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Andi Huber

PROFILE

Andi Huber

Andi Huber contributed to the apache/causeway repository by delivering core platform upgrades, architectural refactoring, and feature enhancements that improved stability, maintainability, and developer experience. He modernized the build and CI pipeline, migrated the REST stack to Spring Boot 4.x, and refactored key components using Java records to simplify configuration and strengthen immutability. Andi enhanced test reliability and observability, introduced debugging serializers for Wicket, and centralized JSON handling in UI components. Working primarily in Java and JavaScript, he addressed dependency management, improved concurrency handling, and streamlined backend and frontend integration, demonstrating depth in both system design and practical problem-solving.

Overall Statistics

Feature vs Bugs

72%Features

Repository Contributions

607Total
Bugs
54
Commits
607
Features
136
Lines of code
256,385
Activity Months13

Work History

October 2025

13 Commits • 6 Features

Oct 1, 2025

October 2025: Delivered a set of maintenance, observability, and architectural enhancements across the apache/causeway repo to improve stability, security, and speed of delivery. Implemented dependency/build maintenance, enhanced documentation/tooling, introduced debugging/observability serializers for Wicket, strengthened immutability guarantees, refactored factories to Java records, and centralized Select2 base64 decoding to simplify JSON handling. These changes reduce upgrade risk, accelerate verification, and improve overall maintainability.

September 2025

25 Commits • 9 Features

Sep 1, 2025

September 2025 focused on strengthening CI readiness, stabilizing core rendering paths, and delivering UI/UX enhancements to improve developer workflow and end-user experience in apache/causeway. Key outcomes include JDK 25 CI readiness, rendering stability improvements, and UI/UX enhancements, complemented by dependency and platform modernization to reduce risk and accelerate delivery.

August 2025

44 Commits • 12 Features

Aug 1, 2025

Aug 2025: Achieved green, faster test cycles through test stabilization (CAUSEWAY-3900) and modernized dependencies, UI/icon refinements, and improved large-export handling. Delivered concrete features with measurable reliability gains, upgraded dependencies for security/compatibility, and improved diagnostics, all while maintaining a tight focus on business value and developer productivity.

July 2025

47 Commits • 10 Features

Jul 1, 2025

July 2025 – Apache Causeway (apache/causeway) delivered a focused upgrade and stabilization cycle, centered on a Spring Boot 4.x upgrade, REST stack modernization, and CI/build efficiency boosts. The work reduces upgrade risk, accelerates future feature delivery, and improves test reliability across the REST surface and build pipeline. Key features delivered: - Migration Notes (v4): Updated migration guidance for the Spring Boot 4.x upgrade (commits: 4d1672f32be3462b5819b2b84012c23d3a19682e; 05a8dd970b191d0126fc93caff970b0815451349; 90fddd802fdf3f3d529afc6f6a6e51a1a14db801). - Spring Boot 4.x Upgrade: Implemented core changes for SB4, including a temporary Resteasy workaround and a major version upgrade (commits: 8e004d6ef929f5f9ab6ab1dadeae87954fe68546; 8819921b416061187b5d5bf222ff8dafe9e7fb6e; e80d67b81c22a2508331baaead2840062139f7ba). - RO Path and Contract Tests Enhancements: Shift to Spring RestControllers, content negotiation refinements, and contract test reintegration (commits: 077e960b25468e7f7c84818b9b10669ae3460863; 1ef623bccdb2f3ca7bf8a66f4dc52ba49b3ef26f; 0433095aa54c08534ae3fc2051e3dc49405f1b07; 2c71173659442bedccfb580b90ecd10b2f9d7619; a06e60f16b7d1a2f6c5a2ee2a3449d274339b005; 85c41abfb334cad7b764e83c69daa9ebca8052ff; e9f0eb2ea1aad54a91520c34bb172d68185b32b2; 7f8a00a771a39252749ea8999f6603586ad77154; 9659f61de2e879dfdf0c07d4548e9935cc430868). - RESTful Client migration to Spring RestClient: Removal of RESTEasy/JAX-RS artifacts and migration of RestfulClient to Spring RestClient (commits: d241d3d918bcbeef07d866b7cca8fe4edc354c74; f2058afb231e02ccadadd56b01ce95aecea2f6e4; 066b628c087b8a7b1035e656794037ea5db93be2; 94ce09459ddb64f6a493acbceb0d249d22c24104; 52e8d7ac9113cd3eaf92eec5bce3dd5907715c6d). - REST tests stability and retry logic improvements: Added debug logging, retry handling polish, and reduced delays to stabilize RO tests (commits: 661e39d6f4e0f89c7424291d8e8d4e5141dec11e; 918669509c5a2cda71c8fcd259707c49ef872e5f; fff97ed9f6b2bfb51e064eab1900700b6babdc33; 44e574d78e65c923b32657a7fb785ac398019694; 4a80a4336a1d702b779910a799932c3933a258ec). - Build configuration and POM restructuring: Centralized build/resource config into the parent POM with incubator POM adjustments and related fixes (commits: 7fdf81b06d7995821e028529ae0d0e1acfa9cf3f; d4e2a075530ec6878b177965ab00fc75379856c7; a671b4f906866a0c2ce3719de10a3fbd5732b446). - Dependency upgrades and framework migrations: Upgraded pdfjs-dist, Wicket, DataTables, and Spring Boot as part of modernization efforts (commits: bc2dbcbbc209c6624e775c98b3a6c7976f425030; 4eef1ca108bb8a8591a63ae4378952e86592065d; 5404715d403633dae85a7bf937674b283f2ebe0b; 562bf0789590d0281fc5a870afe72a05d851c0af; c30497dccfd1915d661db8c67c1431342d0dfc1f; d1237fadad6aef2f7a4cbf6bf4d21f080a70856a). - Quality of life and refactors: Added flatMap to Blob/Clob; moved models to viewer commons and converted EclipselinkConfiguration to a Java record; ongoing cleanup and refactors (commits: f677889de0286274f23246288e953ee6fb67d99b; 39f2320db40d70cbd48de9435a1f66ba95fb072c; 6747aa21d3b1097d4b47a4988fad81811fec7eca). - Cleanup and bug fixes: General cleanup, test stability tweaks, and targeted bug fixes (commits: d0c71ea4c458a081c0bbb5f71ac61efc3034cabe; 0941b1e6ee4c03197facc6f5c36536fbe4dd05e1). Major bugs fixed: - CAUSEWAY-3897: Test stability workaround using @DirtiesContext to stabilize unstable RO tests (commit 0941b1e6ee4c03197facc6f5c36536fbe4dd05e1). - CAUSEWAY-2445: CI/build system improvements and POM adjustments, including versioning for 4.0.0-rc-4 and script handling fixes (commits: 61b6cf58c719aec7f693f6f0bd131cb7465efefc; f1b5ccd9036676cb7d2c5c75284b91358a35a950; 18034379d1be04bde5b0c4ef023141a7090e9df7; 7d57db23aa1b23e6faf84b6459cee6cafb43c783). - Model cleanup: Removed ModelAbstract (wkt) and updated Javadoc as part of CAUSEWAY-2297 cleanup (commits: 28f95999ba60fcb2215e4fc91c5445acbd240644; de13bb9bdab64ca1b86ad79f0da64a044e007398). Overall impact and accomplishments: - Reduced upgrade risk and accelerated future feature work by completing a comprehensive SB4 upgrade, REST stack modernization, and test stabilization across the codebase. - Improved reliability of REST tests and CI pipeline, leading to faster feedback loops and more deterministic builds. - Introduced modern configuration patterns (Java records for EclipselinkConfig) and moved models to shared components, boosting maintainability and future-proofing the architecture. Technologies/skills demonstrated: - Spring Boot 4.x migration, temporary Resteasy fixes, and major version upgrade strategy. - Spring RestClient migration and removal of RESTEasy/JAX-RS artifacts for a cleaner REST stack. - Spring RestControllers usage, content negotiation refinements, and contract test reintegration. - REST test stabilization techniques: debug logging, RetryHandler polishing, and reduced artificial delays. - Build/CI modernization: parent POM consolidation, CI versioning, and script handling improvements. - Code quality improvements through dependency upgrades (pdfjs-dist, Wicket, DataTables) and modern Java configuration via record types. - Refactoring for immutability and better abstractions (EclipselinkConfiguration -> Java record) and consolidation of business models into viewer commons.

June 2025

41 Commits • 9 Features

Jun 1, 2025

June 2025 performance summary for apache/causeway focused on modernization, stability, and platform maturity. Key work spanned removal of Joda time, security/platform upgrades, and substantial refactoring of the proxy/invocation stack, paired with targeted test stabilization efforts. This set of work reduces technical debt, improves runtime reliability, and strengthens security posture while preparing the codebase for smoother future changes.

May 2025

30 Commits • 8 Features

May 1, 2025

May 2025 was focused on stabilizing and modernizing the build, CI, and runtime platform for the apache/causeway project while continuing feature work. The month delivered a series of platform upgrades, CI enhancements, and logging improvements that reduce risk, improve maintainability, and accelerate future releases. Key progress included dependency and platform upgrades, build system modernization, and targeted bug fixes that improve observability and runtime behavior.

April 2025

12 Commits • 4 Features

Apr 1, 2025

April 2025 monthly performance snapshot for apache/causeway: delivered core ORM introspection and API enhancements, stabilized UI/data handling, and completed critical platform maintenance to sustain development velocity and product stability.

March 2025

57 Commits • 11 Features

Mar 1, 2025

March 2025 summary for apache/causeway: Delivered major UI and persistence architecture enhancements, stabilized core APIs, and completed key dependency/build improvements. The principal work under CAUSEWAY-3859 unified and simplified the value-model/serialization surface by flattening ActionSemanticsFacet, PromptStyleFacet, LayoutFacet into a record-based representation, and renaming LayoutFacet to LayoutPrefixFacet with extensive internal refactors to support consistent serialization and persistence. This groundwork enables easier evolution of the UI facets and more reliable cross-service data exchange. The release also added user-friendly drag-and-drop for text inputs, reduced runtime coupling by removing LiveQuery dependency, and made a series of persistence and API cleanup refinements to improve stability and performance.

February 2025

80 Commits • 10 Features

Feb 1, 2025

February 2025 monthly summary for apache/causeway: Focused on delivering UI polish, architectural modernization, reliability, and performance gains that translate to faster time-to-value for users and reduced risk in builds and deployments. The work spans dependency modernization, server-side rendering improvements, extensive Java record refactoring across modules, value semantics enhancements, and stronger CI/test infrastructure.

January 2025

50 Commits • 14 Features

Jan 1, 2025

January 2025 monthly summary for apache/causeway focuses on stabilizing the platform, expanding data access capabilities, and advancing export and UI features while modernizing dependencies. Delivered foundational JDBC Entity Facet support and related components for robust data access (primary key extractor, fetchByBookmark, and lifecycle handling). Implemented a PDF export prototype with tabular export, Boxable integration, and font handling robustness, accompanied by export cleanup and an Excel export PoC. UI improvements include an Image Panel revamp and File Upload UI enhancements. Upgraded core dependencies (Spring Boot, Wicket) with a migration to JSpecify annotations and updated Jakarta CDI API. Also completed notable stability and quality improvements, including a Calendar view NPE fix, and reductions in reporting noise for orphaned methods.

December 2024

45 Commits • 9 Features

Dec 1, 2024

December 2024 — Apache Causeway monthly summary. Focused on API hardening, tree-model simplification, and dependency modernization to reduce risk and improve user-facing UX. Key deliverables include encapsulation tightening for ObjectMember (CAUSEWAY-3834); removal of an unnecessary conversion step in _DocumentFactories (CAUSEWAY-3835); Map-as-collection support with element-type detection (CAUSEWAY-3837); progress on the Simplified Tree Model and Master-detail view (CAUSEWAY-2297 parts 2-16 and CAUSEWAY-3838); and metamodel tooling enhancements with PropertyLayout/CollectionLayout support (CAUSEWAY-3836). Built stability improvements through targeted fixes (simplified empty table rendering regressions; CAUSEWAY-2297 parts 1-2) and AOPPatch-related fixes (CAUSEWAY-3839). Dependency upgrades: Font Awesome 6.7.1, pdfjs-dist 4.9.155, Spring Boot 3.4.1, Wicket 10.3.0.

November 2024

132 Commits • 27 Features

Nov 1, 2024

November 2024 monthly summary for apache/causeway focused on a broad architectural refresh, API simplifications, data-model modernization, UI improvements, and reliability upgrades. Delivered major encapsulation and ActionLinks refactor; migrated critical data models to Java records; enhanced UI routing and domain/object page naming; improved exporter and testing stability; and upgraded dependencies and CI to support JDK23.

October 2024

31 Commits • 7 Features

Oct 1, 2024

October 2024 monthly summary for the apache/causeway project. Delivered a focused set of feature work and code quality improvements that enhance stability, API maturity, and user-facing UX, while laying groundwork for data/tabular workflows. Key business impact: improved stability via framework upgrade, stronger maintainability through code modernization, and clearer, more robust data/tabular capabilities that support future analytics and UI enhancements.

Activity

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Quality Metrics

Correctness90.4%
Maintainability91.6%
Architecture88.4%
Performance82.4%
AI Usage20.0%

Skills & Technologies

Programming Languages

AsciiDocBashCSSGraphQLGroovyHTMLJavaJavaScriptKotlinN/A

Technical Skills

AOPAPI DesignAPI DevelopmentAPI IntegrationAPI MigrationAnnotation ProcessingAnnotationsApache CausewayApache POIApache WicketAsynchronous ProgrammingBackend DevelopmentBean ClassificationBean ConfigurationBean Management

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

apache/causeway

Oct 2024 Oct 2025
13 Months active

Languages Used

JavaAsciiDocCSSHTMLJavaScriptYAMLadoccss

Technical Skills

API DesignApache CausewayApache WicketBackend DevelopmentBuild ToolsCode Cleanup

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