~/talks

Ivar Grimstad

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titleconferencedate
The Past, Present, and Future of Enterprise JavaJDD 20252025-10-21
Timeline shows Jakarta EE 11 as a Java SE 17/21‑verified platform that runs on Java 25, with a new core profile for CDI‑centric microservices and a refactored…
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What Every Spring Developer Should Know About Jakarta EESpring I/O 20252025-05-22
Spring and Jakarta EE are tightly coupled: Spring Framework 6 already relies on Jakarta 9/10 APIs and Spring Framework 7 targets Jakarta 11, with Jakarta 11…
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Duke on CRaC with Jakarta EEJCON EUROPE 20252025-05-12
Demonstration shows Coordinated Restore at Checkpoint (CRaC) cutting Jakarta EE app cold-starts by roughly 70–75% for the Helidon example, from ~1.4s to…
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Jakarta EE Meets AIGreat International Developer Summit 20252025-04-22
Jakarta EE 11 updates target Java 21 compatibility, introduce Jakarta Data, make CDI more central, and split into core profile (released December), web profile…
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Boost Your Performance and Developer Productivity with Jakarta EE 11Great International Developer Summit 20252025-04-22
Jakarta EE 11 adds Java 21 support while compiling APIs to Java 17, introduces a new Jakarta Data spec (Spring‑Data‑style repositories), formalizes a…
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The Evolution of Enterprise Java with Jakarta EE 11 and BeyondJavaOne 20252025-03-18
Jakarta EE 11 is released with support for virtual threads, a new Jakarta Data spec (Spring‑Data‑like repository pattern plus JDQL), and roughly half the…
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Duke on #CRaC with #JakartaEEDevnexus 20252025-03-04
Demonstrates that CRaC (Coordinated Restore at Checkpoint) can cut Jakarta EE container startup from seconds to sub‑second by: building a small Jakarta app…
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Jakarta EE Meets AIPorto Tech Hub Conference 20242024-11-26
Claims that Java alone suffices to integrate LLMs, not Python, and proves it by wiring Java REST endpoints to OpenAI using Jakarta REST, CDI producers and…
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A Journey of Contribution and Collaboration in Open SourceSFSCON 20242024-11-08
Eclipse Foundation hosts 400+ projects including Jakarta and Eclipse Che and provides governance, CI and supply-chain security services so projects can meet…
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The Final Frontier of Web Development: React Server Comp. vs Jakarta EEGeeCON 20242024-05-15
Compares concrete server-rendering setups: a Next.js React Server Components demo (Next.js rendering simple pages on port 3000) versus equivalent Jakarta EE…
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Jakarta EE 11 - Performance and Developer ProductivityJCON EUROPE 20242024-05-13
Jakarta EE 11 targets June–July 2024, compiles APIs to Java 17 binaries and tests on Java 21, and adds a new standardized repository API called Jakarta Data…
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From Spring Boot 2 to Spring Boot 3 with Java 21 and Jakarta EEGreat International Developer Summit 20242024-04-23
Spring Boot 3 upgrades to the Jakarta EE 9+ APIs so javax -> jakarta breaks appear immediately: compilation errors on imports, failing context-load tests, and…
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From Spring Boot 2 to Spring Boot 3 with Java 21 and Jakarta EEVoxxed Days Bucharest 20242024-03-27
Migrating a Spring Boot 2 app to Spring Boot 3 requires changing javax → jakarta across code and dependent jars, updating Spring and Jakarta versions, and…
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Open Source - A Journey of Contribution and CollaborationJCON WORLD ONLINE 20232023-11-20
Nearly everyone at the conference consumes open source, but far fewer contribute; one quick win is noncode work like translate tutorials or filing bugs. Solo…
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Prepare for Jakarta EE 11!J-Fall 20232023-11-09
Jakarta EE 11 is the first release under the new cadence with a target roughly around March 2024, raising the API source level to Java 21 so code must compile…
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How To Be a Responsible Open Source CitizenØredev 20232023-11-08
Breaks down what actually matters: concrete project types (solo, single‑vendor, community, foundation), real tooling and programs like Adoptium aquavit…
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Migrating From Spring Boot 2 To Spring Boot 3. What's Jakarta EE Got To Do with It?Øredev 20232023-11-08
Migration requires changing javax to jakarta across app and transitive jars and the demonstration shows the exact steps and tools that make it practical The…
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Prepare for Jakarta EE 11!EclipseCon 20232023-10-16
Jakarta EE 11 targets Java 21, compiles and runs TCKs on 21, and aims for a June–July 2024 release with Milestone 1 on Dec 5 and spec contributions due Nov 28…
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MicroProfile and Jakarta EE PanelEclipseCon 20232023-10-16
Jakarta EE 11 sets the source level to Java 21 baseline, removes Managed Beans and adds Jakarta Data added as a new spec, targeting a June–July release window…
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Jakarta EE 10: Modern & Lightweight Cloud Application DevelopmentGOTO Amsterdam 20232023-06-13
Jakarta EE 10 adds a Jakarta EE Core Profile for small microservice runtimes and shows it boots jar-based services fast; demos use Java SE Bootstrap API…
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Modern and Lightweight Cloud Application Development with Java and Jakarta EEGreat International Developer Summit 20232023-04-25
Jakarta EE 10 delivers a Jakarta RESTful Web Services Java SE bootstrap API that starts JAR-packaged apps from main, and a CDI 4.0 Lite reflection‑free…
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Everything YOU need to Know About Jakarta EE 10Øredev 20222022-11-08
Live demos show concrete howtos not corporate slogans: creates a runnable JAR with the Java SE Bootstrapping API and a Jakarta REST endpoint that starts…
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Modern and Lightweight Cloud Application Development with Jakarta EE10J-Fall 20222022-11-03
Jakarta EE 10 (released Sept 22) adds a new Jakarta EE Core Profile for smaller microservice runtimes and native image compilation, a reflection-free CDI 4.0…
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Jakarta EE 10 - Simplicity for Modern and Lighweight Cloud ApplicationsEclipseCon 20222022-10-24
Jakarta EE 10 ships (released Sep 22) with a new Core Profile for microservices that targets much smaller runtimes, supports Java SE 11 and 17 (APIs compiled…
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Jakarta EE Security - Sailing Safe in Troubled WatersEclipseCon 20222022-10-24
Jakarta EE 10 actually ships OpenID Connect built into Jakarta Security, layering a developer-facing Jakarta Security API over lower-level Jakarta…
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Jakarta EE 10 and BeyondJNation 20222022-06-07
Jakarta EE 10 adds a new Jakarta EE Core Profile aimed at microservices and native compilation, raises APIs to Java SE 11 (TCKs tested on 11 and 17) and…
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Jakarta EE 10 Feature by FeatureJava Day Istanbul 20222022-05-27
Jakarta EE 10 raises the baseline to Java 11 (tests run on 11 and 17) and adds concrete features: Jakarta EE Core Profile for smaller runtimes, CDI Lite…
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Jakarta EE Core Profile - A Slimmer Jakarta EEJCON-ONLINE 20212021-10-05
Proposal creates a minimalist Jakarta EE subset that targets REST-centric microservices with CDI Lite, JAX-RS, JSON‑P/JSON‑B and Jakarta Config to enable…
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Jakarta EE 9 and BeyondFOSDEM 20212021-02-06
Jakarta EE 9 lowers the barriers of entry, ease migration, and lays a foundation for future innovation. Jakarta EE 9 is out! This is the second release of…
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Jakarta EE 9 and BeyondDeveloper Summit 20202020-11-21
Jakarta EE 9 finalizes the namespace change from javax to jakarta, opens the open-source TCK for free self-certification, and trims legacy specs to let lighter…
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Jakarta EE 9 and BeyondJ-Fall Virtual 20202020-11-03
Jakarta EE 9 finalizes the legal transfer and does a namespace switch from javax. to jakarta.; migration is demonstrated by converting a JAX-RS/Servlet app…
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End to End Portable Microservices - with Eclipse MicroProfileJCON 20202020-10-27
Builds five runnable microservices using MicroProfile APIs (Health, OpenAPI, RestClient, Config, FaultTolerance, JWT) with implementations on Open Liberty…
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What's Going on With Jakarta EEDevnexus 20202020-02-19
Jakarta EE 9 focuses on three concrete goals: lower entry barriers by removing rarely used and deprecated APIs, javax → jakarta rename to perform the namespace…
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Microservice Patterns - Implemented by Eclipse MicroProfileDevoxx Belgium 20192019-11-04
Demonstrations use MicroProfile specs (Ivar uses MicroProfile 3.0 and starters) to implement real patterns: externalized config via application.properties, env…
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Beyond Jakarta EE 8, by and for the Jakarta communityDevoxx Belgium 20192019-11-04
Jakarta EE 9 prioritizes the painful but necessary namespace change to jakarta. as a fast baseline, with plans to prune older specs (candidates include SOAP…
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Serverless JavaQCon São Paulo 20192019-05-06
Clear comparison of concrete Java serverless options with working demos and tradeoffs: builds a one-class "hello Duke" function with Maven Shade and deploys it…
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A Collection of Microservice PatternsJfokus 20192019-02-04
Covers eight concrete microservice patterns and shows working MicroProfile demos using Payara, TomEE and OpenLiberty: compares thin WAR vs fat JAR layers and…
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Opening Up Java EE: Panel Discussion withDevoxx Belgium 20172017-11-06
Oracle transfers Java EE stewardship to the Eclipse Foundation under the EE4J 1.0 charter, with the immediate milestone of moving code (including Jersey and…
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Interview withDevoxx Belgium 20172017-11-06
Java EE moves to the Eclipse Foundation, claiming more openness and lower contribution barriers so more companies are willing to contribute and the previous…
Interview on
Microprofile - New and NoteworthyJavaDay Ukraine 20172017-11-04
MicroProfile 1.2 arrives with concrete APIs: MicroProfile 1.2 adds config, health checks, metrics, fault tolerance and JWT propagation; demos run as executable…
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MVC 1 0: The @Controller of the CommunityOracle OpenWorld 20172017-10-01
Specification JSR 371 moves to the community as a standalone MVC 1.0 spec with an open source TCK and a reference implementation called Ozark. Controller layer…
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Snoop - a Discovery Service for Java EEJfokus 20162016-02-08
Snoop is presented as a 100% Java EE alternative to Eureka that runs as a Java EE app (GlassFish/Liberty) in Docker with a web UI, where services register…
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What's Coming in Java EE 8JavaDay Kyiv 20152015-11-06
Roadmap shows concrete additions: HTTP/2 in Servlet 4 for multiplexed requests, a standard JSON-B binding plus JSON-P updates (pointers/patch and Java 8 stream…
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100% JavaEE MicroservicesJavaDay Kyiv 20152015-11-06
Snoop is a Java EE service-discovery system that registers services over a WebSocket heartbeat every 10 seconds and exposes lookups via an annotation; enable…
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Spring 4, Java EE 7 or Both?JavaDay Kiev 20142014-11-06
Compares Spring 4.1 and Java EE 7 by building demos on WildFly: a Spring component packaged into a Java EE WAR and a Java EE EJB/Cdi bean injected into a…
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