Add getL and getStreamLength methods to PDInlineImage

[LonelyMidoriya]

Summary by CodeRabbit

• Bug Fixes

  • Improved inline image parsing by removing unintended trailing whitespace from image data.
  • Preserved accurate inline image stream length information for downstream processing.

• Enhancements

  • Added access to inline image length metadata and stream size for improved image data handling.

[coderabbitai]

📝 Walkthrough

Walkthrough

Inline image parsing now removes one trailing whitespace byte from collected data. PDInlineImage records the stream length and exposes both the dictionary LENGTH value and stored stream length.

Changes

Inline image handling

Layer / File(s)	Summary
Stream trimming and length metadata src/main/java/org/verapdf/parser/PDFStreamParser.java, src/main/java/org/verapdf/pd/images/PDInlineImage.java	Trailing whitespace is removed from inline image data, while PDInlineImage accepts, stores, and exposes stream length metadata and the dictionary LENGTH value.

Estimated code review effort: 2 (Simple) | ~10 minutes

Suggested reviewers: maximplusov

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately reflects the main change: adding getL and getStreamLength to PDInlineImage.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch l-key

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@src/main/java/org/verapdf/parser/PDFStreamParser.java`:
- Around line 284-289: Guard the trailing-whitespace removal in the inline-image
parsing flow with imageEndFound, so the cleanup executes only after a valid EI
terminator is detected. Update the block following the image collection logic in
PDFStreamParser and preserve the full payload when parsing ends at EOF without a
terminator.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 1da93283-e781-4766-9116-953f4a33796e

📥 Commits

Reviewing files that changed from the base of the PR and between ab43cc9 and 805578c.

📒 Files selected for processing (2)

• src/main/java/org/verapdf/parser/PDFStreamParser.java
• src/main/java/org/verapdf/pd/images/PDInlineImage.java