adam bien's blog

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" J2EE to Quarkus migration can save around 50% memory for on-premise deployments, EJBs are straightforward to migrate but MDBs with two-phase commit are challenging, Change Data Capture like Debezium is an elegant solution for transaction handling, Running JFR all the time in production is a best practice for on-premise deployments, CryoStat provides visualization for JFR events in OpenShift, Quarkus binary executables work well for AWS Lambda but require managing your own runtime, Using AWS-managed Corretto runtime is advantageous for security patching, Application Load Balancer can route to both Fargate and Lambda behind the same URI, Function URL is the cheapest way to run Lambda but HTTP API Gateway provides nicer URIs, Monolithic applications are still valuable when well-structured, Modern Java with records can make JDBC more appealing than ORMs for complex queries, Cloud provider migration is less about Java code and more about mapping equivalent services, System testing should be done by deploying applications to production-like environments and testing them functionally."

...is ready to watch:

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.

Any questions left? Ask now: gist.github.com/AdamBien/728f7aac35f434b6c0a87d192e61f73d

1. How should I handle MDBs (Message-Driven Beans) and two-phase commits when migrating Java EE applications to Quarkus while minimizing code rewrites?
2. Is it advisable to keep Java Flight Recording (JFR) running continuously in production for capturing data when a pod crashes?
3. What are the best practices for effectively using Java Flight Recording in an OpenShift cluster environment?
4. Is deploying a Quarkus binary executable as a custom runtime for AWS Lambda better than using a container image?
5. How can a Lambda function be used to offload work from Kubernetes/locally hosted Quarkus services during peak demand?
6. 100 episodes back in time:

   Monolithic Java EE?, UI (servlet,JSP) vs. EJB / CDI authentication, JDBC vs. ORMs, implementing a WebService on a JVM vs. on an application server, Docker host resolution and staging, Launching docker images in production, Multiple server instances vs. multiple docker containers, Solr vs. ElasticSearch, Docker RAM limits vs. JVM maxheap, How to learn Java EE and Java, The Purpose of ejb-jar.xml, gRPC and microservices, Handling security patches with Docker, UriInfo with proxies, Approaches to secure JAX-RS services

Any questions left? Ask now: gist.github.com/AdamBien/13fff4f53cf668c9cdfe87ff551bf61a 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

"AWS Lambda authorizers for API Gateway, sealed interfaces in Java, caching strategies and considerations, focus on integration and end-to-end testing over unit testing, writing simple and readable Java code, iterating quickly on projects, differences between Quarkus and Spring, similarities between Java EE/Jakarta EE and Spring development, using vanilla JavaScript effectively, reflections on Java technology evolution over the years"

...is ready to watch:

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.

Any questions left? Ask now: gist.github.com/AdamBien/13fff4f53cf668c9cdfe87ff551bf61a

This 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 and the impact of LLM assistants on design and code structure.

1. caching strategies for databases
2. moving fast, what to refactor, lessons learned
3. the enhanced purpose of sealed interfaces
4. Jfokus conference report
5. Digma product launch
6. BASE and 800 Java shorts
7. 100 episodes back in time: JavaOne impressions,Java EE 8/9 news, contents, roadmaps and caveats,Load balancing Java EE servers on Docker,Oracle JVM vs. others,CDI and clustering,Combining JAX-RS and JSF,"Micro" vs. "Full" application servers and docker,JDBC pool configuration on docker,Portable SAM modules,Java FX and the future,REST API and validation,Consuming REST services (HTTP header interpretation),How to profile server startup,Service communication without docker,How to consume / choose JavaOne sessions?,WildFly monitoring capabilities,Event sourcing and Java EE,REST API doc generation" adam-bien.com/roller/abien/entry/java_ee_8_javaone_impressions

Any questions left? Ask now: https://gist.github.com/AdamBien/99e1996d77ffcbe7ad6ce49b5db4797f 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

1. Jfokus: Real World Lean Java Practices, Patterns, Hacks and Workarounds
   session Jfokus Stockholm 4 February 2025
   https://jfokus.se/talks/2524
2. JUG Helsinki: Pure Java LLM Patterns, Tricks and Hacks for the Enterprise
   session JUG Helsinki Helsinki 19 February 2025
   https://www.meetup.com/helsinki-java-user-group/events/305625114/
3. JavaOne: Real World Lean Java Practices, Patterns, Hacks, and Workarounds [SES1112]
   session JavaOne Redwood Shores March 2025
   https://reg.rf.oracle.com/flow/oracle/javaone25/catalog/page/catalog/session/1724613775255001Kvpl
4. JavaLand: Keynote: 30 Jahre Java - Hypes, Akronyme, Buzzwords und Paradigmen
   keynote JavaLand Nurburgring 1 April 2025
   https://meine.doag.org/events/javaland/2025/agenda/#agendaId.5162
5. JavaLand: No Dependencies: Pure Java AI/LLM Integration
   session JavaLand Nurburgring 1 April 2025
   https://meine.doag.org/events/javaland/2025/agenda/#agendaId.5166
6. JAX: The Best of Java Shorts Show: 100 Snippets in 45 Minutes
   session JAX Mainz 6 May 2025
   https://jax.de/serverside-enterprise-java/automatisierung-java-shell-script/
7. JAX: Pure Java Enterprise AI / LLM Integration Patterns, Hacks und Workarounds
   session JAX Mainz 6 May 2025
   https://jax.de/core-java-jvm-languages/java-enterprise-ai-llm-integration-patterns/
8. geecon: The Best of Java Shorts Show: 100 Snippets in 45 Minutes
   session geecon Krakow May 2025
   https://2025.geecon.org/speakers/info.html?id=972
9. LLM / GenAI Patterns, Architectures and Use Cases with Java[online event]
   airhacks.live workshop 10 July 2025
   https://airhacks.live
10. Hardcore Serverless Java on AWS[online event]
    airhacks.live workshop 17 July 2025
    https://airhacks.live
11. 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

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

"Java well-suited for LLM inference and training, NoOps concept possible with serverless architecture, cloud services offer better automation through APIs, on-premise serverless less beneficial for regular data centers, AppWrite as backend service has pros but vendor lock-in concerns, generative AI unlikely to fully replace backend development, Quarkus offers fast cold start times for serverless functions, evolution of Java ecosystem over 8 years including shift to serverless and cloud-native development"

...is ready to watch:

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.

Any questions left? Ask now: gist.github.com/AdamBien/99e1996d77ffcbe7ad6ce49b5db4797f

"Kubernetes true costs including VPC and network components, Mobile development options with pros and cons, Java's capabilities for local LLM inference, Historical influence of Steve Jobs on Java enterprise development, Repository pattern critique and alternatives, Elastic vs OpenSearch considerations, Approaches to entity validation and error handling, Reflections on Java development practices over time"

...is ready to watch:

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.

Any questions left? Ask now: gist.github.com/AdamBien/c2450966a35afb265aca224e408e3a95

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. re:Invent 2024 conference news
2. Corrections to the calculation of the cost of Kubernetes in the 128th episode (I was too optimistic)
3. Which technology to choose for native clients?
4. Java LLM recap
5. Steve Jobs and Enterprise Java
6. BCE: the location of repositories
7. BCE: organization of the MP Rest Client and its parameters
8. What is SecureRandom?
9. Graylog? ELK? LGTM (Loki for logs, Grafana for visualization, Tempo for traces, and Mimir for metrics)?
10. What is the best approach for bean validation on JPA Entities and 400
11. LangGraph4J vs. LangChain4J

Any questions left? Ask now: https://gist.github.com/AdamBien/355fd0bebcfd5865464cbaf32b0e3e5a 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