apache/tika
Nov 2024 – Mar 2026
17 Months active
Languages Used
JavaKotlinXMLYAMLScala
Technical Skills
Bug FixingBuild ConfigurationBuild ManagementBuild ToolsCode CleanupCode Documentation
Tilman Hausherr
PROFILE
Tilman Hausherr
Tilman contributed to the apache/tika repository over 17 months, focusing on modernizing and stabilizing the codebase through extensive dependency management, cloud integration, and code quality improvements. He delivered nearly one hundred features, including upgrades to AWS SDKs, Google Cloud, and Microsoft Graph, while refactoring APIs and enhancing metadata extraction for formats like PDF and XMP. Using Java, Kotlin, and Maven, Tilman addressed security vulnerabilities, improved build reliability, and streamlined configuration management. His work emphasized maintainability by replacing deprecated APIs, expanding test coverage, and introducing automated build tools, resulting in a more robust, cloud-ready platform with reduced technical debt.
Overall Statistics
Feature vs Bugs
83%Features
Repository Contributions
442Total
Bugs
20
Commits
442
Features
98
Lines of code
4,997
Activity Months17
Your Network
668 peopleSame Organization
@apache.org650
a.huberMember
Akira AjisakaMember
Andrzej BiałeckiMember
Arturo BernalMember
Abhishek KumarMember
Attila BukorMember
VampireAchaoMember
Abhishek ChennakaMember
Andreas DangelMember
Work History
March 2026
29 Commits • 10 Features
Mar 1, 2026March 2026 (2026-03) monthly summary for apache/tika: Key platform modernization and stability improvements driven by dependency updates, cloud service integrations, and PDF handling enhancements. Highlights include Micronaut integration and TIKA-4488 version updates; comprehensive TIKA-4327 dependency and build maintenance across AWS, Google Cloud, Kotlin, JAXB, Mockito, and Maven tooling; TIKA-4614 enhancements for pdfbox 3.0.7 integration and related javadoc fixes; updates to AWS, Google Cloud, and related modules; Kotlin language/version updates; and a targeted bug fix for incorrect method usage in a critical code path. These changes collectively improve compatibility, security posture, build reliability, and maintainability, enabling faster feature delivery with lower upgrade risk. Technologies demonstrated: Micronaut, AWS, Google Cloud, Kotlin, JAXB, Mockito, PDFBox 3.x, Maven tooling, SQLite, and Java.
29 Commits • 10 Features
Mar 1, 2026March 2026 (2026-03) monthly summary for apache/tika: Key platform modernization and stability improvements driven by dependency updates, cloud service integrations, and PDF handling enhancements. Highlights include Micronaut integration and TIKA-4488 version updates; comprehensive TIKA-4327 dependency and build maintenance across AWS, Google Cloud, Kotlin, JAXB, Mockito, and Maven tooling; TIKA-4614 enhancements for pdfbox 3.0.7 integration and related javadoc fixes; updates to AWS, Google Cloud, and related modules; Kotlin language/version updates; and a targeted bug fix for incorrect method usage in a critical code path. These changes collectively improve compatibility, security posture, build reliability, and maintainability, enabling faster feature delivery with lower upgrade risk. Technologies demonstrated: Micronaut, AWS, Google Cloud, Kotlin, JAXB, Mockito, PDFBox 3.x, Maven tooling, SQLite, and Java.
March 2026
February 2026
10 Commits • 1 Features
Feb 1, 2026February 2026 monthly focus for Apache Tika centered on stabilizing runtime and ensuring forward compatibility through broad platform dependency upgrades across core libraries and cloud SDKs. The work reduces risk from outdated transitive dependencies and paves the way for smoother adoption of upcoming features and cloud integrations.
February 2026
10 Commits • 1 Features
Feb 1, 2026February 2026 monthly focus for Apache Tika centered on stabilizing runtime and ensuring forward compatibility through broad platform dependency upgrades across core libraries and cloud SDKs. The work reduces risk from outdated transitive dependencies and paves the way for smoother adoption of upcoming features and cloud integrations.
January 2026
6 Commits • 2 Features
Jan 1, 2026January 2026 monthly summary for Apache Tika focusing on platform stability, security via dependency upgrades, and enhancements to Media Management metadata extraction.
6 Commits • 2 Features
Jan 1, 2026January 2026 monthly summary for Apache Tika focusing on platform stability, security via dependency upgrades, and enhancements to Media Management metadata extraction.
January 2026
December 2025
28 Commits • 9 Features
Dec 1, 2025Dec 2025 focused on security, compatibility, and maintainability through a broad modernization push that enabled faster, safer releases and improved metadata support.
December 2025
28 Commits • 9 Features
Dec 1, 2025Dec 2025 focused on security, compatibility, and maintainability through a broad modernization push that enabled faster, safer releases and improved metadata support.
November 2025
3 Commits • 1 Features
Nov 1, 2025November 2025: Focused on strengthening the security posture and maintainability of the apache/tika codebase by updating core dependencies for security vulnerabilities and compatibility. This included updates to JUnit and Spring, newer Kotlin version, and updated AWS dependencies. The changes were delivered as a cohesive set of commits under TIKA-4327, providing a safer, more compatible foundation for future work.
3 Commits • 1 Features
Nov 1, 2025November 2025: Focused on strengthening the security posture and maintainability of the apache/tika codebase by updating core dependencies for security vulnerabilities and compatibility. This included updates to JUnit and Spring, newer Kotlin version, and updated AWS dependencies. The changes were delivered as a cohesive set of commits under TIKA-4327, providing a safer, more compatible foundation for future work.
November 2025
October 2025
82 Commits • 13 Features
Oct 1, 2025October 2025 performance summary for apache/tika: Delivered extensive modernization, cloud-ready migrations, and reliability improvements. Focused on business value through security, compatibility, and maintainability across the codebase.
October 2025
82 Commits • 13 Features
Oct 1, 2025October 2025 performance summary for apache/tika: Delivered extensive modernization, cloud-ready migrations, and reliability improvements. Focused on business value through security, compatibility, and maintainability across the codebase.
September 2025
25 Commits • 10 Features
Sep 1, 2025September 2025 focused on dependency modernization and build-tooling refresh for Apache Tika (apache/tika) under the TIKA-4327 initiative, with a targeted fix for TIKA-4485. Completed broad updates across core modules and cloud integrations to improve security, stability, and cloud readiness. Key progress includes bulk updates to JetBrains annotations, Kotlin, Kafka, and Puppycrawl; extensive AWS SDKs and related libraries (Nimbus, Netty) updates; Versions plugin refresh; Reactor Netty upgrade; activation and XML Bind configuration improvements; and non-AWS library updates (Microsoft Graph, Guava, Bouncy Castle, Azure Identity, Spring), plus alignment of build tooling and related modules. A critical bug fix for relative file paths and its test was completed (TIKA-4485). Overall, the changes reduce dependency drift, strengthen cloud integration, and position Tika for upcoming feature work with modern libraries and tooling.
25 Commits • 10 Features
Sep 1, 2025September 2025 focused on dependency modernization and build-tooling refresh for Apache Tika (apache/tika) under the TIKA-4327 initiative, with a targeted fix for TIKA-4485. Completed broad updates across core modules and cloud integrations to improve security, stability, and cloud readiness. Key progress includes bulk updates to JetBrains annotations, Kotlin, Kafka, and Puppycrawl; extensive AWS SDKs and related libraries (Nimbus, Netty) updates; Versions plugin refresh; Reactor Netty upgrade; activation and XML Bind configuration improvements; and non-AWS library updates (Microsoft Graph, Guava, Bouncy Castle, Azure Identity, Spring), plus alignment of build tooling and related modules. A critical bug fix for relative file paths and its test was completed (TIKA-4485). Overall, the changes reduce dependency drift, strengthen cloud integration, and position Tika for upcoming feature work with modern libraries and tooling.
September 2025
August 2025
34 Commits • 8 Features
Aug 1, 2025August 2025: Delivered cloud, search, and build hygiene improvements for apache/tika, focusing on cloud platform integration, search enhancements, stability, and maintainability. Modernized dependencies across AWS, Microsoft Graph, Google Cloud, Lucene, and related libraries; implemented NPE prevention; and streamlined builds by removing unnecessary test-jar goals.
August 2025
34 Commits • 8 Features
Aug 1, 2025August 2025: Delivered cloud, search, and build hygiene improvements for apache/tika, focusing on cloud platform integration, search enhancements, stability, and maintainability. Modernized dependencies across AWS, Microsoft Graph, Google Cloud, Lucene, and related libraries; implemented NPE prevention; and streamlined builds by removing unnecessary test-jar goals.
July 2025
27 Commits • 7 Features
Jul 1, 2025July 2025 monthly summary for apache/tika. Delivered the TIKA-4327 scope across code cleanup, dependency modernization, and process improvements. Core work focused on deprecation remediation, API alignment, and modernization of control flow. Executed a broad, cross-module upgrade of libraries and plugins to current versions, enhancing security, stability, and compatibility with cloud services and enterprise integrations. Consolidated plugin version management by moving the plugin version to the parent POM, enabling consistent builds. Updated cloud and client libraries (AWS SDKs, Microsoft Graph, Google Cloud) and static analysis tooling to stay current and reduce technical debt. Resulted in a more maintainable, future-ready Tika codebase with improved cloud readiness and safer, higher-quality builds.
27 Commits • 7 Features
Jul 1, 2025July 2025 monthly summary for apache/tika. Delivered the TIKA-4327 scope across code cleanup, dependency modernization, and process improvements. Core work focused on deprecation remediation, API alignment, and modernization of control flow. Executed a broad, cross-module upgrade of libraries and plugins to current versions, enhancing security, stability, and compatibility with cloud services and enterprise integrations. Consolidated plugin version management by moving the plugin version to the parent POM, enabling consistent builds. Updated cloud and client libraries (AWS SDKs, Microsoft Graph, Google Cloud) and static analysis tooling to stay current and reduce technical debt. Resulted in a more maintainable, future-ready Tika codebase with improved cloud readiness and safer, higher-quality builds.
July 2025
June 2025
53 Commits • 13 Features
Jun 1, 2025June 2025 monthly summary for Apache tika focusing on delivery, reliability, and strategic modernization across the codebase. Key features delivered and enhancements include broad dependency modernization (TIKA-4327) across core libraries (puppycrawl, Google Cloud, BouncyCastle, Kotlin, Microsoft Graph, msal4j, build-helper-maven-plugin, Azure, Netty, Commons FileUpload) and extensive dependency upgrades (AWS, Reactor Core, Jackson, Spring, Kotlin stdlib, Log4j) to align with security and performance requirements. Region handling improvements with autodetect parser integration (TIKA-4435) reduced NPE risk, corrected resource naming, tightened availability checks, and improved testing instrumentation. AWS integration enhancements (TIKA-4435) migrated to AWS SDK v2 and added related libraries and utilities, strengthening cloud readiness and scalability. Additional dependency cleanup and code-quality work (TIKA-4435 cleanup, TIKA-4327 deprecations replacement, and code cleanliness) reduced technical debt and improved maintainability.
June 2025
53 Commits • 13 Features
Jun 1, 2025June 2025 monthly summary for Apache tika focusing on delivery, reliability, and strategic modernization across the codebase. Key features delivered and enhancements include broad dependency modernization (TIKA-4327) across core libraries (puppycrawl, Google Cloud, BouncyCastle, Kotlin, Microsoft Graph, msal4j, build-helper-maven-plugin, Azure, Netty, Commons FileUpload) and extensive dependency upgrades (AWS, Reactor Core, Jackson, Spring, Kotlin stdlib, Log4j) to align with security and performance requirements. Region handling improvements with autodetect parser integration (TIKA-4435) reduced NPE risk, corrected resource naming, tightened availability checks, and improved testing instrumentation. AWS integration enhancements (TIKA-4435) migrated to AWS SDK v2 and added related libraries and utilities, strengthening cloud readiness and scalability. Additional dependency cleanup and code-quality work (TIKA-4435 cleanup, TIKA-4327 deprecations replacement, and code cleanliness) reduced technical debt and improved maintainability.
May 2025
6 Commits • 2 Features
May 1, 2025May 2025 monthly summary for apache/tika: Focused on stabilizing and securing the codebase through broad dependency maintenance and a targeted readability improvement. Delivered six dependency-update commits under TIKA-4327 to patch Puppycrawl, Google Cloud, Azure, Netty, Spring Framework, Microsoft Graph, Mockito, and Kotlin, plus a dedicated commit to add in-code comments for clarity. These non-user-facing changes reduce security risk, improve compatibility with downstream systems, and enhance long-term maintainability. No new user-visible features were released this month, but the groundwork significantly lowers the risk of supply-chain vulnerabilities and paves the way for future feature work. Technical activities demonstrate strong ability in dependency management, risk reduction, and documentation practices.
6 Commits • 2 Features
May 1, 2025May 2025 monthly summary for apache/tika: Focused on stabilizing and securing the codebase through broad dependency maintenance and a targeted readability improvement. Delivered six dependency-update commits under TIKA-4327 to patch Puppycrawl, Google Cloud, Azure, Netty, Spring Framework, Microsoft Graph, Mockito, and Kotlin, plus a dedicated commit to add in-code comments for clarity. These non-user-facing changes reduce security risk, improve compatibility with downstream systems, and enhance long-term maintainability. No new user-visible features were released this month, but the groundwork significantly lowers the risk of supply-chain vulnerabilities and paves the way for future feature work. Technical activities demonstrate strong ability in dependency management, risk reduction, and documentation practices.
May 2025
April 2025
25 Commits • 4 Features
Apr 1, 2025April 2025 (2025-04) monthly summary for Apache Tika. Focused on code quality, dependency modernization, test instrumentation, and reliability. Key outcomes include a maintainable refactor, updated libraries for compatibility and security, added test coverage visibility via Jacoco, and targeted bug fixes to improve file handling and conformance testing. These efforts reduce technical debt, improve build stability, and enable faster, safer feature delivery.
April 2025
25 Commits • 4 Features
Apr 1, 2025April 2025 (2025-04) monthly summary for Apache Tika. Focused on code quality, dependency modernization, test instrumentation, and reliability. Key outcomes include a maintainable refactor, updated libraries for compatibility and security, added test coverage visibility via Jacoco, and targeted bug fixes to improve file handling and conformance testing. These efforts reduce technical debt, improve build stability, and enable faster, safer feature delivery.
March 2025
21 Commits • 3 Features
Mar 1, 2025March 2025 (2025-03) focused on stabilizing and modernizing Apache Tika through broad dependency updates, CI risk mitigation, and code quality improvements. Key outcomes include improved library compatibility, reduced CI risk, and clearer maintainability, enabling faster delivery of features and safer production deployments across the Tika codebase.
21 Commits • 3 Features
Mar 1, 2025March 2025 (2025-03) focused on stabilizing and modernizing Apache Tika through broad dependency updates, CI risk mitigation, and code quality improvements. Key outcomes include improved library compatibility, reduced CI risk, and clearer maintainability, enabling faster delivery of features and safer production deployments across the Tika codebase.
March 2025
February 2025
15 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for apache/tika: Delivered a new Azure XML parser (azure-xml) to improve robustness of XML processing and mitigate potential convergence issues. Conducted comprehensive dependency stability and convergence hardening across core libraries (JUnit 5, Netty, Azure, AWS SDK, etc.), including gradual updates, exclusions, and management to address convergence risks. Improved in-code documentation to reflect current dependency management practices. These efforts reduce release risk, improve security posture, and prepare the project for smoother future releases.
February 2025
15 Commits • 1 Features
Feb 1, 2025February 2025 monthly summary for apache/tika: Delivered a new Azure XML parser (azure-xml) to improve robustness of XML processing and mitigate potential convergence issues. Conducted comprehensive dependency stability and convergence hardening across core libraries (JUnit 5, Netty, Azure, AWS SDK, etc.), including gradual updates, exclusions, and management to address convergence risks. Improved in-code documentation to reflect current dependency management practices. These efforts reduce release risk, improve security posture, and prepare the project for smoother future releases.
January 2025
24 Commits • 3 Features
Jan 1, 2025January 2025 monthly summary for apache/tika: Executed comprehensive dependency modernization and deprecation cleanup, improving compatibility, security, and maintainability across modules. Delivered TIKA-4327 dependency updates and associated deprecation cleanup, replaced deprecated usages (TIKA-4326), and a targeted refactor (TIKA-4363) to simplify structure. Coordinated cross-module library upgrades (bc, reactor, jackrabbit, grpc, spring, pdfbox, microsoft-graph, jetbrains annotations, solrj, protobuf, puppycrawl, google cloud, commons-codec, gson) to align with current and upcoming ecosystems. Updated tests and containers to reflect new APIs and configurations, and tidied code comments for long-term clarity.
24 Commits • 3 Features
Jan 1, 2025January 2025 monthly summary for apache/tika: Executed comprehensive dependency modernization and deprecation cleanup, improving compatibility, security, and maintainability across modules. Delivered TIKA-4327 dependency updates and associated deprecation cleanup, replaced deprecated usages (TIKA-4326), and a targeted refactor (TIKA-4363) to simplify structure. Coordinated cross-module library upgrades (bc, reactor, jackrabbit, grpc, spring, pdfbox, microsoft-graph, jetbrains annotations, solrj, protobuf, puppycrawl, google cloud, commons-codec, gson) to align with current and upcoming ecosystems. Updated tests and containers to reflect new APIs and configurations, and tidied code comments for long-term clarity.
January 2025
December 2024
33 Commits • 7 Features
Dec 1, 2024December 2024 monthly summary for apache/tika focusing on the key deliveries, fixes, and impact across the TIKA-4327 upgrade cycle and related work.
December 2024
33 Commits • 7 Features
Dec 1, 2024December 2024 monthly summary for apache/tika focusing on the key deliveries, fixes, and impact across the TIKA-4327 upgrade cycle and related work.
November 2024
21 Commits • 4 Features
Nov 1, 2024November 2024 performance highlights for Apache Tika: focused maintenance and upgrade work to strengthen build reliability, compatibility, and developer velocity. Delivered cross-repo dependency cleanups, broad library updates across subsystems, and targeted code hygiene improvements. Also fixed convergence-related issues by removing a problematic kiota dependency, reducing risk of upgrade drift and runtime conflicts. Result: a more maintainable, resilient codebase with clearer upgrade paths and fewer build-time conflicts.
21 Commits • 4 Features
Nov 1, 2024November 2024 performance highlights for Apache Tika: focused maintenance and upgrade work to strengthen build reliability, compatibility, and developer velocity. Delivered cross-repo dependency cleanups, broad library updates across subsystems, and targeted code hygiene improvements. Also fixed convergence-related issues by removing a problematic kiota dependency, reducing risk of upgrade drift and runtime conflicts. Result: a more maintainable, resilient codebase with clearer upgrade paths and fewer build-time conflicts.
November 2024
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Quality Metrics
Correctness91.0%
Maintainability91.0%
Architecture88.8%
Performance87.0%
AI Usage20.4%
Skills & Technologies
Programming Languages
JavaKotlinScalaXMLYAML
Technical Skills
API DevelopmentAPI IntegrationAPI RefactoringAPI integrationAWSAWS SDKApache Commons CLIApache Commons CSVAzure SDK integrationAzure integrationBackend DevelopmentBug FixingBuild AutomationBuild ConfigurationBuild Engineering
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline