adam bien's blog

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Java for CPU-intensive workloads in serverless, no-code approach for I/O-bound operations, Step Functions for waiting operations, Event Bridge for transformations, Service Loader for plugin architecture, Entity Control Boundary package structure, Minimalistic Java applications, Start with Java SE then extend to MicroProfile, Quarkus for fastest runtime, HTTP Client from Java 11 instead of MicroProfile REST Client, Avoid distributing systems prematurely, REST for synchronous communication, Message queues for fire-and-forget, Kafka as a database with forever retention, System.out.println for Lambda logging, Web Components for UI development, Docker layering for Quarkus optimization, MCP comprises prompts resources and tools, 180ms build time for simple projects, 800ms for larger projects with ZB

and answered questions:

1. How to write minimal Java applications?
2. How to get into consulting?
3. What is a good possibility to learn more about large-scale systems and their networking?
4. How long does the system start - fast redeploy is crucial for dev productivity?
5. What would you prefer if you could choose one of the applications server or Quarkus?
6. Are logging frameworks like Logback relevant in serverless Lambda when using Quarkus?
7. How do you find the right balance between using an existing library versus using Java SE?
8. Where to put cross-cutting classes in the boundary control entity structure?
9. How to deal with shared libraries in thin WAR environments?
10. How to separate environments / implement stages?
11. What are UI stack options in modern Java applications?
12. How to manage database connections in Docker and serverless?
13. What is javax.inject.Singleton?
14. What do you think about separating Quarkus from core logic in a multi-module project?

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

1. how to write minimal Java applications
2. CloudLand conference report
3. about consulting
4. Zero Dependencies Builder: zb announcement
5. Zero Model Context Protocol: zMCP announcement
6. Large scale software systems
7. Time travel, topics from the 36th episode:

   HA Singletons and Java EE, JMS-redelivery in the case of a rollback or system failure, Decisions for hosting Java EE projects on premise or in the cloud, Messaging systems and message ordering, Where to put cross-cutting classes in the Boundary-Control-Entity structure?, Deploying a single WAR into separated subfolders, How to deal with "useful" libraries in Thin WAR environments?, Test coverage of system tests, JSON-P vs JSON-B, How to separate environments in Java EE?, UI-stack options in modern Java EE applications, How to manage database connections with TomEE and Docker?, What is @javax.inject.Singleton?, Swagger integration and Jersey or: how to document REST, Field validation in JavaFX and FXML, Do we have to override: getClasses/getSingletons of the javax.ws.rs.core.Application class?

Any questions left? Ask now: gist.github.com/AdamBien/8d9aaeb0af5e612de22796225fee4cab 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

1. AWS User Group Silesia: Hardcore Serverless Java
   session AWS User Group Silesia Future Processing, Gliwice 24 June 2025
   https://www.meetup.com/airhacks/events/308303637/
2. CloudLand: Hardcore Serviceful + Serverless Java #slideless
   session CloudLand Heide Park Soltau 2 July 2025
   https://meine.doag.org/events/cloudland/2025/agenda/#agendaId.5738
3. LLM / GenAI Patterns, Architectures and Use Cases with Java[online event]
   airhacks.live workshop 10 July 2025
   https://airhacks.live
4. Hardcore Serverless Java on AWS[online event]
   airhacks.live workshop 17 July 2025
   https://airhacks.live
5. airhacks.tv Questions and Answers #livestream[online event]
   live streaming show first monday of the month, 8pm CET
   https://www.meetup.com/airhacks/

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

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

ZB (Zero Dependency Builder) is a simple build tool for Java without external dependencies, Main branch only development works well for most enterprise projects but not when releases are dictated by law, Load balancers like HAProxy and Nginx are recommended for on-premise while cloud load balancers are good for global distribution, JSON-P is a simple way to handle JSON in Java applications, Entity mapping can be done with direct serialization or through DTOs depending on API versioning needs, EJBs can be faster than RequestScoped beans due to object pooling and graph reuse, Quarkus deploys at build time and performs tree shaking for better performance and security, Native images make sense for on-premise deployments but not necessarily for cloud/serverless, AI tools are useful when you can quickly evaluate and accept/reject suggestions, Trunk-based development avoids merge conflicts and keeps the codebase in a functional state, Virtual threads make reactive programming less necessary

and answered questions:

1. Why should you use static method in an interface why not just use a class?
2. How are you using AI tools like copilot or cursor?
3. What is a good load balancer?
4. How would you map in a project that use BCE an entity post from block?
5. How would you do if you want a different request for the creation for the post as well?
6. Would you create the attribute names with static strings?
7. Are you aware of JSON-P being brought into the JDK?
8. Would you like to update the benchmark about request scoped and EJBs?
9. Do you use native images? Why or why not?

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

1. Meet zb (zero dependencies builder)
2. Request for recommendations for load balancer tools for on-premise applications, with previous GSLB experience being limited compared to cloud-based solutions and seeking more feature-rich alternatives.
3. Use DTOs like PostDto in the Boundary layer for responses to avoid exposing entire JPA entities, and utilize separate DTOs like CreatePostDto for handling creation requests.
4. Boundary layer manages interaction between application and external systems, handling requests and responses using appropriate DTOs.
5. Managing CI/CD and collaboration with multiple people using only the "main" branch workflow.
6. Comparing RequestScoped and EJB performance in Quarkus, questioning necessity of waiting for "EJB Replacement" for performance optimization.
7. Discussion on whether RequestScoped is currently sufficient without optimizations like pooling and max concurrency that are only available in EJB.
8. Payara's startup and deployment speed now comparable to Quarkus thanks to Project Leyden and JDK 24 improvements.
9. Java's overall performance enhancement with JDK 24 reduces performance gap between Quarkus and other Java frameworks.
10. Project Leyden makes reflection no longer a performance bottleneck, benefiting all Java applications.
11. Introduction of jtaccuino project - a Jupyter notebook written in JavaFX providing an alternative to Python for datascience.
12. time travel, topics form the 35th episode:

    Java EE 8 News, Java SDK for Oracle Bare Metal Cloud Services, Handling JPA relationships in CRUD microservice scenarios, The role of RxJava in typical enterprise applications, JAX-RS returning Response vs objects and JSON vs XML, Cross-field entity validation, GPL/LGPL opensource and commercial projects, What is pac4j.org, Transactions CRUD-Services BCE EntityManager and connection sharing, SCM Managing Structuring and organizing microservices, Gradle adoption gradle vs maven, Dealing with setup scripts in Java EE environment, Oracle JDK vs openJDK and licensing, Greetings from Panama jmoordb, The role of Model Driven Architecture in Java EE

Any questions left? Ask now: gist.github.com/AdamBien/74fcde9b08475112003c772ed8384462 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

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

"This interactive session is about practical, no-nonsense coding. We'll explore lean Java 21+ practices and patterns that eliminate bloat and hacks that increase productivity. We will start with structuring and organizing backend monoliths and microservices, cover testing, then move on to decoupling, abstractions, Data Oriented Programming, automation with pure Java."

I used the following example during the session ebank. As a quickstarter for serverless / AWS production projects, I'm using the following template: aws-quarkus-lambda-cdk-plain

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

REST is about manipulating resources with well-defined HTTP methods (GET, POST, PUT, DELETE) while gRPC is just remote method invocation, Quarkus request-scoped beans are faster than in traditional Java EE due to lack of reflection, Java is 35x faster than Python making it better for AI inference and production, serverless architecture provides cost benefits by paying only for actual usage, RAG (Retrieval Augmented Generation) can be implemented in Quarkus with predefined pipelines, Neo4j works well with LLMs due to its graph structure matching semantic relationships, document categorization with AI can be implemented by passing document chunks to embedding models and using vector databases, Java is getting better with each version with Java 24 being particularly strong, event-driven architecture works well for AI applications by chaining asynchronous operations

See you every first Monday of the month at https://airhacks.tv 8pm CET (UTC+1:00). Show is also announced at: meetup.com/airhacks.

Are you nice? :-) Then checkout: the airhacks discord server

"Treating LLMs as microservices with APIs for enterprise integration, Java is excellent for model inference and production deployment, Enterprise applications benefit from LLMs as decision support tools rather than decision makers, Langchain4j gaining adoption in the Quarkus enterprise space, Java developers and Python developers form distinct groups with different priorities, Future trend toward smaller dedicated models through model distillation, Java's vector API can be as fast as modest GPUs in some cases, Local LLM inference possible with Java at 10 tokens per second, Java 24 released with gatherers and FFM API, Java One conference was well-organized with great content and networking, JavaLand conference focused on community with keynote about 30 years of Java, Centralized logging now standard in cloud environments, Application-scoped services preferred in serverless architectures, Generic utility packages should be avoided for better cohesion, Preference for JSON-P over JSON-B for better versioning capabilities, Synchronous communication preferred over queuing when possible, Vaadin making a comeback with web components support"

See you every first Monday of the month at https://airhacks.tv 8pm CET (UTC+1:00). Show is also announced at: meetup.com/airhacks.

Are you nice? :-) Then checkout: the airhacks discord server

1. A more straightforward explanation of the difference between gRPC and REST regarding query APIs
2. Performance of RequestScoped on Quarkus. What about missing EJB features?
3. What are some interesting applications of AI Agents and automation using Java/Quarkus?
4. How can one effectively integrate AI Agents and automation with Quarkus?
5. What advice do you have for someone new to AI Agents and automation who wants to work with Java/Quarkus?
6. How does Quarkus compare to Low-/No-Code interfaces for AI Agents and automation?
7. What are the benefits of integrating AI into the correspondence exchange system?
8. How will AI be used to read, summarise, and categorise documents in the system?
9. What are the challenges of using a local LLM for document processing?
10. How does the system ensure cost-effectiveness by using a local LLM?
11. Time travel, topics from the 34th episode:

    The state of microprofile.io, Motivation for StatusTest, Java EE -- feedback from JUGs, Micro, Swarms and co. the possible killer use case., SPA and JAX-RS. One or multiple projects?, Files filtering and Java FX, REST architecture in 5 mins, Should we keep SOAP?, Personal opinions on article: "Oracle finally targets Java non-payers", CDI with transactions, When should we start to worry about performance?, How we can communicate multiple microservices without share their DTO's?, A lean way to inject properties with Java EE., Java EE vs. Spring, Is it possible to put HTML5 application after the .war has been compiled?, Future of NetBeans, Non blocking IO vs. JDBC, Java EE and scalability, How to connect SPAs with backend efficiently, Java EE vs. Spring Cloud -- how to deal with non functional requirements, Can we start threads in a @Singleton?

Any questions left? Ask now: gist.github.com/AdamBien/df41e421a58f9f8ef0963733f6019725 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

• Android Studio
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• Apache Tomcat
• Apache TomEE
• Apache Geronimo
• Apache JServ
• Eclipse Jetty
• WildFly (JBoss AS)
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• IBM WebSphere Application Server
• IBM WebSphere Application Server Community Edition
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• Orion Application Server
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• SilverStream Application Server
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• New Atlanta ServletExec
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• Jeeves
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• Blazix
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• Pramati Server
• WebGain Application Server
• BEA Tuxedo (Java-enabled)
• JetSpeed
• WebObjects
• Jo! Application Server
• Dynamo Application Server
• Simple Web Server (SWS)
• Winstone Servlet Container
• nanoHTTPD
• TJWS (Tiny Java Web Server)
• Undertow.io
• Grizzly HTTP Server
• Restlet Server
• Akka HTTP
• Play Framework
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• Spark Java
• Ratpack
• Jooby
• Jodd Madvoc
• Vert.x-Web
• Pippo
• Struts2 embedded server
• RestExpress
• JLHTTP
• Simple Framework
• Virgo Server
• Piranha Cloud
• Siwpas (Simple Web Profile Application Server)
• Tengah

The list is also available at: java-archives