adam bien's weblog

Quarkus and LangChain4J - A Match Made in Heaven

2024-10-20T09:47:27.170235002Z

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The #317 airhacks.fm episode with Georgios Andrianakis (@geoand86) about:

langchain4j, Quarkus and the architecture of LLM integration

is available for download.

The Best of Java Shorts Show--Is Available on Github

2024-10-19T04:44:21.358599687Z

The JDD conference organizers asked me to record a short promotion of my talk, so I recorded the very first short. I've been recording (more than 800 and growing) Java shorts: (youtube.com/bienadam/shorts) daily, "from scratch" usually without any dependencies, build tools, or even compilation.

The talk "The Best of Java Shorts Show: 100 Snippets in 50 Minutes" at Devoxx 2024 Belgium was recorded with a selection of the most interesting or popular shorts:

I have received several requests for the source code and have published a selection (>100) of the snippets here: github.com/AdamBien/best-of-java-shorts

Why JVector 3 Is The Most Advanced Embedded Vector Search Engine--airhacks.fm podcat

2024-10-13T10:56:16.062542161Z

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The #316 airhacks.fm episode with Jonathan Ellis (@spyced) about:

JVector 3 ("the most advanced embedded vector search engine written in Java") under the hood and design trade-offs

is available for download.

Live From Devoxx Belgium: Pure Java Enterprise AI/LLM Integration (EAI 2.0)

2024-10-12T15:27:36.535211054Z

This session was presented live at Devoxx Belgium:

From REST API and SDKs to langchain4j to fully managed cloud solutions to local integration with jlama and llama3.java of open source foundation models. In this session I will present architectures, ideas, hacks, and workarounds for integrating LLM with Java enterprise applications. I will illustrate the concepts with Java 21, Quarkus / MicroProfile code and integrate the latest Claude, ChatGPT, llama and AWS Bedrock models. Your questions will be given priority and answered interactively.

Live From Devoxx Belgium: The Best of Java Shorts Show: 100 Snippets in 50 Minutes

2024-10-12T15:28:10.412036155Z

I picked the most interesting youtube.com/bienadam/shorts and presented them live at Devoxx Belgium.

How to: run Java as a shell script, run a Java app without compiling, print an emoji, run an HTTP dev server, use libraries without compiling, colorful logs, access LLMs,run timer jobs, access the clipboard, implement a file watch, main in interfaces, easy file parsing (...) and ~100 other popular Java snippets from youtube.com/bienadam/shorts. No builds, no Maven, no dependencies, just javac and Visual Studio code.

Abstract Classes vs. Interfaces, Performance Benchmarking, JMH, Lambdas and Databases--127th airhacks.tv

2024-10-08T13:16:41.519795625Z

The 2024.10 / 127th edition of airhacks.tv with the following topics:

"String.join() is 30% faster than Collectors.joining(), JMH not always necessary for high-level benchmarking, interfaces slightly faster than abstract classes but the difference is negligible, Quarkus requires no installation - just use the POM file, Quarkus tests are integration tests and should be used sparingly, use shutdown hooks or @PreDestroy for clean connection closure in Lambdas, GraalVM shines in CLI tools and polyglot applications, simple export method for Java version management, JavaFX on mobile is challenging but viable with Gluon, EJBs and some Java EE concepts are outdated, but interceptors and dependency injection are still relevant"

...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/26939d9a232bd0c3b79fd6149bc0815b

Performance Abstract classes vs. Interfaces, Lambda and DB Connections, JMH--Questions for 127th airhacks.tv

2024-10-08T12:17:21.116563293Z

Questions and topics for the 2024.10 / 127th edition of airhacks.tv with the following topics:

performance: abstract class vs. interface Hi, I got an interview question as to which one is faster Abstract class or Interface ? Can you explain please. What is Faster: String.join or Collectors.joining?
DB connections and lambda shutdown
performance measurement with or without JMH: "PLEASE use the microbenchmark harness in future videos. I have the impression, that this suggests that performance measurements with after-minus-before is a good idea." from: What is Faster: String.join or Collectors.joining?
the 100-episodes back time machine. Questions from: 27th airhacks.tv:
"Interceptors and Dependency Injection Singleton EJBs, CDI and concurrency BCE in Eclipse and can Boundary communicate with Entity? Stateful EJBs vs. SessionScoped"

Any questions left? Ask now: https://gist.github.com/AdamBien/0e1193cd4697658cd226e4c370bec94d 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

The AI Revolution in Java Development and Devoxx Genie--airhacks.fm podcast

2024-10-06T09:24:22.614338831Z

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The #315 airhacks.fm episode with Stephan Janssen (@Stephan007) about:

the LLM Revolution in software development and building the Devoxx Genie plugin

is available for download.

From Apache Cassandra to Serverless: Exploring Cloud-Native Databases--airhacks.fm podcast

2024-10-05T16:42:50.579045652Z

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

The #314 airhacks.fm episode with Jake Luciani (@tjake) about:

NoSQL, Cassandra, DynamoDB, cloud-native databases, and LLMs integration with pure Java

is available for download.

JSON validation, DTOs, Microprofile, Lift and Shift, JSONPath--126th airhacks.tv

2024-10-01T10:56:37.604624322Z

The 2024.9 / 126th edition of airhacks.tv with the following topics:

"JSON validation using JSONPath and custom validators, running Jakarta EE apps on OpenShift, comparing JBoss EAP and Quarkus applications, cross-platform GUI development options, constructor injection vs field injection debate, integrating Microprofile with Java 21, rebuilding blog engine with Quarkus and Microprofile, JSON vs DTOs, Lombok vs plain Java Record Classes, Jakarta EE, MicroProfile vs plain Java 21"

...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.

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

Revolutionizing AI with Java: From LLMs to Vector APIs--airhacks.fm podcast

2024-09-28T12:28:46.894115656Z

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

The #313 airhacks.fm episode with Alfonso Peterssen (@TheMukel) about:

pure Java LLM integration with and without GraalVM

is available for download.

Late 2024 Conferences, Java User Groups (JUG) and Workshops

2024-10-08T21:15:27.587585149Z

#127th airhacks.tv Questions and Answers #slideless[online event]
live streaming show 7th October 2024
https://www.meetup.com/airhacks/events/303564256/
Devoxx Belgium: Pure Java Enterprise AI/LLM Integration (EAI 2.0)
conference session Devoxx Belgium Antwerpen Kinepolis 10th October 2024
https://www.devoxx.be/talk/pure-java-enterprise-ai-llm-integration-eai-2-0-/
Devoxx Belgium: The Best of Java Shorts Show: 100 Snippets in 50 Minutes
conference session Devoxx Belgium Antwerpen Kinepolis 10th October 2024
https://www.devoxx.be/talk/the-best-of-java-shorts-show-100-snippets-in-50-minutes/
Silesia Java User Group (Silesia JUG): Rethinking Enterprise Java Development
JUG session Silesia Java User Group (Silesia JUG) Katowice 15th October 2024
https://www.meetup.com/silesia-jug/events/303542249/
OC for Java: Conflicting architectures: Public vs. Private Clouds with Jakarta EE
OCX Conference session OC for Java Mainz, Halle 45 23rd October 2024
https://www.ocxconf.org/event/778b82cc-6834-48a4-a58e-f883c5a7b8c9/websitePage:26bc9d91-446a-49e1-9f08-8fcc4680073e?session=6b272b65-a64d-4d95-b1a2-6c8326cd5cff&shareLink=true
W-JAX Munich: Pure Java Enterprise AI / LLM Integration Patterns, Hacks und Workarounds
JUG session W-JAX Munich Munich 5th November 2024
https://jax.de/serverside-enterprise-java/java-enterprise-ai-llm-integration-patterns-hacks-workarounds/
W-JAX Munich: Rethinking Enterprise Java Development
JUG session W-JAX Munich Munich 5th November 2024
https://jax.de/serverside-enterprise-java/rethinking-enterprise-java-development/
W-JAX Munich: The Best of Java Shorts Show: 100 Snippets in 45 Minutes
JUG session W-JAX Munich Munich 5th November 2024
https://jax.de/serverside-enterprise-java/automatisierung-java-shell-script/
Single Table Design with Java[online event]
airhacks.live workshop 17 December 2024
https://airhacks.live
LLM / GenAI Java Bootstrap[online event]
airhacks.live workshop 19 December 2024
https://airhacks.live

JAX-RS With- and Without Reactive Programming in Quarkus--airhacks.fm podcast

2024-09-25T19:10:59.514357933Z

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

The #312 airhacks.fm episode with Georgios Andrianakis (@geoand86) about:

performance and scalability considerations for JAX-RS and reactive programming in various use cases, JSON-B, Jackson, reactive Hibernate and LangChain4j

is available for download.

Developer and Database Administrator--airhacks.fm podcast

2024-09-10T13:27:13.676463340Z

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The #311 airhacks.fm episode with Gerald Venzl (@GeraldVenzl) about:

Oracle Database, performance and software development

is available for download.

Java 22 and 23 Features--airhacks.fm podcast

2024-09-03T10:09:27.024322804Z

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

The #310 airhacks.fm episode with Nicolai Parlog (@nipafx) about:

Java 22 / 23 Features, Java and LLMs, Java build tools, beginner's experience and "enterprise" Java AI

is available for download.

Constructor DI, Interface Misuse, JSON validation, Re-Architecting, Lift and Shift, Docker Redeployment--Questions for 126th airhacks.tv

2024-09-02T14:39:47.400471916Z

Questions and topics for the 2024.9 / 126th edition of airhacks.tv with the following topics:

Thoughts on constructor injection v2
misusing interfaces
JSON object validation
thoughts on MicroProfile and Jakarta EE
re-architecting, lift and shift and: adambien.blogmigration and vimeo.com/ondemand/microprofile training
private vs. public cloud hosting
> 650 youtube Java shorts youtube.com/bienadam/shorts
the 100-episodes back time machine. Questions from: 26th airhacks.tv:
Java EE 8 News, the guardians and the background JSF 2, NIO, asynchronous programming, performance and 2k concurrent users Injecting subtypes and delayed execution Character encoding and JAX-RS How to deal with shared business methods (IBAN) Subjective opinions about BPM with objective arguments JPA entity injection and merging best practices Multitenancy in Java EE How to pass tenant information with the request? How to migrate away from RichFaces? Source code analysis for transaction processing Where to put BaseEntity in ECB? Redeployment in Docker Distributed service discovery, distributed transactions, logging and debugging and microservices

Any questions left? Ask now: gist.github.com/AdamBien/95544fc7692e0ce518ffb17573507443and 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

From Spring to Quarkus: A Java Developer's Journey--airhacks.fm podcast

2024-08-24T14:57:23.746306970Z

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The #309 airhacks.fm episode with Georgios Andrianakis (@geoand86) about:

J2EE, NodeJS and Spring development and the transition to Quarkus.

is available for download.

How Micrometer Happened--airhacks.fm podcast

2024-08-24T14:26:51.936278052Z

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

The #308 airhacks.fm episode with Jonathan Schneider (@jon_k_schneider) about:

observability, metrics, spinnaker and micrometer

is available for download.

How the Java-Optimized Vega Chip Happened--airhacks.fm podcast

2024-08-24T14:24:46.100667617Z

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

The #307 airhacks.fm episode with Gil Tene (@giltene) about:

building cutting edge Java hardware

is available for download.

How Java HotSpot Compiler Happened--airhacks.fm podcast

2024-08-06T12:27:39Z

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

The #306 airhacks.fm episode with Cliff Click (@cliff_click) about:

compiler fascination, optimization and the Java HotSpot compiler

is available for download.

Reporting, Long Running Actions, Constructor Injection, Guava Services--Questions for 125th airhacks.tv

2024-08-05T07:58:08Z

Questions and topics for the 2024.8 / 125th edition of airhacks.tv with the following topics:

Thoughts on constructor injection
Guava Services vs. Quarkus and Micronaut
Thoughts on MicroProfile Long Running Actions (LRA)
Time machine. Questions from: 25th airhacks.tv:
EJB vs CDI. Or what is the future?, BCE component visibility, When to use @Suspended and ExecutorService?, How to implement a long running task?, JavaScript: ES2015, ES2016 or TypeScript. Angular or Angular2? Or how to start a webproject, Transactions and consistency in Java EE Microservices, Is JMX still useful?, Service call concurrency and parallelization, Partial responses with JAX-RS, Entities: rich or anemic?, CorrelationIds in JAX-RS,Are EARs still available?, MVC: is it too late in Java EE 8?, DI in subresources, Batch checkpoints and persistence, What is the benefit of a thread pool?, PHP to Java EE migration,Sample Java EE projects, Are microservices only interesting for refactoring?

Any questions left? Ask now: gist.github.com/AdamBien/edbfe339f2f1fbc7e5e2b219d51d5735 and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds or less with Java

How Bach - "The Java Shell Builder" Happened --airhacks.fm podcast

2024-07-29T13:05:42Z

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

The #305 airhacks.fm episode with Christian Stein (@sormuras) about:

Hudson, Jenkins, JUnit, game development in Java and no-dependencies Java build tools

is available for download.

From J2ME, over Bluetooth and Speech Recognition to AI--airhacks.fm podcast

2024-07-21T08:46:29Z

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

The #304 airhacks.fm episode with Bruce Hopkins about:

J2ME, bluetooth, speech recognition, automation ChatGPT. Also checkout the book: javachatgptbook.com

is available for download.

Project Valhalla: Value Types, Nullability and Float16--airhacks.fm podcast

2024-07-14T16:53:14Z

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

The #303 airhacks.fm episode with Paul Sandoz (@paulsandoz) about:

Project Panama, Vector API, Value Types, machine learning, benefits of nullability in API design and new datatypes like e.g. Float16 in Java

is available for download.

OpenRewrite: Transforming Java Code at Scale--airhacks.fm podcast

2024-07-07T13:26:39Z

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

The #302 airhacks.fm episode with Jonathan Schneider (@jon_k_schneider) about:

OpenRewrite features, added value of the Moderne Platform and opensource strategies

is available for download.

Interviewed by a Recruiter: "Java and AWS Cloud: Building Scalable Enterprise Solutions"

2024-07-05T02:49:01Z

A chat with a recruiter: Michal Juhas could be fun! Our conversation ranged from the latest Java innovations to Infrastructure as Code (IaC) to serverless computing to hiring questions:

Dying Java DBs, EJB Migrations, Kubernetes, Serverless Java, Maven, Gradle, Native Images--Questions for 124th airhacks.tv

2024-07-01T04:09:01Z

Questions and topics for the 2024.7 / 124th edition of airhacks.tv with the following topics:

How to deal with EJB passivation in CDI
How to deal with EJB pooling in CDI
Migration from CMP Entities to recent Jakarta EE / MicroProfile
GeeCON session "Containerless, Bloatless, YAML-less, Serverless Java #slideless" questions
Why is Kubernetes recommended in private dc but not in public cloud? Why one should not mvn clean? Can you show what is actually inside function.zip file? Why maven not gradle? Is it a good idea to building lambda as a quarkus native image? As the bucket's name is generated, would the bucket be recreated after every deploy of the lambda? What vscode plugins are you using for this kind of development in Java? How to manage multiple environments in this setup ( staging | prod ) How to share s3 information with another project for example lambda? How are you versioning and deploying the app for green/blue deployments to run two versions at a time?
Time machine / questions from 24th airhacks.tv:
Is Java EE Dying? Cross-component business transactions and BCE Webjars?! Content negotiation Concurrency, SLSB and throttling Runtime pluggability and Java EE, CDI, OSGi Groovy-based DSL for configurability? Caches in crippled network environments DAOs, Entities, CRUD and duplication CDI in EAR Portlets vs. Single Page apps Annotation-based configuration Managing common data with REST (aka microservices) Streams vs. old collections How to deal with abstract classes in BCE?

Any questions left? Ask now: https://gist.github.com/AdamBien/463d60f4fa37489120df7816d74ff3b3 and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds or less with Java

JVector: Cutting-Edge Vector Search in Java--airhacks.fm podcast

2024-06-30T11:35:59Z

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

The #301 airhacks.fm episode with Jonathan Ellis (@spyced) about:

JVector database implementation and design choices

is available for download.

Object-Oriented Programming (OOP) vs. Data-Oriented Programming (DOP) in Java--airhacks.fm podcast

2024-06-23T10:34:14Z

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

The #300 airhacks.fm episode with Nicolai Parlog (@nipafx) about:

the killer features of Object-Oriented Programming (OOP) and Data-Oriented Programming (DOP) in Java

is available for download.

From JSP to Rife and From Kotlin to Java--airhacks.fm podcast

2024-06-17T10:44:38Z

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

The #299 airhacks.fm episode with Erik C. Thauvin (@ethauvin) about:

migrating Java projects to the Rife 2 framework and moving from Kotlin to Java

is available for download.

Live from JCON Europe 2024: "Serverless Java #slideless"

2024-06-14T13:17:33Z

The talk "Serverless Java #slideless" was recorded at the JCON Europe 2024.

I used the following template in this talk as base for the examples: aws-functionurl-cdk-only. However, most of my real-world projects rely on the: aws-quarkus-lambda-cdk-plain project.

See you at airhacks.live!.

The abstract:

Serverless is the least complex, most secure, cost-effective (or even free) architecture for most enterprise applications and is compatible with the "Green IT" premises. In this session, I will explain the inner workings of a serverless application from a code perspective with IaC provisioning with Java, real-world MicroProfile code, and live deployments. I will answer your questions in real-time.

The bld Power User--airhacks.fm podcast

2024-06-09T15:35:26Z

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

The #298 airhacks.fm episode with Erik C. Thauvin (@ethauvin) about:

using bld in production and the differences to Apache Maven and Gradle

is available for download.

Lambda Communication, EDAs, Step Functions and llama--Questions for 123rd airhacks.tv

2024-06-04T13:32:21Z

Questions and topics for the 2024.6 / 123rd edition of airhacks.tv with the following topics:

Conferences attended: jCon and GeekOn
Time machine show reviewing questions from 2016
Upcoming courses on serverless NoSQL with Java and using LLMs in enterprise
Interesting podcast episodes on Kotlin, LLM integration with Java, and JVector database
Various ways for AWS Lambda functions to communicate with each other and external services [from: https://discord.gg/airhacks]
llama2.java--Llama 2 in With One Pure Java 21 File [video: https://youtu.be/71t5vjSbfsI]

Any questions left? Ask now: https://gist.github.com/AdamBien/0909ac2cbae6781b868d3e1c00ac4e4c and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds or less with Java

Observability-Driven Development with Digma, Serverless and Java--airhacks.fm podcast

2024-06-02T08:45:12Z

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

The #297 airhacks.fm episode with Roni Dover (@doppleware) about:

Digma, continuous observability, serverless computing and Java

is available for download.

Exploring ONNX, Embedding Models, and Retrieval Augmented Generation (RAG) with Langchain4j--airhacks.fm podcast

2024-06-01T09:18:11Z

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

The #296 airhacks.fm episode with Dmytro Liubarskyi (@langchain4j) about:

ONNX format and runtime for running neural network models in Java, Quarkus / MicroProfile integration, and the pragmatic added value of langchanin4j.

is available for download.

High-Performance Java, Or How JVector Happened--airhacks.fm podcast

2024-05-18T10:31:07Z

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

The #295 airhacks.fm episode with Jonathan Ellis (@spyced) about:

the early days of Apache Cassandra, to create JVector: an embedded vector search engine in Java, and the advantages of Java for building high-performance and scalable softwarere

is available for download.

Modern Java in the Cloud or OnPrem--BaselOne Keynote

2024-05-14T12:03:33Z

Make the right decisions in the cloud and on-premises with modern Java. A BaselOne 2023 keynote:

LLama2.java: LLM integration with A 100% Pure Java file--airhacks.fm podcast

2024-05-13T00:44:51Z

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

The #294 airhacks.fm episode with Alfonso Peterssen (@TheMukel) about:

Pure Java LLM (LLama2-like) Inference with llama2.java

is available for download.

Also checkout llama2.java in action:

Serverless Java with Quarkus, Parallel Streams, and Epsilon GC--122nd airhacks.tv

2024-05-07T15:42:09Z

The 2024.5 / 122nd edition of airhacks.tv with the following topics:

History of airhacks.tv and airhacks.com workshops
Migrating JAX-RS to serverless using Quarkus: Quarkus translates JSON HTTP events to JAX-RS invocations
Difference between Quarkus and Micronaut: Build-time deployment and extensions in Quarkus
Using Lambda for load balancing in front of backend cloud services
Java performance and energy efficiency compared to other languages based on a study
Parallel streams and CompletableFuture for optimizing access to DynamoDB and S3
Purpose of Serializable marker interface in Java
Using Epsilon GC (no-op garbage collector) in Java for serverless
Comparing Java EE and Spring performance from 8 years ago

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

Serverless Java, Lambda Load Balancer, Serializable--Questions for 122st airhacks.tv

2024-05-06T00:38:09Z

Questions and topics for the 2024.5 / 122nd edition of airhacks.tv with the following topics:

Serverless: Quarkus vs. plain Java [from: https://discord.gg/airhacks]
Serverless: Java vs. Python [from: https://discord.gg/airhacks]
Lambda as Load Balancer?
Parallel execution without reactive frameworks
The purpose of Serializable interface
How to learn Quarkus [video: https://youtu.be/H7O7mIJCLFY]

Any questions left? Ask now: https://gist.github.com/AdamBien/39f104488136a52d16221a310f4581d1 and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds or less with Java

How Kotlin Happened--airhacks.fm podcast

2024-05-05T14:49:27Z

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

The #293 airhacks.fm episode with Anton Arhipov (@antonarhipov) about:

the evolution of the Kotlin programming language

is available for download.

How Azul Happened--airhacks.fm podcast

2024-04-28T11:36:14Z

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

The #292 airhacks.fm episode with Gil Tene (@giltene) about:

building Java hardware and how Azul happened

is available for download.

Pure Java AI--airhacks.fm podcast

2024-04-20T11:27:45Z

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

The #291 airhacks.fm episode with Dr. Zoran Sevarac (@zsevarac) about:

full-stack Java AI with DeepNetts and GPU acceleration

is available for download.

How to Quickly Switch Between JDKs Without Tools

2024-04-18T14:13:52Z

You can quickly switch between JDKs with two aliases (tested on MacOS):

alias j8='export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_201.jdk/Contents/Home;javaPATH' alias javaPATH='export PATH=$JAVA_HOME/bin:$PATH'

You can switch to Java 8 by running j8 in your terminal. (Quickly switching to Java 8 is especially useful for code archealogists and historians.)

How OpenRewrite Happened--airhacks.fm podcast

2024-04-14T10:58:18Z

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

The #290 airhacks.fm episode with Jonathan Schneider (@jon_k_schneider) about:

Java, Netflix, large-scale refactoring and OpenRewrite

is available for download.

bld vs. Apache Maven--Or Pure Java vs. XML

2024-04-12T05:38:21Z

A MicroProfile / Jakarta EE Apache Maven pom.xml is 31 lines of code or less.

A Maven configuration for a simple Java SE project is twice as long.

In this screencast I'm comparing Apache Maven to bld ("bld: The Hypersonic Java Build Tool"):

Also checkout the airhacks.fm podcast: "No Dependencies--Or How Rife 2 and Bld Happened"

bld: The Hypersonic Java Build Tool

2024-04-11T06:31:08Z

Java 22 introduced the JEP 458 "Launch Multi-File Source Code Programs". This allows you to create CLI applications and automation scripts in no time.

bld is a pure Java build tool that uses Java as the configuration:

Also checkout the airhacks.fm podcast episode: "No Dependencies--Or How Rife 2 and Bld Happened" with Geert Bevin, the creator of bld.

Spring / Summer 2024 Conferences, Events and Workshops

2024-04-09T14:40:31Z

MIXER learning festival: Productivity, Fun, Security & Cost-savings with Serverless Java
workshop MIXER learning festival Organica building in Ostrava 16 Apr 2024
https://skillbill.tietoevry.com/skill_bill/elevate-your-aws-game-with-high-speed-serverless-solutions/
Meetup: Building Serverless Java Apps with Serverless Generative AI on AWS
conference session Meetup Organica building in Ostrava 16 Apr 2024
https://www.digital-futures.eu/meetups/buildig-serverless-java-apps-with-serverless-generative-ai-on-aws-with-adam-bien/
Digital Crafts Day: Cloud Native Explained--Or What Is Exactly To Do?
keynote Digital Crafts Day weiden 19 Apr 2024
https://www.dc-nordoberpfalz.de/DigitalCraftsDay/2024
JAX Conference: EJB Developer? Dann aber auch Enterprise-Serverless-Java-AWS-Lambda-Experte
conference session JAX Conference Mainz 24 Apr 2024
https://jax.de/core-java-jvm-languages/ejb-serverless-aws-lambda-java-experte/
JAX Conference: YAML-less, Config-less, Boilerplate-less, Serverless Enterprise Java #slideless
conference session JAX Conference Mainz 24 Apr 2024
https://jax.de/core-java-jvm-languages/yaml-less-configless-serverless-enterprise-java/
JCON Europe: Serverless Java #slideless
conference session JCON Europe cologne 14th Mai 2024
https://2024.europe.jcon.one/schedule
geecon: Containerless, Bloatless, YAML-less, Serverless Java #slideless
conference session geecon krakow 16 Mai 2024
https://2024.geecon.org/speakers/info.html?id=894
University of Regensburg: Java Bootstrap
JUG event University of Regensburg regensburg 19 June 2024
TBD
online: Persistence Patterns for Serverless Java on AWS[online event]
airhacks.live workshop 11 July 2024
https://airhacks.live
online: Serverless Generative AI with Java on AWS[online event]
airhacks.live workshop 25th July 2024
https://airhacks.live

emprop="url">https://airhacks.live ttendanceMode" content="OnlineEventAttendanceMode"> online: Serverless Generative AI with Java on AWS[online event]

airhacks.live workshop 25th July 2024

https://airhacks.live

Java 22, System Tests, Applets, 500 Java Shorts--Questions for 121st airhacks.tv

2024-04-08T11:03:37Z

Questions and topics for the 2024.4 / 121st edition of airhacks.tv with the following topics:

> 500 Java Shorts: youtube.com/bienadam/shorts
How to System Test Jakarta EE / MicroProfile applications?
Applets, WASM, and PWAs
How far you can get without big frameworks
...only Java 22 can do that

Any questions left? Ask now: https://gist.github.com/AdamBien/c5193c88f02250bba0b2995b567228c7 and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds or less with Java

Underscore, Pattern Matching, Java LTS And When Previews Are Stable--airhacks.fm podcast

2024-04-08T01:41:34Z

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

The #289 airhacks.fm episode with Nicolai Parlog (@nipafx) about:

underscores, deconstruction, pattern matching, and minimalistic build tools

is available for download.

Integrating AI with Java: Quarkus and Langchain4j--airhacks.fm podcast

2024-03-31T13:39:32Z

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

The #288 airhacks.fm episode with Dimitris Andreadis (@dandreadis) about:

LangChain4j, Quarkus, Enterprise Java and LLMs

is available for download.

How Linkblog Happened--airhacks.fm podcast

2024-03-23T13:12:31Z

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

The #287 airhacks.fm episode with Erik C. Thauvin (@ethauvin) about:

building "what you needed" with Java and the road to linkblog

is available for download.

A Better JNI: Project Panama--airhacks.fm podcast

2024-03-18T05:18:07Z

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

The #286 airhacks.fm episode with Paul Sandoz (@paulsandoz) about:

the differences between Project Panama and JNI, Java's GPU optimizations and Code Reflection

is available for download.

How LangChain4j Happened--airhacks.fm podcast

2024-03-13T04:31:43Z

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

The #285 airhacks.fm episode with Dmytro Liubarskyi (@langchain4j) about:

the road to langchain4j, LLMs integration with Java and Quarkus

is available for download.

Framework-less,Real World Java EE (Patterns) in 2024, VSCode and Java, Kubernetes Platform, Session Management--Questions for 120th airhacks.tv

2024-03-04T13:28:29Z

Questions and topics for the 2024.3 / 120th edition of airhacks.tv with the following topics:

Why do you waste your time/energy by using Vscode instead of IntelliJ IDEA?
Is Java EE falling out of favour?
Real World Java EE Patterns-Rethinking Best Practices in 2024
Thoughts about the Kubernetes "engine"
How far you can get without big frameworks in professional Java Enterprise?
Time machine (Nov 03, 2015):
1. How do you compare OOP with Functional programming and increasing trend with Functional ?
2. Database access in a SaaS-Environment (JavaEE). One database per user. Best way to add dynamically database conf/connections for new users?
3. Recommendations to ensure the high-performance & high-availability in Java EE applications?
4. SOAP and duplicated namespaces after server upgrade
5. REST with proxies and JSON over DTOs
6. A beginners guide to application servers
7. How to separate Control from Boundary on a real world example
8. How I use Maven release plugin and possible strategies
9. SessionId mechanism between a WebApp and JavaScript client
10. How to kickstart Hazelcast in Java EE
11. My view on OOP and trending functional languages. From JavaOne Airhacks BoF
12. Database access in a SaaS-Environment (JavaEE). One database per user. Best way to add dynamically database conf/connections for new users? JavaOne Airhacks BoF
13. Mixing Primefaces with various JavaScript frameworks. From Effective Java EE comment

Any questions left? Ask now: https://gist.github.com/AdamBien/fbf7291d3af942be1c92f163564d0e9c and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds or less with Java

No Dependencies--Or How Rife 2 and Bld Happened--airhacks.fm podcast

2024-03-04T03:57:45Z

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

The #284 airhacks.fm episode with Geert Bevin (@gbevin) about:

the "No Dependencies" approach, Java templates, bidirectional templates in Rife, the Bld build tool, Rife 2 web framework, Java's productivity, Kotlin and more.

is available for download.

From Hexagonal Architectures to Data Oriented Programming--airhacks.fm podcast

2024-02-26T02:43:33Z

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

The #283 airhacks.fm episode with Jose Paumard (@JosePaumard) about:

the cost of changing code, hexagonal architecture, decoupling, and Object Oriented Programming vs Data Oriented Programming in Java

is available for download.

TornadoVM, Paravox.ai: Java, AI, LLMs and Hardware Acceleration--airhacks.fm podcast

2024-02-19T03:48:05Z

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

The #281 airhacks.fm episode with Juan Fumero (@snatverk) about:

Integrating LLVMs running on accelerated hardware with Java and TornadoVMs and the Java / AI startup: paravox.ai

is available for download.

Java and eBPF--airhacks.fm podcast

2024-02-11T20:12:12Z

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

The #281 airhacks.fm episode with Johannes Bechberger (@parttimen3rd) about:

Developing eBPF programs with Java and migrating Python tooling to Java with Project Panama

is available for download.

OIDC, WASM, Java as Windows Service, Secrets Management, Authentication, Eclipse Store, Event Bridge--119th airhacks.tv

2024-02-08T13:45:59Z

The 2024.2 / 119th edition of airhacks.tv with the following topics:

Authentication with Quarkus using OpenID Connect
The complexity of OpenID Connect
Proposing new Java features
Comparing Quarkus with Open Liberty and Helidon
WASM and Java isolation techniques
Running Java programs as Windows services
Persisting data with Eclipse Microstream
Microstream vs. relational databases
Tools for generating architecture diagrams
Clustering, Consistency and Scalability
Managing secrets on AWS
Events routing vs data streaming on AWS

Discussed technologies:

Quarkus, Open Liberty, Helidon, Eclipse MicroProfile, Tanuki, OpenID Connect, OAuth, AWS CodeArtifact, AWS EventBridge, AWS Kinesis, HashiCorp Vault, DynamoDB, S3, Postgres, Keycloak, Cognito, Microstream, Eclipse Store, DrawIO, MagicDraw, PlantUML, yUML, Lucidcharts

Any questions left? Ask now: gist.github.com/AdamBien/fbf7291d3af942be1c92f163564d0e9c and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds or less with Java

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

WASM, Java as Windows Service, Uncanny Valley, Secrets Management, Authentication, Staging--Questions for 119th airhacks.tv

2024-02-05T14:26:48Z

Questions and topics for the 119th airhacks.tv:

WASM vs. Java restrictions and isolation
Java as Windows Service
How to propose new Java features
How to draw architectural diagrams--the uncanny valley
How to deal with secrets in the cloud (...People tend to feel comfortable with some cloud provided vault that gives you environment variables that I believe is quite promiscuous as anybody can issue an env command and see them all...) from: discord.gg/airhacks
The time machine: relevant questions from the 19th airhacks.tv (2015):
Practices for securing 3rd-party API credentials, Is it really needed for a professional java developer to read a whole book on IDE? Or a beginner to spend so much time to understand an IDE rather than focusing on the language?, Can be something 6.4x more productive than Java EE?, How to implement authentication in Java EE applications?, ResourceBundle injection in Java EE, What are JavaBeans, Enterprise JavaBeans, ManagedBeans and BackingBeans?, Staging Java EE applications with docker, Pros and Cons of EJBs and clustering, Encapsulation violation: with or without DTOs, Thoughts on TDD

Any questions left? Ask now: gist.github.com/AdamBien/fe338c0d125676255c5cfc4f0dc5dea8 and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds or less with Java

Virtual Threads and Scoped Values with Jose--airhacks.fm podcast

2024-02-04T19:48:35Z

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

The #280 airhacks.fm episode with Jose Paumard (@JosePaumard) about:

Project Loom, virtual threads, structured concurrency, scope values, debugging reactive code, replacing thread locals, running same code in serverless or threaded environments

is available for download.

Java, Continuations and How Rife Happened--airhacks.fm podcast

2024-01-29T04:23:42Z

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

The #279 airhacks.fm episode with Geert Bevin (@gbevin) about:

creating the Rife web framework with continuations in Java, refactoring to Java 17 and Java's productivity

is available for download.

First Events and Conferences in 2024

2024-01-22T06:18:06Z

Voxxed Days CERN: Serverless Java #slideless
a nearly slideless session Voxxed Days CERN CERN Geneva 23 Jan 2024
https://cern.voxxeddays.com/talk/?id=5803
OOP conference : Enterprise Serverless Monoliths – Or Stay On-Premise
a nearly slideless session OOP conference Munich 1 Feb 2024
https://www.oop-konferenz.de/oop-2024/programm/konferenzprogramm#item-6686
live streaming Q & A show: 119th airhacks.tv Q & A live streaming [online event]
I'm answering questions live and from https://gist.github.com/AdamBien/fe338c0d125676255c5cfc4f0dc5dea8 5 Feb 2024
https://www.meetup.com/airhacks/events/298707415/
JAX conference: EJB Developer? Dann aber auch Enterprise-Serverless-Java-AWS-Lambda-Experte
a nearly slideless session JAX conference Rheingoldhalle Mainz 24 Apr 2024
https://jax.de/core-java-jvm-languages/ejb-serverless-aws-lambda-java-experte/
JAX Conference: YAML-less, Config-less, Boilerplate-less, Serverless Enterprise Java #slideless
a nearly slideless session JAX Conference Rheingoldhalle Mainz 24 Apr 2024
https://jax.de/core-java-jvm-languages/yaml-less-configless-serverless-enterprise-java/

Java at Azul: The Interesting Features--airhacks.fm podcast

2024-01-21T18:11:33Z

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

The #278 airhacks.fm episode with Gerrit Grunwald (@hansolo_) about:

the state of Java desktop applications and the interesting features of Azul's Java

is available for download.

Project Babylon--airhacks.fm podcast

2024-01-15T04:13:24Z

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

The #277 airhacks.fm episode with Paul Sandoz (@paulsandoz) about:

Code Reflection, Code Model, JNI 2.0 or integrating Java with GPUs using Project Babylon

is available for download.

Java and Gaming, Optionals, Paper Engine vs. Spigot, ESBs--118th airhacks.tv

2024-01-08T13:34:34Z

Questions and topics for the 118th airhacks.tv:

Is Java good for game development?
Thoughts on Optional
Paper Engine vs. Spigot
Time Machine: 100 episodes back:
How to replace the Java EE Principal?,NPE issue in afterburner.fx?,Java EE in a movie streaming startup?,What is InjectionPoint and Produces?,Opinion about dukescript.com,MVC vs. ECB, data model vs. view model and what is a component?,How to build your custom server?,Pros and Cons of ESBs and the relation to Java EE,Does Java FX follow the Passive View MVP Pattern?,Java Mission Control and webapps trouble shooting,EJB vs. CDI,Exposing public and private JAX-RS APIs,Reactive programming and Java EE,Microservice integration with or without a Service Bus
Thoughts on JSF, JSPs and Java

Any questions left? Ask now: gist.github.com/AdamBien/732d40904a07286deeb2e90e6df9014c and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds or less with Java

A Compiler Nerd Builds a Tiny Profiler--airhacks.fm podcast

2024-01-07T18:47:52Z

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

The #276 airhacks.fm episode with Johannes Bechberger (@parttimen3rd) about:

compiler love, openJDK work, SAP machine, flame graphs and building profilers

is available for download.

A Helidon Conversation--airhacks.fm podcast

2023-12-29T07:15:32Z

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

The #275 airhacks.fm episode with David Kral (@VerdentDK) about:

Helidon, reactive programming, "no dependencies" and enjoying security

is available for download.

Work Smart, Take Responsibility and Xmas in Brazil--airhacks.fm podcast

2023-12-23T08:30:43Z

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

The #274 airhacks.fm episode with Bruno Souza (@brjavaman) about:

working hard vs. smart, Java for task automation, how to make projects successful, and xmas in Brazil

is available for download.

The Long Road to Java and Kotlin--airhacks.fm Podcast

2023-12-17T19:59:55Z

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

The #273 airhacks.fm episode with Anton Arhipov (@antonarhipov) about:

competitive swimming, software engineering, Java and Kotlin

is available for download.

Minecraft Influenced JSON-B Design--airhacks.fm podcast

2023-12-10T15:23:40Z

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

The #272 airhacks.fm episode with David Kral (@VerdentDK) about:

Software Design, premature optimizations, Helidon and JSON-B and performance

is available for download.

From Image Recognition to CoffeCast--airhacks.fm podcast

2023-12-03T12:36:18Z

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

The #271 airhacks.fm episode with Jose Paumard (@JosePaumard) about:

high performance image recognition, super computers, AI confidence and Java

is available for download.

Lambda Monoliths, Hypermedia Systems, Java Template Engine, Snapstart and CraC--117th airhacks.tv

2023-12-03T12:14:27Z

Questions and topics for the 117th airhacks.tv:

Java monoliths as Lambda
Cost Driven Architectures challenges
Hypermedia Systems
Java Template Engine
Lambda Snapstart Experiences
Per user Locale scope and CDI
Service service = new ServiceImpl()
Time travelling or the 17th airhacks.tv: 50 MB WARs, Kafka, threading and akka

Any questions left? Ask now: gist.github.com/AdamBien/24c8c38937cfa43c25676076c231896c and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds or less with Java

JUG Vienna, Ya!vaConf, airhacks.tv and Airhacks Workshops

2023-12-02T02:49:42Z

Java User Group (JUG) Vienna: Reasonable Cloud Practices with Java on AWS
session Java User Group (JUG) Vienna vienna 4 Dec 2023
https://www.meetup.com/java-vienna/events/296033339/
airhacks.tv: 117th airhacks.tv Questions and Answers [online event]
live Q & A stream 5 Dec 2023
https://www.youtube.com/@bienadam/streams
airhacks.live: AWS Security, Authentication and Authorization for Java [online event]
airhacks.live workshop 7 Dec 2023
https://airhacks.live
Ya!vaConf: Cloudy Patterns for Enterprise Java [online event]
session 8 Dec 2023
https://yavaconf.com/#agenda-section
airhacks.live: Serverless Java Patterns and Best Practices on AWS [online event]
airhacks.live workshop 14 Dec 2023
https://airhacks.live

Not Injectable Principals, Quarkus, MicroProfile and Smallrye--airhacks.fm podcast

2023-11-26T13:44:20Z

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

The #270 airhacks.fm episode with Martin Stefanko (@xstefank) about:

promotions, the definition of titles, the importance of MicroProfile and standards, Quarkus and SmallRye.

is available for download.

Why Kotlin is Better Than Java--airhacks.fm podcast

2023-11-19T15:31:32Z

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

The #269 airhacks.fm episode with Ingo Kegel (@IngoKegel) about:

Java vs. Kotlin and Kotlin's "killer" features

is available for download.

How Han Solo wrote SteelSeries--airhacks.fm podcast

2023-11-12T19:37:58Z

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

The #268 airhacks.fm episode with Gerrit Grunwald (@hansolo_) about:

Java portability, user interfaces, Sun Microsystems, Java FX, Java Swing and building pixel perfect UI in Java

is available for download.

Late 2023 JUGs, Workshops and Conferences

2023-11-07T14:22:53Z

w-jax: J2EE, Java EE, Jakarta EE ...und was machen wir jetzt?
session w-jax munich conference 8 Nov 2023
https://jax.de/serverside-enterprise-java/java-ee-serverless/
Java User Group (JUG) Vienna: Reasonable Cloud Practices with Java on AWS
session Java User Group (JUG) Vienna vienna 4 Dec 2023
https://www.meetup.com/java-vienna/events/296033339/
airhacks.live: AWS Security, Authentication and Authorization for Java [online event]
airhacks.live workshop 7 Dec 2023
https://airhacks.live
airhacks.live: Serverless Java Patterns and Best Practices on AWS [online event]
airhacks.live workshop 14 Dec 2023
https://airhacks.live

M2M Authentication, Quarkus and CraC, OIDC--or Questions for the 116th airhacks.tv

2023-11-06T12:38:28Z

Questions and topics for the 116th airhacks.tv:

conference news and updates
Quarkus and CraC (from: https://discord.gg/airhacks by jarry_dk)
Machine to Machine authentication on AWS
Access to external resources to AWS
Documentation with antora
Time machine: "JavaScript and MVVM, cross concern and technical BCE, DTOs and REST, unit testing servers, service to service testing, sending messages to a phone,"

Any questions left? Ask now: gist.github.com/AdamBien/31e84638e4a97a3ebb4074dc3b8118bb and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds or less with Java

Money API, Virtual Threads, Jakarta Data, Lambdas, Dynamo--115th airhacks.tv

2023-11-06T12:24:49Z

The 2023.10 / 115th edition of airhacks.tv with the following topics:

"standard Money API, Authentication, Authorization and JWTs, Virtual Threads and JPA, AWS Lambda and Connection Pooling, thoughts on Jakarta Data, ULIDs, cloud-native, serverless, databases":

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

Instrumenting, Probing and Asynchronous Profiling--airhacks.fm podcast

2023-11-05T14:54:54Z

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

The #267 airhacks.fm episode with Ingo Kegel (@IngoKegel) about:

the building blocks of a profiler and the pros and cons of instrumenting and sampling profilers

is available for download.

Java, Microsoft and Software Development with AI--airhacks.fm podcast

2023-10-31T03:26:59Z

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

The #266 airhacks.fm episode with Brian Benz (@bbenz)) about:

Java, Jakarta EE on Azure, Kubernetes operators on Azure, open source at Microsoft, GitHub Copilot Chat and software development with AI.

is available for download.

How JProfiler Happened--airhacks.fm podcast

2023-10-22T10:59:12Z

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

The #265 airhacks.fm episode with Ingo Kegel (@IngoKegel) about:

Java profilers, design decisions, developer experience and the creation of JProfiler

is available for download.

Profilers, Probing, Sampling and Instrumentation--airhacks.fm podcast

2023-10-15T14:00:19Z

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

The #264 airhacks.fm episode with Jaroslav Bachorik (@yardus) about:

probing, instrumentation, sampling, state of the art profilers and high performance messaging

is available for download.

How JAX-RS Happened--airhacks.fm podcast

2023-10-08T13:15:02Z

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

The #263 airhacks.fm episode with Paul Sandoz (@paulsandoz) about:

remote control of manufacturing plants with a cellular phone, developing a VR headset, graphics programming, SOAP, XML and JAX-RS

is available for download.

Devoxx Belgium: Java Patterns and Practices for Serverless Applications

2023-10-06T03:43:47Z

After 6 years break, I delivered a talk at Devoxx Belgium with the proposed abstract:

"Is it possible to migrate Java EE / J2EE monoliths ...to AWS Lambda? How to package an AWS Lambda application efficiently? Relying on Java's superpower: how to reuse IaC / CDK constructs with Java? How to create a self-provisioned serverless application with Java? What is the granularity of a function? What is the difference between a function and a microservice? Are synchronous functions an anti-pattern? How to efficiently structure Java applications' business and IaC code. I will discuss "working" practices and patterns with code and live deployments in this code-focused session. Attendees' questions are highly appreciated!"

...as always the abstract was just a suggestion and I also enjoyed the questions and discussions before (we had a short pre-show :-)), during and after the talk.

The talk was recorded and is available on:

All examples were based on: https://github.com/AdamBien/aws-quarkus-lambda-cdk-plain

Money, Authentication, Formatters, Jakarta Data, Serverless, ULIDs, Events--Or Questions for 115th airhacks.tv

2023-10-02T08:27:01Z

Questions and topics for the 115th airhacks.tv live streamin show:

The airhacks.tv time travelling: 15th airhacks.tv (8 years ago)
A standard Money and Currency implementation
Authorization and authentication with Jakarta EE and Microprofile
Virtual Threads and JPA
Java Formatters
Jakarta Data and BCE
PostgreSQL with AWS Lambdas
Composite keys and REST API
UUIDs vs. ULIDs
DocumentDB vs. DynamoDB vs. AuroraV2
SQS vs. SNS vs. Kinesis vs. EventBridge

Any questions left? Ask now: https://gist.github.com/AdamBien/132643f891e116fe0d0e0722f63fb7d5 and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds or less with Java

The IBM Certified Presenter and XML Evangelist--airhacks.fm podcast

2023-10-02T02:31:50Z

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

The #262 airhacks.fm episode with Brian Benz (@bbenz) about:

Java, XML, and the mysterious OpenTech department at Microsoft

is available for download.

JCON Europe Cologne 2023: "Serverless" Is What J2EE Was Meant To Be

2023-09-26T11:11:33Z

Live from Jcon Europe Cologne 2023, discussing, cloud native, cloud costs, "scale to zero", green IT, productivity and the relation between application servers ...and serverless architectures:

JAX-RS, OAuth, OpenID Connect (OIDC), Authentication, Authorization and Quarkus--airhacks.fm podcast

2023-09-24T16:57:30Z

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

The #261 airhacks.fm episode with Sergey Beryozkin (@sberyozkin) about:

the beginnings of JAX-RS, OAuth, OIDC, Authentication, Authorization and Quarkus

is available for download.

Autumn 2023: Upcoming Java Conferences, Java User Group Events and Online Workshops

2023-09-22T03:03:42Z

Silesia JUG: Serverless Java Patterns, Hacks and Workarounds
Silesia JUG session Silesia JUG Offline Only / Katowice 28 Sep 2023
https://www.meetup.com/silesia-jug/events/296123881/
Devoxx Conference: Java Patterns and Practices for Serverless Applications
Conference Session Devoxx Conference Antwerp Belgium 5 Oct 2023
https://devoxx.be/2023-schedule/speaker-details/?id=45184
JUG Oberpfalz: Java Hater’s Meetup
JUG Session JUG Oberpfalz Weiden 11 Oct 2023
https://www.meetup.com/jug-oberpfalz/events/289601193/
EclipseCon: Building Future-Proof Jakarta EE Applications On-Premise and In The Clouds Adam Bien
Community Day Session EclipseCon Ludwigsburg 16 Oct 2023
https://www.eclipsecon.org/2023/java-community-day
BaselOne: Lean, Fast, Productive - Self-Provisioned Serverless Java Runtimes on AWS
Workshop BaselOne Basel 18 Oct 2023
https://baselone.ch/speech.html?id=3B2B1C42-AF24-44DE-8EDF-B8E993D6107B
BaselOne: Modern Java in the Cloud or OnPrem
Keynote BaselOne Basel 18 Oct 2023
https://baselone.ch/speech.html?id=3B2B1C42-AF24-44DE-8EDF-B8E993D6107B
geecon: Thinking in Serverless Java (Code)
Session geecon Prague 20 Oct 2023
https://2023.geecon.cz/speakers/?id=861#bio
infoshare DEV: Katowice: Building Self-Provisioned Runtimes with Serverless Java on AWS
Workshop infoshare DEV Katowice 24 Oct 2023
https://dev.infoshare.pl/agenda/#nav-katowice-tab
infoshare DEV: Katowice: Why Serverless Enterprise Java Rocks
Session infoshare DEV Katowice 24 Oct 2023
https://dev.infoshare.pl/agenda/#nav-katowice-tab
JDD: The Best of Java Shorts Show--100 Snippets in 45 Minutes
Session JDD Krakow 25 Oct 2023
https://jdd.org.pl/bio_2023/#id=53115
infoshare DEV: Gdynia: Building Self-Provisioned Runtimes with Serverless Java on AWS
Workshop infoshare DEV Gdynia 26 Oct 2023
https://dev.infoshare.pl/prelegenci/#nav-gdynia
infoshare DEV: Gdynia: Why Serverless Enterprise Java Rocks
Session infoshare DEV Gdynia 26 Oct 2023
https://dev.infoshare.pl/prelegenci/#nav-gdynia
airhacks.live: AWS Security, Authentication and Authorization for Java [online event]
airhacks.live workshop 7 Dec 2023
https://airhacks.live
airhacks.live: Serverless Java Patterns and Best Practices on AWS [online event]
airhacks.live workshop 14 Dec 2023
https://airhacks.live

How BTrace Happened--airhacks.fm podcast

2023-09-17T18:19:10Z

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

The #260 airhacks.fm episode with Jaroslav Bachorik (@yardus) about:

Java, NetBeans, Profilers, DTrace and BTrace

is available for download.

How Boundary Control Entity, UML and Components Happened--airhacks.fm podcast

2023-09-14T09:41:50Z

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

The #259 airhacks.fm episode with Ivar Jacobson (@ivarjacobson) about:

Component Based Development, Objectory, UML, Rational Unified Process, agile, artificial intelligence and intelligent assistant and how Boundary Control Entity (BCE) happened

is available for download.

Cloud Native CI/CD, Trunk Based Development, Sockets, Cloud Test Stacks, Test Data, XA, Handling Exceptions--Or 114th airhacks.tv

2023-09-04T11:58:56Z

Questions and topics for the 114th airhacks.tv live stream Questions and Answers:

Implementing Sockets and Java
What does your test stack look like on AWS?
Does it make any difference cloud vs. on premises?
What are you using for load testing?
What are you using for end-to-end tests where you simulate users/clients?
Do you have experience with Grafana k6 and if yes, what is your experience?
And where do you run client simulators, on AWS EC2 instances or on a runner/agent in your pipeline?
What is your strategy for setting up test data for end-to-end tests?
How do you reset data before you run next test for end-to-end tests? Would you recommend creating VM snapshots and how to do that?
Best way to integrate a non xa resource into container managed transactions of stateless EJBs (wildfly)
CI/CD on AWS example
Experiences with trunk based development
Handling persistence (JPA) exceptions
RequestScope, long running transactions and JWT

Any questions left? Ask now: https://gist.github.com/AdamBien/0088a3d6964ebdae9b59693400747106 and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds or less with Java

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

How FlywayDB Happened--airhacks.fm Podcast

2023-09-03T17:08:45Z

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

The #258 airhacks.fm episode with Axel Fontaine (@axelfontaine) about:

Continous Delivery, database migrations, the evolution of FlywayDB and the open-source Business

is available for download.

Why MicroStream is Faster--airhacks.fm podcast

2023-08-27T12:59:36Z

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

The #257 airhacks.fm episode with Florian Habermann (@FHHabermann) about:

A conversation with Florian Habermann about Object-relation impedance mismatch, limitations of the Java serialization, and MicroStream

is available for download.

Virtual Threads, Parallel Streams, Concurrency and Parallelism--airhacks.fm podcast

2023-08-20T11:50:29Z

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

The #256 airhacks.fm episode with Heinz Kabutz (@heinzkabutz) about:

Project Loom, Virtual Threads from user perspective, Parallel Streams, ForkJoinPool, Concurrency and Parallelism

is available for download.

A Deeper Dive Into Debugging--airhacks.fm podcast

2023-08-14T17:45:15Z

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

The #255 airhacks.fm episode with Shai Almog (@debugagent) about:

logpoints, watchpoints, tracepoints, breakpoints, time travelling, or effective debugging, logging, testing and clouds

is available for download.

How JavaPolis and Devoxx Happened--airhacks.fm podcast

2023-08-08T13:16:02Z

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

The #254 airhacks.fm episode with Stephan Janssen (@Stephan007) about:

continuous learning for fun, JavaPolis, Devoxx, AI and Java

is available for download.

Real World BCE, Modularization, Jigsaw, BPMN, Minio Integration, Schema Evolution--Or 113th airhacks.tv

2023-08-07T09:14:37Z

Questions and Topics for the 113th airhacks.tv live stream Q and A:

What are you using for modularization of your monolithic Java backend? by @kriehzoo
What is your experience with project jigsaw, do you use it for your projects? by @kriehzoo
Real world BCE article
Kogito vs. Camunda by @dempile
Minio integration ideas by @dempile
"time travelling / episode 13: JPA and schema evolution, multi tenancy, deltaspike, picketlink, JSR-375, onion architecture, RPC communication, zero downtime, JDBC configuration, singleton JPA Entity"

Any questions left? Ask now: gist.github.com/AdamBien/d6c474fe8869b2c278ab6dbd4d03afaf and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds or less with Java

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

Java on Azure and a Nailless Java Champion--airhacks.fm podcast

2023-07-30T11:00:15Z

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

The #253 airhacks.fm episode with Antonio Goncalves (@agoncal) about:

run Java on Azure Container Instances, Azure Container Apps, Azure Container Service, Azure VM, Web-App for Container, Azure Bicep, Java EE, Jakarta EE and the relation to serverless, Java, GraalVM, Microsoft and Quarkus

is available for download.

BDD: Bug Driven Development vs. Continuous Observability--airhacks.fm podcast

2023-07-23T15:17:54Z

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

The #252 airhacks.fm episode with Roni Dover (@doppleware) about:

software, complexity, architecture, development trends, polyglot programming, continuous feedback and digma.ai

is available for download.

From CORBA, over RPC to REST ...and Back?--airhacks.fm podcast

2023-07-16T05:12:40Z

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

The #251 airhacks.fm episode with Sergey Beryozkin (@sberyozkin) about:

CORBA, RPC, SOAP, SOA, IONA, Orbix and Atrix, Apache CXF, Apache Tika and Quarkus

is available for download.

FPGAs, GPUs or Data Science with Java--airhacks.fm podcast

2023-07-10T15:03:48Z

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

The #250 airhacks.fm episode with Juan Fumero (@snatverk) about:

FPGA and GPU accelarated Java, TornadoVM and machine learning with Java

is available for download.

A Freakonomic Guide to Jakarta EE with a Guardian--airhacks.fm podcast

2023-07-04T12:46:10Z

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

The #249 airhacks.fm episode with Reza Rahman (@reza_rahman) about:

Caucho Resin, the economic take on standards and Jakarta EE and Java on Azure

is available for download.

Break Your Limits and the Java Challengers--airhacks.fm podcast

2023-06-25T07:13:37Z

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

The #248 airhacks.fm episode with Rafael del Nero (@RafaDelNero) about:

breaking your limits, creating the Java Challengers, and enjoying Java

is available for download.

A Gentle Introduction to Debugging--airhacks.fm podcast

2023-06-21T11:47:30Z

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

The #247 airhacks.fm episode with Shai Almog (@debugagent) about:

various observability and debugging tools, time travelling debuggers and various breakpoint types

is available for download.

How Log4j, SLF4j, Jakarta Commons Logging, Logback and Reload4j Happened--airhacks.fm podcast

2023-06-11T12:12:20Z

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

The #246 airhacks.fm episode with Ceki Guelcue (@ceki) about:

the history of logging in Java (Log4j 1 and 2, SLF4j, Apache / Jakarta Commons Logging, Logback, reload4j)

is available for download.

From OpenShift to Azure App Service--airhacks.fm podcast

2023-06-08T08:43:33Z

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

The #245 airhacks.fm episode with James Falkner (@schtool) about:

Java on OpenShift, the ideal RedHat stack, Quarkus, JBossEAP and JBoss EAP on Azure App Service

is available for download.

Java EE 6: Migration: From Application Servers over MicroProfile to Serverless AWS Lambda

2023-06-03T03:56:38Z

At the JDD 2012 conference, more than ten years ago I delivered a session a with the title: Java EE: The Future Is Now, But Is Not Evenly Distributed Yet.

Ten years later, in 2022, I was invited again and delivered a session with the title "Java EE 6 and the Future Is Now, and now we got.. clouds", in which I discussed a migration path to a serverless architecture:

During the talk, I didn't managed to migrate the application to modern Java and clouds, but promised to record a screencast, which is also available:

Monoliths, Microservices, Auth, API Gateways, Schedulers-111th airhacks.tv

2023-06-01T11:00:48Z

The 2023.6 / 111th edition of airhacks.tv with the following topics:

"Microservices vs. Monoliths, Schedulers, Lightweight vs. Heavyweight, Time Derived Properties, Groovy, JavaScript":

...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.

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

Any questions left? Ask now: gist.github.com/AdamBien/62791e98ed40d1d2b13801e3e717a949 and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds or less with Java

The Reset Boy--airhacks.fm podcast

2023-05-28T16:47:08Z

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

The #244 airhacks.fm episode with Vinicius Senger (@vsenger) about:

Sun Microsystem memories, Java, Quarkus, AWS cloud, The Developer's Conference and the Java Academy

is available for download.

Microservices vs. Monoliths, Schedulers, Lightweight vs. Heavyweight, Time Derived Properties, Groovy, JavaScript--Or 111th airhacks.tv

2023-05-27T09:00:52Z

Questions and Topics for the 111th airhacks.tv live stream Q and A are ready:

Microservices vs. Monoliths
Best way to schedule a repeated task in an application scoped cdi bean
Airhacks Time Machine
The Airhacks Time Machine:
Microservices and Java EE, Lightweight vs. Heavyweight, OSGi, time derived properties, JRebel, security between microservices, debug docker apps, batch processing, Groovy, JavaScript, Java, websockets and scalability, seceond level cache.

Any questions left? Ask now: gist.github.com/AdamBien/a97ce552e3f784721dda8054ab1871f2 and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds or less with Java

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.

Also checkout: the airhacks discord server

Understanding and Practising Quarkus--an airhacks.fm podcast

2023-05-21T18:37:08Z

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

The #243 airhacks.fm episode with Antonio Goncalves (@agoncal) about:

J2EE, Jakarta EE and MicroProfile stability and portability. Azure, Java, IaC and serverless.

is available for download.

2023 Spring / Summer: Upcoming Conferences, Streams and Workshops

2023-05-19T08:54:48Z

The 111th airhacks.tv will take place one week earlier, on may 27th (instead of June 5th). File your questions now: gist.github.com/AdamBien/a97ce552e3f784721dda8054ab1871f2

See you at these upcoming conferences and workshops:

Code Europe Conference: Dissecting Serverless Java on AWS
conference session Code Europe Conference Cracow 23 May 2023
https://www.codeeurope.pl/en/agenda
InfoShare: The Java Shorts Animation Show: 100 Snippets in 40 Minutes
conference session InfoShare Gdansk 24 May 2023
https://infoshare.pl
Code Europe Conference: Keynote: Dissecting Serverless Java on AWS
keynote conference session Code Europe Conference Warsaw 25 May 2023
https://www.codeeurope.pl/en/agenda
InfoShare: The Future of Java in the Cloud and on Premises
conference session InfoShare Gdansk 25 May 2023
https://infoshare.pl
online: AWS Java Bootstrap [online event]
airhacks.live workshops 15 Jun 2023
https://workshops.adam-bien.com/aws-java-bootstrap.htm
Jcon Europe: "Serverless" Is What J2EE Was Meant To Be
conference session Jcon Europe Cologne 20 Jun 2023
https://2023.europe.jcon.one
online: Cost Driven Architectures with Java on AWS [online event]
airhacks.live workshops 22 Jun 2023
https://workshops.adam-bien.com/aws-cost-driven-architectures.htm

Java FX, Codename One, Swing, Flutter and a Bit Android--airhacks.fm podcast

2023-05-14T17:25:53Z

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

The #242 airhacks.fm episode with Shai Almog (@debugagent) about:

the challenges of marketing and the architectural comparison of Java FX, Codename One, Swing, Flutter and Android

is available for download.

Simplicity is a Good Incentive--airhacks.fm podcast

2023-05-07T17:58:57Z

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

The #241 airhacks.fm episode with Ceki Gülcü (@ceki) about:

joy of programming, simplicity, network protocols, tor network, and the beginnings of Log4j

is available for download.

Reactive programming, 12factors, gRPC,SPAs, openJDK choices--Questions for 110th airhacks.tv

2023-05-01T07:34:04Z

Questions and Topics for the 110th airhacks.tv live stream Q and A are ready:

Follow up: my interview questions
Programmatic and portable JAX-RS endpoint registration
Time machine, the 10th episode: "Java EE Favourites, SPA technologies, complex JSON strategies, CDI scope management"
Are shared deployments back?
Are there any reason for reactive programming left?
About OpenJ9 JVM, or which JDK to pick
Jakarta gRPC, Google gRPC
Do application servers make sense?
Thoughts on Ansible deployments
Thoughts on 12 factors and cloud native

Any questions left? Ask now: gist.github.com/AdamBien/6147ea9d4d354b5cae3cb3726b1db0de and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds or less with Java

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

Serverless Java (17) on AWS--airhacks.fm podcast

2023-04-29T05:05:03Z

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

The #240 airhacks.fm episode with Maximilian Schellhorn (@maschnetwork ) about:

cloud and on-premise architectures, switching back from Kotlin to Java 17, Fullstack Serverless Java Architectures on AWS and AWS Lambda with Java 17 with SnapStart

is available for download.

Low-Code, No-Code with Java--airhacks.fm podcast

2023-04-26T02:14:59Z

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

The #239 airhacks.fm episode with Richard Fichtner (@richardfichtner) about:

writing low-code / no-code products in Java, Java startups, Low Code / No Code Java IDEs, Java frontends, Vaadin and the JCON conference

is available for download.

The History of Mobile Java and Codename One--airhacks.fm podcast

2023-04-16T17:13:43Z

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

The #238 airhacks.fm episode with Shai Almog (@debugagent) about:

LWUIT, i-mode, Java FX Script, Wireless Toolkit, J2ME and Codename One

is available for download.

Hooked on Java--airhacks.fm podcast

2023-04-06T12:15:45Z

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

The #237 airhacks.fm episode with Logan Kulinski (@lbkulinski) about:

Java passion, Java in the clouds, smart charging vehicles, and new Java language features

is available for download.

Serverless Enterprise Java, TDD, Resilience, API Gateways, Optimistic Locking--Questions for 109th airhacks.tv

2023-04-03T07:40:41Z

Questions and topics for the 109th / 2023.4 airhacks.tv:

Test Driven Development
Maven vs. Gradle
Serverless Enterprise Java

Time machine 100 episodes ago 8th airhacks.tv episode: 31st, October, 2014

resilience and discovery, OData vs. JSON, Lazy OneToMany and JAX-RS serialization problems, simple reporting solutions, API Gateways and Java EE, centralized API management solutions, enum serialization options, row-level authorization and Java EE

Backlog / timemachine 101 episodes ago 9th airhacks.tv episode: 30th, November, 2014

batch processing over ejb scheduler, access to user-specific database for caller/user?, you can deploy Spring on any container, managing deployed microservices (status, healthchecks, restarting), local and production Docker setup, JSF and JavaScript frameworks, javax.persistence.OptimisticLockException recovery automation, session storage and Jakarta EE

Any questions left? Ask now: https://gist.github.com/AdamBien/ab8b773336a30dd543af03b62c4a2a0d and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds or less with Java

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

Naming Is Hard--Not With The VarVar Pattern

2023-04-01T12:21:28Z

In Java naming is not hard, you can conveniently name everything var:

class Var {
    String var;
    
    public Var() {
        this.var = "duke is varvar!";
    }
    
    record VAR(Var var){
        public String getVar(){
        return this.var.var;
        }
    }
    
    public static void main(String... args) {
        var var = new VAR(new Var());
        System.out.println(var.getVar());
    }
}

Pommes, PaaS and Java on AWS--airhacks.fm podcast

2023-04-01T06:29:38Z

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

The #236 airhacks.fm episode with Sascha Moellering (@sascha242) about:

game development, a PaaS successtory, low latency Java, and Java on AWS

is available for download.

Debugging on Fire--airhacks.fm podcast

2023-03-26T13:25:27Z

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

The #235 airhacks.fm episode with Shai Almog (@debugagent) about:

programming flight simulators, Java consultancy, and embedded Java

is available for download.

How JPA Buddy Happened--airhacks.fm podcast

2023-03-19T17:59:15Z

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

The #234 airhacks.fm episode with Aleksey Stukalov (@AlekseyStukalov) about:

about low code Java frameworks like: CUBA and JMIX, design principles, DTOs and JPA Buddy

is available for download.

Early 2023 Java / Clouds Events, JUGs, Workshops and Conferences

2023-03-13T10:46:49Z

Gedoplan Remote Session: Standards, J2EE, Java EE, Jakarta EE, MicroProfile ....und nun was? [online event]
"Expertenkreis Java" remote session 16 Mar 2023
https://gedoplan.de/expertenkreisjava/
CODE Frenzy Conference: Lean, Fast, Productive - IaC for Serverless Java on AWS [online event]
CODE Frenzy Virtual Conference 29 Mar 2023
https://codefrenzy.pl/bio.html#id=51630
Cloud Builders Conference: Сloud Builders: Java Patterns and Practices for Serverless Applications [online event]
Cloud Builders: Java Virtual Conference 30 Mar 2023
https://www.cloud-builders.tech/#agenda-1
JUG Zurich: Wenn Cloud, dann richtig... und mit Java
JUG Zurich session (in-person) JUG Zurich Gleisarena FFHS Campus Zürich 30 Mar 2023
https://www.jug.ch/html/events/2023/cloud_mit_java.html
JUG Zurich: To Cloud Or Not To Cloud What Is The Architectural Difference?
Digital Crafts Day / Conference (in-person) JUG Zurich Ostbayerische Technische Hochschule Amberg-Weiden 28 Apr 2023
https://dc-nordoberpfalz.de/digital-crafts-day.php
online: AWS Java Bootstrap [online event]
airhacks.live workshops 15 Jun 2023
https://workshops.adam-bien.com/aws-java-bootstrap.htm
online: Cost Driven Architectures with Java on AWS [online event]
airhacks.live workshops 22 Jun 2023
https://workshops.adam-bien.com/aws-cost-driven-architectures.htm

Events are also announced at meetup.com/airhacks/ and discord.gg/airhacks

How Apache Roller Happened--airhacks.fm podcast

2023-03-12T10:46:18Z

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

The #233 airhacks.fm episode with Dave Johnson (@snoopdave) about:

about GRASS, early J2EE, Java, Sun Microsystems and how Apache Roller blogging software was created

is available for download.

Leaving Clouds, Java LTS, CQRS, TDD, JAX-RS and AutoCloseable, Lambda Limitations, Dependencies and Updates-108th airhacks.tv

2023-03-07T18:13:05Z

The 2023.3 / 108th edition of airhacks.tv with the following topics:

"Flutter / Dart opinions, splitting read / writes, Leaving Clouds, Http Client, Liskov Principle, JAX-RS Response and AutoCloseable, monolithic AWS Lambda limitations, Update Strategies and Quarkus":

...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.

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

Any questions left? Ask now: gist.github.com/AdamBien/ab8b773336a30dd543af03b62c4a2a0d and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds or less with Java: youtube.com/@bienadam/shorts

Flutter, Leaving Clouds, Http Client, Liskov Principle, AutoCloseable, Update Strategies--Questions for 108th airhacks.tv

2023-03-06T12:08:57Z

Questions and topics for the 108th airhacks.tv:

LTS clarifications: There seems to be a widespread misconception that only LTS releases are suitable for production. That non-LTS releases are experimental, unstable, or otherwise unsuitable. [from discord.gg/airhacks]
Dart / Flutter opinions
Leaving clouds? Thoughts on article: world.hey.com/dhh/why-we-re-leaving-the-cloud-654b47e0
HttpClient and Response as JSON
What is "Liskov substitution principle"
Why JAX-RS Response is AutoCloseable?
The name of the current method
Update strategies and Quarkus

Any questions left? Ask now: gist.github.com/AdamBien/3eba2c0cee3c6e2722cd6c3d440d9bef and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds

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

Kubernetes Was Never Supposed To Leak--airhacks.fm podcast

2023-03-05T15:38:52Z

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

The #232 airhacks.fm episode with Kelsey Hightower (@kelseyhightower) about:

learning programming, configuration management, shell scripting, Java, GO, clouds, simplicity and kubernetes

is available for download.

Chicago Java User Group: Structuring Java Applications CLI, Monoliths, Microservices and Serverless

2023-03-02T10:17:40Z

A session from Chicago Java Users Group, Feb 1st, 2023, with the following abstract:

In this CJUG session, I will create a Java service from scratch, run and test it locally, in container environments, and as AWS Lambda. Same code base, minimal code, no YAML, and the same APIs on different runtimes. I will focus on structure, maintainability, and the "no-dependencies" approach. Your questions are highly appreciated, and I will answer them in real time.

...is available:

Live From "The Software Architecture Gathering" Conference: Saving Costs with Pragmatic Serverless Java Architectures

2023-02-27T08:03:26Z

A session from "The Software Architecture Gathering — Digital 2022", November 14th 2022, with the following abstract:

"Java is fast, productive, comes with excellent tooling, and runs well on next-generation cloud-native runtimes. I would like to discuss unconventional and pragmatic serverless Java architectures with lots of code, live deployments, and measurements in this interactive session. Your questions are, as always, highly welcome and will be answered in real-time."

...is available:

Thinking About Decentralized Web--airhacks.fm podcast

2023-02-26T15:31:52Z

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

The #231 airhacks.fm episode with Andrew Lee Rubinger (@alrubinger) about:

decentralized web use cases and killer apps, standards, similarities between J2EE, Java EE, Jakarta EE and TBD, Web 5

is available for download.

A Human-Centric, OpenSource Workflow Engine on Jakarta EE--airhacks.fm podcast

2023-02-18T06:09:26Z

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

The #230 airhacks.fm episode with Ralph Soika (@rsoika) about:

building an open source (www.imixs.org), human-centric, workflow engine on Jakarta EE, kubernetes on-premise and in the clouds, clouds and portability.

is available for download.

Highly Structured Lifehacks with Heinz--airhacks.fm podcast

2023-02-12T16:00:06Z

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

The #229 airhacks.fm episode with Heinz Kabutz (@heinzkabutz) about:

From "lost in the woods", over JDK contributions and Java features to Garbage Collectors and weak references.

is available for download.

Cloud Native vs On-Premise, Thin-, Fat-, Jars, Hot Redeployment, Strategies for Multi Tenancy, Horizontal vs. Deep Learning--107th airhacks.tv

2023-02-07T18:41:48Z

The 2023.2 / 107th edition of airhacks.tv with the following topics:

"Dead OneToMany, Docker, Thin-, Fat-, Jars, Hot Redeployment and the clouds, Strategies for Multi Tenancy, Horizontal vs. Deep Learning, what is cloud native?, cloud vs. on--premise architectures":

...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.

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

Any questions left? Ask now: gist.github.com/AdamBien/3eba2c0cee3c6e2722cd6c3d440d9bef and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds with Java

Dead OneToMany, Docker, Thin-, Fat-, Jars, Hot Redeployment, Strategies for Multi Tenancy, Horizontal vs. Deep Learning--107th airhacks.tv

2023-02-06T12:40:08Z

The questions and topics for the second / 107th airhacks.tv in 2023:

Time travel: topics from 100 episodes back (October 2014): SessionScoped, Stateful, RequestScoped, avoiding OneToMany JPA, stateless session beans
Thoughts on docker, layered images, Thin Jars, Fat Jars, Jakarta EE server
Challenges and strategies for application hot redeployment
Strategies for multi tenant applications
Thoughts on learning: horizontal knowledge vs. deep dive

Any questions left? Ask now: gist.github.com/AdamBien/d5e03decb40c390ff44c1a41de52657c and get the answers at the next airhacks.tv. Some questions are also answered with a short video: 60 seconds

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

Star Trek, Star Wars, Transactions, SQL, NoSQL and almost Streaming--airhacks.fm podcast

2023-02-05T17:34:10Z

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

The #228 airhacks.fm episode with Mary Grygleski (@mgrygles) about:

Star Trek, Star Wars, transactional file systems, Java, Java EE, SQL, NoSQL and almost streaming

is available for download.

From Jakarta EE ManagedExecutorService to MicroProfile ManagedExecutor

2023-01-30T10:26:24Z

In Java EE / Jakarta EE environments a ManagedExecutorService instance is injectable via the @Resource annotation:


import javax.enterprise.concurrent.ManagedExecutorService;
public class EventSource {

    
    @Resource
    ManagedExecutorService threadPool;
(...)
}

[code from: Java EE 8: Sending asynchronous CDI 2.0 events with ManagedExecutorService]

In pure MicroProfile environments these API is not available but can be replaced with ManagedExecutor from MicroProfile Context Propagation:


import org.eclipse.microprofile.context.ManagedExecutor;
public class EventSource {

    @Inject
    ManagedExecutor executor;
}

Both injected instances are inheriting from ExecutorService. Migration from javax.enterprise.concurrent.ManagedExecutorService to org.eclipse.microprofile.context.ManagedExecutor should be matter of replacing @Resource with @Inject, renaming the injected classes and fixing the imports.

From Amiga, Java ME, JavaFX over Clouds to Decentralized Package Network--airhacks.fm podcast

2023-01-29T20:32:25Z

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

The #227 airhacks.fm episode with Karol Harezlak (@karolh2000) about:

Amiga love, assembly, C, Java, Java ME, Java FX, NetBeans, Clouds and a Decentralized Package Network

is available for download.

Supercharging the GraalVM--airhacks.fm podcast

2023-01-22T20:42:30Z

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

The #226 airhacks.fm episode with Аlina Yurenko (@alina_yurenko) about:

GraalVM tooling, features, configuration and use cases

is available for download.

Obsessed With Performance--airhacks.fm podcast

2023-01-15T17:14:10Z

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

The #225 airhacks.fm episode with Jakob Jenkov (@jjenkov) about:

Java, performance, clouds and complexity

is available for download.

What does it mean to be a professional programmer?--airhacks.fm podcast

2023-01-08T18:11:59Z

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

The #224 airhacks.fm episode with Ken Fogel (@omniprof) about:

capturing requirements, writing maintainable software, unit and system testing

is available for download.

Optional, Java Modules, Kotlin, Rust, Lambda, VS Code, Java EE, PlayFramework--106th airhacks.tv

2023-01-04T04:58:48Z

The 2023.1 / 106th edition of airhacks.tv with the following topics:

"Lambda Extensions, token cache with DynamoDB, Java EE vs. PlayFramework popularity, Kotlin, Rust, Optional use cases, Java Modules":

...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/d5e03decb40c390ff44c1a41de52657c and get the answers at the next airhacks.tv.

Some questions are also answered with a short video: one minute with...

News: the airhacks discord server is available: https://discord.gg/BpMGmxvRDb

Play, Java EE, AWS Lambda Tokens, 2022 Observations--106th airhacks.tv

2023-01-02T10:03:07Z

The questions and topics for the very first airhacks.tv in 2023:

Time travel: 100 episodes ago: Play Framework vs. Java EE, reading a network file, ID generation, stateful calculations, JSF and Bootstrap, structuring huge applications, mixing storage and transfer concerns (...)
2022 observations
Strategies for updating tokens of AWS Lambda's
the state of airhacks industries :-)

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/d60f7b91dc0e897915c083de35edef72 and get the answers at the next airhacks.tv.

Some questions are also answered with a short (video): one minute with... on www.youtube.com/bienadam

How Grizzly and Atmosphere Happened--airhacks.fm podcast

2022-12-31T14:31:39Z

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

The #223 airhacks.fm episode with Jeanfrancois Arcand (@jfarcand) about:

real time communication with Java, Grizzly and Atmosphere projects, Sun Microsystems, AI, Environmental, social, and corporate governance (ESG), and the Go programming language

is available for download.

Xmas with the Brazilian JavaMan--airhacks.fm podcast

2022-12-23T12:31:37Z

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

The #222 airhacks.fm episode with Bruno Souza (@brjavaman) about:

Xmas trees, Java and automation, public and private cloud and the Golden Circle

is available for download.

What is foojay.io?--airhacks.fm podcast

2022-12-16T15:06:49Z

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

The #221 airhacks.fm episode with Geertjan Wielenga (@GeertjanW) about:

Friends of OpenJDK (foojay), Java.net 2.0, Wikipedia for Java and Azul

is available for download.

To MicroProfile, Or Not To MicroProfile?--airhacks.fm podcast

2022-12-11T17:22:53Z

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

The #220 airhacks.fm episode with Romain Manni-Bucau (@rmannibucau) about:

about the advantages and shortcomings of MicroProfile, building a custom MicroProfile-based platform, and Kubernetes' portability

is available for download.

CraC, SnapStart, AWS Lambda, REST, Change Data Capture in the Clouds, GraalVM--105th airhacks.tv

2022-12-07T04:14:28Z

The December, 105th edition of airhacks.tv with the following topics:

"CraC, SnapStart, AWS Lambda, structuring micro services, REST or not, Change Data Capture in the clouds, CraC vs. GraalVM, managing certificates, monolithic lambda deployments, asynchronous lambdas packaging":

...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/d60f7b91dc0e897915c083de35edef72 and get the answers at the next airhacks.tv.

Some questions are also answered with a short video: one minute with...

Stateful Microservices, BCE, REST, CraC, SnapStart, Serverless--105th airhacks.tv

2022-12-05T12:22:27Z

The questions and topics for the very last airhacks.tv in 2022:

100 episodes ago: stateful microservices, BCE design, how to learn Java, .NET vs. Java EE, REST, Layers, micro services, GoF and Java EE (...)
CraC / SnapStart and Monolithic Lambdas
Opinion: the state of Java documentation
AWS Lambda and REST Endpoints
Non AWS Endpoints
Packaging serverless applications

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/dc9b58e2c5e4a3232cb8df8fa8ba7fc7 and get the answers at the next airhacks.tv.

Some questions are also answered with a short video: one minute with...

End of Year: Java and Cloud Sessions and Workshops

2022-12-03T16:33:53Z

airhacks.tv interactive live stream: #105th airhacks.tv Questions and Answers [online event]
airhacks.tv Questions and Answers 5 Dec 2022
http://youtube.com/bienadam
JakartaOne Live session: Ideas for Lean, Maintainable and Productive Jakarta EE / MicroProfile Projects [online event]
JakartaOne Live 6 Dec 2022
https://www.meetup.com/airhacks/events/290124264
airhacks.live workshop: Serverless Event-Driven Architectures with Serverless Java on AWS [online event]
airhacks.live workshops 8 Dec 2022
https://airhacks.live
airhacks.live workshop: Serverless Persistence for Serverless Java on AWS [online event]
airhacks.live workshops 15 Dec 2022
https://airhacks.live

"CraC Applied":SnapStart Java AWS Lambda Cold Start Acceleration in Action

2022-11-30T13:17:04Z

In this screencast I deployed a MicroProfile / Quarkus application as AWS Lambda (github.com/AdamBien/aws-quarkus-lambda-cdk-plain) using CDK and compared the cold- with the "snap"-start.

SnapStart / CraC was also covered at the: airhacks.fm podcast episode with the title: "Java, CraC and Reducing Cold Start Duration with AWS Lambda SnapStart"

Java, CraC and Reducing Cold Start Duration with AWS Lambda SnapStart--airhacks.fm podcast

2022-11-29T18:41:26Z

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

The #219 airhacks.fm episode with Mark Sailes (@MarkSailes3) about:

Java, Coordinated Restore at Checkpoint (CraC), the serverless Java mindset and reducing Cold Start Duration with AWS Lambda SnapStart

is available for download.

How OmniFish Happened--airhacks.fm podcast

2022-11-28T15:50:25Z

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

The #218 airhacks.fm episode with David Matejcek (@dmatej) about:

GlassFish, Payara, open source contributions and raise of the OmniFish

is available for download.

ACID, Base, XA and Long Running Actions--airhacks.fm podcast

2022-11-20T18:01:05Z

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

The #217 airhacks.fm episode with Daniel Kec (@danielkec) about:

ACID, BASE, local and distributed transactions, MicroProfile Long Running Actions (LRA), SAGA pattern and high availability of LRA transaction coordinators in the cloud

is available for download.

Low Code, No Code, WYSIWYG …and some CRaC--airhacks.fm podcast

2022-11-13T18:31:51Z

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

The #216 airhacks.fm episode with John Ceccarelli (@jceccarelli1) about:

technical writing about NetBeans for Sun Microsystems, no code, low code, and WYSIWYG challenges, JVM optimizations and openJDK CRaC

is available for download.

Blocking Lambdas, Off-Heap Memory, BCE, AWS SDKs--104th airhacks.tv

2022-11-10T03:33:04Z

The November, 104th edition of airhacks.tv with the following topics:

Clustered annotation corrections, blocking lambdas, quarkus, resteasy vs. jersey, modern Java challenges, off-heap memory, boundary control entity structure, AWS SDKs

...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: https://gist.github.com/AdamBien/dc9b58e2c5e4a3232cb8df8fa8ba7fc7 and get the answers at the next airhacks.tv.

Some questions are also answered with a short video: one minute with...

Ten Years After: From Java 6 / Java EE 6 and Glassfish to Quarkus and AWS Lambda--A Live Migration

2022-11-09T08:06:59Z

I took Java 6 / Java EE 6 sample / GlassFish application created live at the JDD 2012 conference (Java EE: Future Is Now, But It Is Not Evenly Distributed Yet) and migrated it to MicroProfile and deployed as AWS Lambda (in 18 mins):

Blocking Lambdas, Java's Complexity, AWS APIs, Clustered Corrections--104th airhacks.tv

2022-11-07T14:50:14Z

Questions (gist.github.com/AdamBien/ad7ced219e3f9224866de30a6bbb347d) for the the 104th (November) edition of airhacks.tv Q & A live stream (youtube.com/bienadam/):

airhacks.tv time machine. Reviewing content from 100 episodes ago: exposed DB objects, vanilla Java EE, shared classes, BCE and *Resources, uploading large files, maven lifecycle hooks (...)
What if a lambda needs to call an external api, I.e. Wait for a reply?
I'm moving from Payara to Quarkus but I can't make sense of the CXF plugin for Quarkus(...)
Would you include a dependency to your project even if you only need a small portion of functionality or dev/copy this single function on your own?
Java Releases now seem to have the tend to add more and more syntax sugars to the language (modules, var, records,…). Whats your opinion on that? Will it help the language to grow or does it make it more unaccessible for inexperienced developers?
Recent Java additions (Off-Heap-Memory, SIMD) seem to offer a memory mgmt. outside of the GC or a vendor specific instruction set. Given those new possibilities in Java do you think it will introduce new complexity for JDK/GC developers to introduce improvements since those features are outside the range of a managed environment?
Do you use the AWS SDK clients, models etc. when you want to access AWS services like S3, DynamoDB etc? If not, how do you create the requests (JASON) and how do you do the authentication?
announcement: "for short questions - you don't have to wait a month"

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/ad7ced219e3f9224866de30a6bbb347d and get the answers at the next airhacks.tv.

Karatsuba, Megamorphic Call-sites, Deadlocks and a bit of Loom--airhacks.fm podcast

2022-11-06T17:02:43Z

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

The #215 airhacks.fm episode with Heinz Kabutz (@heinzkabutz) about:

Deadlocks, Project Loom, Fork Join, concurrency, parallelism and the performance of an empty stream

is available for download.

StarOfJava Session: Past, Present and Future: Serverside Java on Premise and in the Clouds

2022-10-31T15:41:05Z

An recording for the online session for Starof(Java) with the following abstract:

"In this webinar, Adam Bien (@AdamBien) will give you insight on approaches to create, structure, build, test, and survive serverside Java projects. He will set up a few Java SE, Quarkus, Jakarta EE, and MicroProfile projects "from scratch," explain the principles with (hopefully) working code and answer your questions in real-time."

It is Cool to Block Again--airhacks.fm podcast

2022-10-30T11:27:07Z

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

The #214 airhacks.fm episode with Daniel Kec (@@danielkec) about:

reactive programming, Helidon news, Project Loom on Helidon, microservices, transactions and MicroProfile Long Running Actions (LRA)

is available for download.

Captain Primak Meets Clustered Singletons--airhacks.fm podcast

2022-10-25T15:26:07Z

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

The #213 airhacks.fm episode with Lenny Primak (@lprimak) about:

the inner workings of Payaras' @Clustered annotation and corrections / clarification of my explanation in the 103rd airhacks.tv, committing code to Apache Shiro and flying small jets

is available for download.

From a NetBeans Champion to a Friend of the openJDK--airhacks.fm podcast

2022-10-16T16:04:14Z

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

The #211 airhacks.fm episode with Geertjan Wielenga (@GeertjanW) about:

technical writing, Sun Microsystems, NetBeans, and being a Friend of the openJDK (foojay.io)

is available for download.

Clustering in the Clouds, Logging, NoSQL, BCE, Jakarta EE vs. Quarkus, LRA, Lambda--103rd airhacks.tv

2022-10-12T04:24:53Z

The October (103rd) edition of airhacks.tv with the following topics:

Clustered, Distributed Events, System.out.println for logging, NoSQL mapping strategies, BCE, Jakarta EE vs. Quarkus, long running processes with Lambda, caching in Lambda, VSC vs. IntelliJ

...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: https://gist.github.com/AdamBien/ad7ced219e3f9224866de30a6bbb347d and get the answers at the next airhacks.tv.

Some questions are also answered with a short video: one minute with...

How Liberica JDK Happened--airhacks.fm podcast

2022-10-10T12:58:02Z

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

The #211 airhacks.fm episode with Dmitry Chuyko (@dchuyko) about:

programming and math, improving JDKs performance, BellSoft and Liberica JDK

is available for download.

The Cloud is Slower Than Your Local Machine--airhacks.fm podcast

2022-10-03T12:41:57Z

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

The #210 airhacks.fm episode with Goran Opacic (@goranopacic) about:

Open source vs. cloud native managed services trade-offs, cloud native persistence, performance, scalability, and the return of premises

is available for download.

Clustered, Distributed Events, System.out.println, NoSQL challenges, BCE, Jakarta EE vs. Quarkus--103rd airhacks.tv

2022-10-03T08:07:27Z

Questions and topics (gist.github.com/AdamBien/877ce9c05f8eaeaf1dda2ba2df7eddd0) for the 103rd airhacks.tv Q & A live stream (https://www.youtube.com/c/bienadam/):

airhacks.tv time machine. Reviewing content from 100 episodes ago: cross-cutting concerns, horizontal vs. vertical splitting, mockito, configuration (...)
@Clustered vs. Hazelcast and distributed events
data in NoSQL storage
Quarkus vs. Jakarta EE
System.out.println vs. logging
BCE pattern and builders
Is System.out.println too complex and verbose?
announcement: "for short questions - you don't have to wait a month"

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/877ce9c05f8eaeaf1dda2ba2df7eddd0 and get the answers at the next airhacks.tv.

From Punched Cards to Java 11--airhacks.fm podcast

2022-09-25T15:42:20Z

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

The #209 airhacks.fm episode with Glenn Holmer (@gholmer) about:

the transition from punched cards over assembly, servlets, enterprise java to Java 11+.

is available for download.

Debugging Incoming Headers with jwebserver

2022-09-23T15:50:53Z

jwebserver introduced with JEP 408 can be used for incoming header / user agent debugging.

Launching the web server in verbose mode with: jwebserver -o verbose, outputs the incoming headers after executing: curl http://localhost:8000:


> Accept: */*
> Host: localhost:8000
> User-agent: curl/7.79.1

The following Java HttpClient:


import java.net.http.HttpResponse.BodyHandlers;
import java.net.http.*;

var client = HttpClient.newHttpClient();
var request = HttpRequest.newBuilder(URI.create("http://localhost:8000"))
                .GET()
                .build();
var response = client.send(request,BodyHandlers.ofString())

generates these headers:


> Connection: Upgrade, HTTP2-Settings
> Http2-settings: AAEAAEAAAAIAAAABAAMAAABkAAQBAAAAAAUAAEAA
> Host: localhost:8000
> User-agent: Java-http-client/19
> Upgrade: h2c

See it in action and in less than 1 min:

JCon 2022 Conference Keynote: Thinking About Persistence for Serverless Java

2022-09-21T10:53:41Z

Thanks for all the questions and interactions. This keynote was fun!

Abstract:

"Serverless Java applications are stateless and store their data in a range of cloud persistence stores, from relational databases, like Aurora, over file-based block storage like S3 to persistent event stores like Kinesis.

In this keynote, I will focus on the characteristics and challenges of serverless Lambda and Fargate Java application's data access layer and discuss the impact on authentication, authorization, connection handling or scalability, data mapping, portability, and costs. Your questions are highly welcome!"

GraalVM: Meta Circularity on Different Levels--airhacks.fm podcast

2022-09-18T13:37:47Z

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

The #208 airhacks.fm episode with Fabio Niephaus (@fniephaus) about:

various ways for language interoperability on GraalVM and GraalVM developer tools

is available for download.

Mission Critical Transactions--airhacks.fm podcast

2022-09-11T13:04:11Z

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

The #207 airhacks.fm episode with Alejandro Pablo Revilla (@apr) about:

mission critical Java, transactions and POS, dependency management, open source vs. managed services in the clouds

is available for download.

Closing JAX-RS Response with try-with-resources

2022-09-09T04:23:08Z

A JAX-RS Response implements AutoCloseable. It can either be closed explicitly, or via try-with-resources:


import static org.junit.jupiter.api.Assertions.assertNotNull;
import javax.inject.Inject;
import org.eclipse.microprofile.rest.client.inject.RestClient;
import org.junit.jupiter.api.Test;
import io.quarkus.test.junit.QuarkusTest;

@QuarkusTest
public class AutocloseableResponseIT {

    @Inject
    @RestClient
    WebsiteClient client;

    @Test
    void closeExplicitly(){
        var response = this.client.getContent();
        var content = response.readEntity(String.class);
        response.close();
        assertNotNull(content);
    }

    @Test
    void autoClose(){
        try(var response = this.client.getContent()){
            var content = response.readEntity(String.class);
            assertNotNull(content);
        }
    }
}

The corresponding client (Rest Client for MicroProfile) used in this example is:


import javax.ws.rs.GET;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;

import org.eclipse.microprofile.rest.client.inject.RegisterRestClient;

@RegisterRestClient(baseUri = "http://localhost:8080")
public interface WebsiteClient {
    
    @GET
    @Produces(MediaType.TEXT_PLAIN)
    Response getContent();
}

Too many "open" Responses may lead to blocking behavior.

Migrations, Transactions, Retries, Long URIs, JPA, JSON-B, HTTP/2--102nd airhacks.tv

2022-09-07T03:58:47Z

The September edition of airhacks.tv with the following topics:

"J2EE, Java EE, Jakarta EE migration projects, NetBeans vs. VSC, custom Bean Validators, JPA and JSON-B data mapping, fault tolerance and retry-able transactions, HTTP/2 use cases, too long URIs"

is ready:

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: https://gist.github.com/AdamBien/877ce9c05f8eaeaf1dda2ba2df7eddd0 and get the answers at the next airhacks.tv.

Java EE Upgrades, NetBeans, Bean Validation, Transactions, HTTP/2, 414--102nd airhacks.tv

2022-09-05T08:23:08Z

Questions and topics for the 102nd airhacks.tv live stream (https://www.youtube.com/c/bienadam/):

The time machine or topics from 100 episodes ago (the 2nd airhacks.tv)
J2EE, Java EE and Jakarta EE upgrades
NetBeans and Visual Studio Code
The single Jakarta EE dependency
Installation of custom Bean Validators
Date conversions with JPA and JSON-B
The "retriable transaction" annotation
Use cases for http 2 server push
Dealing with 414 (Request-URI Too Large)

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/49efb5c357b19ad2bdde82ea026db803 and get the answers at the next airhacks.tv.

Java 19: Millions of Threads in No Time--airhacks.fm podcast

2022-09-04T14:22:27Z

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

The #206 airhacks.fm episode with Nicolai Parlog (@nipafx) about:

Java 19, Project Loom, structured concurrency and reactive programming

is available for download.

Quarkus, Hanging MP REST Client and the Solution

2022-09-03T10:40:41Z

The following (Rest Client for MicroProfile) interface:


@RegisterRestClient(baseUri = "http://localhost:8000")
public interface WebsiteClient {
    
    @GET
    @Produces(MediaType.TEXT_PLAIN)
    Response getContent();
}

...injected to Quarkus JAX-RS resource:



import javax.inject.Inject;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.core.Response;

import org.eclipse.microprofile.rest.client.inject.RestClient;

@Path("website")
public class WebsiteResource {


    @Inject
    @RestClient
    WebsiteClient firstClient;

    @Inject
    @RestClient
    WebsiteClient secondClient;

    @GET
    public String injected() {
        for (int i = 0; i < 500; i++) {
            Response firstResponse = this.firstClient.getContent();
            Response secondResponse = this.secondClient.getContent();
            System.out.println(i);
        }
        return "+";
    }    
}

will block after 50 iterations.

Reason: the exhaustion of the underlying HTTP connection pool. See stack trace:


org.apache.http.pool.AbstractConnPool.getPoolEntryBlocking(AbstractConnPool.java:393)
org.apache.http.pool.AbstractConnPool.access$300(AbstractConnPool.java:70)
org.apache.http.pool.AbstractConnPool$2.get(AbstractConnPool.java:253)
org.apache.http.pool.AbstractConnPool$2.get(AbstractConnPool.java:198)
org.apache.http.impl.conn.PoolingHttpClientConnectionManager.leaseConnection(PoolingHttpClientConnectionManager.java:306)
org.apache.http.impl.conn.PoolingHttpClientConnectionManager$1.get(PoolingHttpClientConnectionManager.java:282)
org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:190)
org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186)
org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89)
org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56)
org.jboss.resteasy.client.jaxrs.engines.ManualClosingApacheHttpClient43Engine.invoke(ManualClosingApacheHttpClient43Engine.java:302)

The underlying resources are freed with the Response#close call, now all 500 iterations are performed without blocking:


@GET
public String injected() {
    for (int i = 0; i < 500; i++) {
        Response firstResponse = this.firstClient.getContent();
        firstResponse.close();
        Response secondResponse = this.secondClient.getContent();
        firstResponse.close();
        System.out.println(i);
    }
    return "+";
}

The blocking behaviour depends on the JAX-RS / MicroProfile Rest Client implementation. RESTEasy requires an explicit Response#close call, Jersey does not.

Time Measurement with Duration, Instant, and ISO-8601

2022-09-02T03:54:47Z

Duration is a viable alternative to System.currentTimeMillis() for time measurements (also checkout: Beyond System.currentTimeMillis: Measuring Time with Duration and Instant):


import java.time.Duration;
import java.time.Instant;
import java.util.concurrent.TimeUnit;
import org.junit.jupiter.api.Test;

public class DurationToStringTest {

    void slow(){
        try {
            TimeUnit.SECONDS.sleep(1);
        } catch (InterruptedException e) {}
    }

    @Test
    public void durationToString() throws InterruptedException {
        var start = Instant.now();
        this.slow();
        var duration = Duration.between(start, Instant.now());
        var durationAsString = duration.toString();  //ISO-8601
        System.out.println(durationAsString);
    }
}

The method Duration#toString returns a combined representation of hours, minutes, seconds and fractional seconds, standardized by ISO-8601.

The above example produces the following output: PT1.001087S.

From Java Object to JSON-P Type with "Pattern Matching for instanceof"

2022-09-01T02:34:42Z

JEP 305: Pattern Matching for instanceof allows a more concise type conversion; the method javaToJson tests the type of the Java object and converts it to the corresponding JSON-P without casting:


import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;

import java.util.List;
import jakarta.json.Json;
import jakarta.json.JsonValue;
import jakarta.json.JsonValue.ValueType;

public class PatternMatchingTest {

    JsonValue javaToJson(Object javaType){
        if (javaType instanceof String string) {
            return Json.createValue(string);
        } else if (javaType instanceof Integer integer) {
            return Json.createValue(integer);
        } else if (javaType instanceof Boolean bool) {
            return bool? JsonValue.TRUE : JsonValue.FALSE;
        }
        return Json.createValue(javaType.toString());
    }

}

Now a List of various Java types can be converted to the corresponding JSON-P (Jakarta JSON Processing) values:


@Test
public void instanceOfWithoutCasting() {
    var mix = List.of("duke",42,true);

    assertEquals(ValueType.STRING, javaToJson(mix.get(0)).getValueType());
    assertEquals(ValueType.NUMBER, javaToJson(mix.get(1)).getValueType());
    assertEquals(ValueType.TRUE, javaToJson(mix.get(2)).getValueType());
}

Duration Conversion with java.util.concurrent.TimeUnit

2022-08-30T13:44:00Z

java.util.concurrent.TimeUnit provides methods to convert across various time units.

As an example, the following test converts three seconds to milliseconds:


@Test
public void secondsToMs() {
    var expected = 3 * 1000;
    var actual = TimeUnit.SECONDS.toMillis(3);
    assertEquals(expected, actual);
}

Now from milliseconds to minutes:


@Test
public void msToMinutes() {
    var expected = 3;
    var actual = TimeUnit.MILLISECONDS.toMinutes(180000);
    assertEquals(expected, actual);
}

With TimeUnit we can even wait for the next vacations:


@Test
public void sleepWithTimeUnitForThreeSeconds() throws InterruptedException {
    long start = System.currentTimeMillis();
    
    TimeUnit.SECONDS.sleep(3);
    //TimeUnit.DAYS.sleep(300); :-)

    var duration = System.currentTimeMillis() - start;
    assertTrue(duration >= 3000);
}

More Convenience with Rest Client for MicroProfile and Method Overloading

2022-08-28T13:29:52Z

A JAX-RS resource with optional header, or query parameters:


import javax.ws.rs.DefaultValue;
import javax.ws.rs.GET;
import javax.ws.rs.HeaderParam;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;

@Path("/hello")
public class GreetingResource {

    @GET
    @Produces(MediaType.TEXT_PLAIN)
    public String hello(@DefaultValue("james") @HeaderParam("firstName") String firstName,
                        @DefaultValue("duke") @HeaderParam("lastName") String lastName) {
        return firstName + " " + lastName;
    }
}

...is accessible via a Rest Client for MicroProfile interface with overloaded methods:


import javax.ws.rs.GET;
import javax.ws.rs.HeaderParam;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;

import org.eclipse.microprofile.rest.client.inject.RegisterRestClient;

@Path("/hello")
@Produces(MediaType.TEXT_PLAIN)
@RegisterRestClient(baseUri = "http://localhost:8080")
public interface GreetingResourceClient {

    @GET
    public String hello(@HeaderParam("firstName") String firstName, @HeaderParam("lastName") String lastName);

    @GET
    public String hello(@HeaderParam("firstName") String firstName);

    @GET
    public String hello();
    
}

Now the client can be injected and the overloaded methods conveniently called:


import static org.junit.jupiter.api.Assertions.assertEquals;

import javax.inject.Inject;

import org.eclipse.microprofile.rest.client.inject.RestClient;
import org.junit.jupiter.api.Test;

import io.quarkus.test.junit.QuarkusTest;

@QuarkusTest
public class GreetingResourceTest {

    @Inject
    @RestClient
    GreetingResourceClient client;

    @Test
    void helloWithoutParameters(){
        var hello = this.client.hello();
        assertEquals(hello, "james duke");
    }

    @Test
    void helloWithFirstName(){
        var hello = this.client.hello("john");
        assertEquals(hello, "john duke");
    }

    @Test
    void helloWithFirstNameAndLastName(){
        var hello = this.client.hello("john","dukem");
        assertEquals(hello, "john dukem");
    }  
}

Mr. Omni--airhacks.fm podcast

2022-08-27T08:02:20Z

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

The #205 airhacks.fm episode with Ken Fogel (@omniprof) about:

3bit computers, early programming, mainframes, and teaching Java

is available for download.

Creating an empty, immutable, List

2022-08-23T02:43:22Z

Starting with Java 9, you can use List.of() to create an empty, immutable, List instance with typed elements (if there were any):


import java.util.Collections;
import java.util.List;

import org.junit.jupiter.api.Test;

public class EmptyListsTest {

    //Java 9+
    @Test
    public void listOf() {
        var emptyList = List.<String>of();
        assertTrue(emptyList.isEmpty());
    }
}

Prior to Java 9, you would have to use Collections.emptyList() to create an empty, immutable, List:


    //Java 5+
    @Test
    public void emptyList() {
        var emptyList = Collections.<String>emptyList();
        assertTrue(emptyList.isEmpty());
    }

About Java 18--airhacks.fm podcast

2022-08-21T18:34:48Z

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

The #204 airhacks.fm episode with Nicolai Parlog (@nipafx) about:

vacations, Java 18 features, unit and system testing for documentation purposes and new Java keywords

is available for download.

Renarde Web Framework--The Very First Impression

2022-08-19T09:46:34Z

"Hello, Renarde!"--the very first impression of the Quarkus Renarde - a server-side Web Framework based on Convention over Configuration:

This screencast was inspired by a question from the 96h airhacks.tv:

CDI RequestScoped,Threading and the javax.enterprise.context.ContextNotActiveException

2022-08-17T08:45:59Z

Accessing a CDI @RequestScoped bean:


import javax.enterprise.context.RequestScoped;

@RequestScoped
public class Greeter {
    
    public String hello(long number){
        return "hello, duke " + number;
    }
}

asynchronously:


import java.util.stream.Collectors;
import java.util.stream.Stream;
import javax.enterprise.context.ApplicationScoped;
import javax.inject.Inject;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;

@Path("/hello")
@ApplicationScoped
public class GreetingResource {
    
    @Inject
    Greeter greeter;

    @GET
    @Produces(MediaType.TEXT_PLAIN)
    public String hello() {
        var numbers  = Stream.generate(System::currentTimeMillis)
        .limit(10)
        .toList();
        return numbers.parallelStream() //stream() would work...
        .map(number -> this.greeter.hello(number))
        .collect(Collectors.joining(","));
    }
}

may cause a javax.enterprise.context.ContextNotActiveException, like e.g.


javax.enterprise.context.ContextNotActiveException: javax.enterprise.context.ContextNotActiveException: RequestScoped context was not active when trying to obtain a bean instance for a client proxy of CLASS bean [class=airhacks.Greeter, id=59c45f3d436e11499d8793e2c5fc0c26ffbe3933]
- you can activate the request context for a specific method using the @ActivateRequestContext interceptor binding

The entire example was implemented, and explained, "from scratch":

Adding / Merging / Joining two Collections / Lists

2022-08-16T08:28:17Z

To join to List / Collection instances, you can concat their streams:


import java.util.List;
import java.util.stream.Stream;
import org.junit.jupiter.api.Test;
public class JoiningTwoLists {

    @Test
    public void join() {
        var first = List.of(1,2);
        var second = List.of(3,4);
        var joinedList = Stream.concat(first.stream(), second.stream()).toList();
        joinedList.forEach(System.out::println);
    }
}

Prints: 1 2 3 4

See it in action:

"I first played games I wrote"--airhacks.fm podcast

2022-08-14T12:03:32Z

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

The #203 airhacks.fm episode with Daniel Lipp (@dynamic_123) about:

SmallTalk, ugly Java, enterprise architectures, clouds and Quarkus

is available for download.

JSON-B / JSON-P: From TextBlock To JsonArray

2022-08-13T09:17:39Z

You can directly convert Java TextBlocks to JsonArray with Jakarta JSON Binding (JSON-B) and Jakarta JSON Processing (JSON-P):


import org.junit.jupiter.api.Test;
import jakarta.json.JsonArray;
import jakarta.json.JsonObject;
import jakarta.json.bind.JsonbBuilder;

public class TextBlockToJsonArray {

    @Test
    public void deserializeTextBlock() {
        var input = """
            [
                {
                    "name": "java",
                    "age": 25
                },
                {
                    "name": "python",
                    "age": 52
                
                }]
                """;
        var  jsonArray = JsonbBuilder.create().fromJson(input, JsonArray.class);
        
        //output
        jsonArray.getValuesAs(JsonObject.class).forEach(System.out::println);
    }
    
}

The output:


{"name":"java","age":25}
{"name":"python","age":52}

JSON-B and JSON-P functionality comes as a single dependency:


<dependency>
    <groupId>org.eclipse</groupId>
    <artifactId>yasson</artifactId>
    <version>2.0.4</version>
</dependency>

Testing Jakarta EE, JAX-RS concurrency, Bulk Heads, Dependency Inversion, QuarkusTest, Authentication and DB, Secrets, sops, AWS KMS, SSM and SM--101st airhacks.tv Q & A

2022-08-12T10:09:29Z

The 101st airhacks.tv episode with the following topics / questions:

"How to test Jakarta EE applications, JAX-RS concurrency and Bulk Heads, Java interfaces and dependency inversion, dependency on QuarkusTest, using authentication data for filtering, exposing versions, secrets, sops, AWS KMS, SSM and SM"

...is ready to watch:

Any questions left? Ask now: gist.github.com/AdamBien/49efb5c357b19ad2bdde82ea026db803 and get the answers at the next airhacks.tv.

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.

Testability, Concurrency, Dependency Inversion, Authentication--101st airhacks.tv

2022-08-08T08:34:31Z

Questions for 101st airhacks.tv (live https://www.youtube.com/c/bienadam/):

100 episodes back--the topics
The story of Jakarta EE / MicroProfile testability
JAX-RS and endpoint concurrency
About interfaces and Dependency Inversion
A portable QuarkusTest?
Using authentication data for filtering in the business logic

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/1033b6da5d5e75699f0c9c2c44ecb520 and get the answers at the next airhacks.tv.

AWS Lambda, Events, Quarkus and Java--airhacks.fm podcast

2022-08-07T02:31:35Z

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

The #202 airhacks.fm episode with Goran Opacic (@goranopacic) about:

applying enterprise Java thinking to serverless clouds, Quarkus, AWS Lambda, consistency, DynamoDB and the "undifferentiated heavy lifting."

is available for download.

Superfluous "Stringification" and javax.json.stream.JsonParsingException

2022-08-06T13:38:24Z

The following exception:

"javax.json.stream.JsonParsingException: JsonParser#getObject() or JsonParser#getObjectStream() is valid only for START_OBJECT parser state. But current parser state is VALUE_STRING"

...can be caused by a superfluous "stringification" of regular JavaScript strings, like e.g. JSON.stringify(aString)

The JSON-P parser expects: {"hey":"duke"} but gets: "{\"hey\":\"duke\"}"

To fix the problem, remove JSON.stringify(aString); and send the string directly to the MicroProfile server:


const payload = "{"hey":"duke"}";
const response = await fetch("http://localhost:8080/imports", {
    method: 'POST',
    body: payload,
    headers: {
        'Content-type':'application/json'
    }
});

Testing With MicroProfile REST Client: How To Prevent WebApplicationException

2022-08-01T11:41:07Z

An invocation of a not-existing resource / endpoint with MicroProfile REST client, like e.g.:


import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;

import org.eclipse.microprofile.rest.client.inject.RegisterRestClient;

@Path("/SHOULD_NOT_EXIST")
@RegisterRestClient(baseUri = "https://microprofile.io/")
public interface ProblematicResourceClient {

    @GET
    @Produces(MediaType.TEXT_PLAIN)
    Response fetchNotExistingContent();
}

will cause an WebApplicationException like e.g.:


javax.ws.rs.WebApplicationException: Unknown error, status code 404
at org.jboss.resteasy.microprofile.client.DefaultResponseExceptionMapper.toThrowable(DefaultResponseExceptionMapper.java:21)
(...)

To test the 404 status code:


import io.quarkus.test.junit.QuarkusTest;
import static org.junit.jupiter.api.Assertions.assertEquals;
import javax.inject.Inject;
import org.eclipse.microprofile.rest.client.inject.RestClient;
import org.junit.jupiter.api.Test;

@QuarkusTest
public class ProblematicResourceClientIT {

    @Inject
    @RestClient
    ProblematicResourceClient cut;

    @Test
    public void callNotExistingResource() {
        var response = this.cut.fetchNotExistingContent();
        assertEquals(response.getStatus(), 404);
    }
}

...you need to set the MP config parameter to true::


microprofile.rest.client.disable.default.mapper=true

Now the Response contains the status code 404 and the test passes.

Write, Finish, Improve-jPOS--airhacks.fm podcast

2022-07-31T18:29:31Z

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

The #201 airhacks.fm episode with Alejandro Pablo Revilla (@apr) about:

long distance radio, early internet, opensource innovation, building Point of Sales (POS) software in Java, no-dependencies thinking and having fun with continuous improvement.

is available for download.