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Jacobo Aragunde Pérez

PROFILE

Jacobo Aragunde Pérez

During three months contributing to apache/poi, Jaragunde enhanced Word document processing by building new API features and addressing core stability issues. He improved table formatting and alignment, introduced safer handling of embedded media, and exposed internal XML data to users for better integration and debugging. Using Java and Apache POI, he implemented lazy text extraction for structured document tags and ensured table width handling aligned with OOXML specifications, preventing runtime errors. His work included comprehensive unit testing and careful API design, resulting in more robust document processing and increased reliability for downstream users working with complex XML-based DOCX files.

Overall Statistics

Feature vs Bugs

67%Features

Repository Contributions

8Total
Bugs
2
Commits
8
Features
4
Lines of code
425
Activity Months3

Work History

October 2025

1 Commits

Oct 1, 2025

Month: 2025-10. Focused on stabilizing Word document processing in Apache POI. Implemented a robust fix for XWPFTable width handling: when a document lacks explicit table width, the width type now defaults to AUTO per OOXML spec, preventing NullPointerException in XWPFTable.getWidthType(). Added targeted tests to verify behavior for documents without explicit table width settings. This reduces runtime crashes, improves compatibility with legacy and mixed-docs, and enhances overall reliability of POI's Word processing features.

September 2025

1 Commits • 1 Features

Sep 1, 2025

September 2025: API usability enhancement in Apache POI by exposing internal XML bean getters in XWPFDefaultParagraphStyle and XWPFDefaultRunStyle. This change makes underlying data accessible to library users, reducing the need for workarounds and enabling more robust data extraction and debugging. Implemented via the commit that publicizes XML bean getters: 7a124135dec06e658a1d7788091dc4c2ec73d575 (Make getters public for XML beans in XWPF*Style). No major bug fixes recorded for this month; focus was on delivering tangible API improvements and improving downstream flexibility.

July 2025

6 Commits • 3 Features

Jul 1, 2025

July 2025 highlights for apache/poi: Fixed null handling in XWPFParagraph alignment and clarified explicit vs inherited alignment behavior to eliminate rendering inconsistencies. Extended table formatting capabilities with table indentation getters/setters and support for all valid alignment values (including left/right), accompanied by tests. Introduced API-safe SDT improvements with new getters for CTSdt(Content)Cell and delayed text extraction to optimize for XML-only access. Enhanced embedded media handling in runs by adding getEmbeddedCharts() and returning unmodifiable lists for charts and pictures to prevent unsafe mutations. These changes collectively improve formatting fidelity, performance on large documents, and overall API safety.

Activity

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Quality Metrics

Correctness100.0%
Maintainability100.0%
Architecture100.0%
Performance97.4%
AI Usage20.0%

Skills & Technologies

Programming Languages

Java

Technical Skills

API DesignApache POIBug FixingDocument ProcessingJavaJava DevelopmentLibrary DevelopmentOOXMLUnit TestingXMLXML Processing

Repositories Contributed To

1 repo

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

apache/poi

Jul 2025 Oct 2025
3 Months active

Languages Used

Java

Technical Skills

API DesignApache POIBug FixingDocument ProcessingJavaJava Development

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