Java Dev: Crafting Elegant Code with LLM
7. airhacks.live update Architecting Applications with MCP, A2A and AI Agents
8. Back from JUGM with; After 30 Years: Why Java is The Most Productive Platform for LLM-Driven Development (report)
9. Time machine: 100 episodes back (40th episode):

   "JASPIC for securing Java EE 7 applications, Thoughts on lambdas and more functional Java, Thoughts on AWS lambdas, The size of ReactJs -- and possible optimisations, Thoughts on custom servlet login module, How to handle transactions in Thin WARs, Primefaces as "one stop" solution, REST as communication "protocol" between Thin WARs, WebSockets vs. Long Polling, JSONObject as DTO and inheritance issues, Microservices and Jenkins, Opinions on Docker Swarm, Threads and EJBs, Is MVC dying (everywhere), Programmatically deploy and undeploy Java EE applications" adambien.blog/roller/abien/entry/ear_use_cases_jsf_modularization

Any questions left? Ask now: gist.github.com/AdamBien/c15cc2ca8533d980525a0fb790105b4a and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds or less with Java

Ask questions during the show via twitter mentioning me: https://twitter.com/AdamBien (@AdamBien),using the hashtag: #airhacks or built-in chat at: airhacks.tv. You can join the Q&A session live each first Monday of month, 8 P.M at airhacks.tv

I started with an empty project (Quarkus and MicroProfile), gradually adding features and tests and carrying out refactoring using the bce.design approach. I began with Claude Code, then moved on to Kiro.

There was a general agreement that beautiful Java code can be written really quickly. I hope I surprised some of the attendees! 😊

Some attendees handled 'TrainAboutToDepartException' with impressive speed, which is a positive sign.

Subscribe to airhacks.fm podcast via: spotify| iTunes| RSS

Subscribe to airhacks.fm podcast via: spotify| iTunes| RSS

A new Quarkus template is now available that provides an essential foundation for building MicroProfile applications using the Boundary-Control-Entity (BCE) architecture pattern. Available at github.com/AdamBien/quarkus-microprofile.

Key Features

BCE Architecture: The code is structured into distinct layers - boundaries (REST endpoints), control logic, and entities. This promotes maintainability while keeping the codebase minimalistic.

MicroProfile-Only: The template includes only JAX-RS for REST endpoints and CDI for dependency injection. No external dependencies.

Modular Structure:

• service: Core Quarkus application with BCE structure
• service-st: Separate system tests module

Technical Foundation

Built on Quarkus for fast startup and low memory footprint. The BCE pattern is the simplest way to organise your code, scaling to complex enterprise applications.

Getting Started

Clone the repository (github.com/AdamBien/quarkus-microprofile) and start building immediately. All necessary configuration files and basic project structure are included.

Arguably the oldest architecture pattern, BCE/ECB is described in countless articles and books, and is supported by most (all) design (drawing? 😊) tools.

Boundary Control Entity (BCE/ECB) is built on a simple structure that focuses on the business domain. A component is a (Java) package or module (e.g. ESM in Web Components) that focuses on a real business concept.

Checkout: https://bce.design

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This session showcases the next set of top-rated and unique Java code snippets—demonstrating tasks like running Java apps without compilation, handling emojis, launching dev servers, and more—using only plain Java, javac, and VS Code, with no builds or external dependencies.

1. BCE news
2. event-driven, serverless example
3. LLM driven development
4. airhacks.live update The 50x Java Dev: Crafting Elegant Code with LLM
5. Time machine: 100 episodes back (39th episode):

   "Follow up JSF modularization, Beautiful Java EE frontends, JWT Authentication With Java EE, Java EE CRUD Code Generators / bootstrap Frameworks, Are there still use cases for EARs?, Serialising a dynamic subset of fields / properties, JPA with WildFly, Testing @asynchronous methods, Fat WARs -- if you really need them, Use Cases and experiences with Java EE Batch, Multitenancy with JPA, Opinions about Multiple WARs, one server, one DB" adambien.blog/roller/abien/entry/ear_use_cases_jsf_modularization

6. Back from: Dev Talks Conference Keynote (Cluj / Romania): Java's Unfair Advantage: Why LLMs Write Better Enterprise Code in Java and Talk4Devs in-person event (Krakow / Poland): Zero-Compromise Serverless Java: No Ops, Low Costs (EN)
7. CZ Jug report: The Battle of frameworks

Any questions left? Ask now: gist.github.com/AdamBien/93cddaa073a534bafbe8585d09e647a6 and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds or less with Java

Ask questions during the show via twitter mentioning me: https://twitter.com/AdamBien (@AdamBien),using the hashtag: #airhacks or built-in chat at: airhacks.tv. You can join the Q&A session live each first Monday of month, 8 P.M at airhacks.tv

Subscribe to airhacks.fm podcast via: spotify| iTunes| RSS

Subscribe to airhacks.fm podcast via: spotify| iTunes| RSS

Subscribe to airhacks.fm podcast via: spotify| iTunes| RSS

JFR and JMC for production monitoring, event-based logging instead of traditional logs, CloudWatch anomaly detection, log less with more meaningful events, BCE architecture for LLM-friendly code generation, package-info.java importance for LLMs, zero-dependency approach benefits, infrastructure as code with Java, serverful vs serverless architectural differences, MicroProfile and Jakarta EE standards advantage with LLMs, component-based architecture, domain-driven naming conventions, configuration management strategies, end-to-end testing practices, Visual Studio Code setup for Java development

and these answered questions:

1. What is the best way to search your Q&A to find topics covered before?
2. Is there a log analyzing framework that you would recommend for real-time monitoring?
3. What do you recommend as a best practice to monitor an application?
4. Does it matter how the logs are formatted (XML, JSON versus raw text)?
5. How will you organize configuration classes like logger produces, custom beans and helper classes in the BCE architecture?
6. What plugins do you recommend for Visual Studio Code?
7. When you write an end-to-end test, in general, do you write those in separate projects?
8. When performing an end-to-end test, how specific do you like the

1. DevTalks Cluj: Java's Unfair Advantage: Why LLMs Write Better Enterprise Code in Java
   keynote DevTalks Cluj Cluj Romania 25 September 2025
   https://www.devtalks.ro/cluj#agenda
2. JAVA Centric--Satellite Event by DevTalks & BMW TechWorks Romania: Business Logic First: Escaping Java's Bloat Addiction
   session JAVA Centric--Satellite Event by DevTalks & BMW TechWorks Romania Cluj Romania 26 September 2025
   https://bmwtechworks.ro/en/events/java-centric-satellite-26-09-2025
3. J-Labs: Zero-Compromise Serverless Java: No Ops, Low Costs
   session J-Labs Krakow, Poland 30 September 2025
   https://talk4devs.j-labs.pl/en/100-cloud-serverless-java-2/
4. Tricentis: The Battle of frameworks
   session Tricentis Prague, Czech 01 October 2025
   https://www.meetup.com/czjug-prague/events/306973050/
5. Devoxx Belgium: The Best of Java Shorts Show: 100 Snippets in 50 Minutes
   session Devoxx Belgium Antwerp 09 October 2025
   https://devoxx.be/
6. 30 Jahre Java - Lessons Learned[online event]
   session 14 October 2025
   https://java.bettercode.eu/veranstaltung-83980-se-0-30-jahre-java-%26ndash%3B-lessons-learned.html
7. JavaDay / JUG Karlsruhe: Real World Java Hacks and Tricks
   session JavaDay / JUG Karlsruhe JUG Karlsruhe 16 October 2025
   https://www.meetup.com/java-user-group-karlsruhe/events/310239937/
8. JUG: After 30 years: How Java became the most productive LLM-driven development language
   session JUG Munich 20 October 2025
   https://www.meetup.com/de-DE/java-user-group-munchen-jugm/events/310632489/
9. 4th Forum Unique Codes: Cloud vs. On-Premise: Building Tomorrow's IT Strategy Today
   session 4th Forum Unique Codes Baden, Austria 23 October 2025
   https://www.securikett.com/4th-forum-unique-codes-meet-us-in-munchendorf-at/
10. JUG: 10x Speed, 1x Complexity: Live Coding Java with LLMs (Agent)
    session JUG Katowice, Poland 28 October 2025
    https://www.meetup.com/silesia-jug/events/311501854/
11. JUG: Pairing With LLM Agents To Write Great Java Code Fast
    session JUG Vienna, Austria 17 November 2025
    https://www.meetup.com/java-vienna/events/310835005/
12. The 50x Java Dev: Crafting Elegant Code with LLMs[online event]
    airhacks.live workshop 16 December 2025
    https://airhacks.live
13. Architecting Applications with MCP, A2A and AI Agents[online event]
    airhacks.live workshop 18 December 2025
    https://airhacks.live
14. airhacks.tv Questions and Answers #livestream[online event]
    live streaming show first monday of the month, 8pm CET
    https://www.meetup.com/airhacks/