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Tim te Beek

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titleconferencedate
Deterministic modernization in an age of AIDevoxx France 20262026-04-22
Argues that deterministic, repeatable upgrades beat agentic guessing: use OpenRewrite recipes to codify changes, run them across billions of lines and hundreds…
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Better Assertions with AssertJJCON EUROPE 20262026-04-20
Shows how AssertJ fluent chaining and features like recursive comparison, .actual(), custom domain assertions, and soft assertions produce far clearer failure…
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Trusting AI to Modernize Software at ScaleAI-fokus 20252025-06-10
Moderne builds a mass-scale refactoring pipeline on OpenRewrite and experiments with GPT-4o for recipe generation but finds raw LLM outputs often fail to…
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Better Assertions with AssertJSpring I/O 20252025-05-22
Argues that AssertJ fluent assertions replace terse JUnit/Hamcrest failures with expressive chained checks, custom assertion providers, soft assertions and…
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Tim te Beek at JNation 2024JNation 20242024-06-04
OpenRewrite is a source-level refactoring framework that builds a detailed code model and applies Java visitors to make concrete changes: it updates…
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Weeding Your Micro Service LandscapeJCON EUROPE 20242024-05-13
Automated code transforms using OpenRewrite plus the Moderne Platform/CLI update hundreds of services at once: demo runs 2,000+ evaluated edits in ~20 seconds…
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Modernize your money-makerJ-Fall 20232023-11-09
Automates concrete migrations using OpenRewrite and the mod CLI, running across multiple repositories and producing patch files that apply immediately…
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Major Migrations Made EasyJCON Europe 20232023-06-20
Demonstrates migrating a Spring Boot 2.0 Java 8 branch to Spring Boot 3.1 on Java 17 using OpenRewrite recipes and the web platform, running the same…
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Major migrations made easyVoxxed Days Zurich 20232023-03-16
OpenRewrite performs version and framework migrations reliably and quickly, converting JUnit 4→JUnit 5 and test assertions, upgrading Spring Boot 1.5→latest…
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Major migrations made easyVoxxed Days Luxembourg 20222022-06-21
OpenRewrite is an AST‑based refactoring engine that executes reusable recipes to do real migrations in minutes, not hours: it converts JUnit 4 → JUnit 5…
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Major migrations made easySpring I/O 20222022-05-26
Demonstration shows OpenRewrite using an AST-based refactoring engine with exact type attribution and format preservation to upgrade a Spring Petclinic from…
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Major migrations made easyDevoxx France 20222022-04-20
Two shell commands transform entire codebases: migrate JUnit 4 → JUnit 5 (dependencies, imports, assertions, expected-exception rewrites, Mockito/WireMock…
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