8283756: (zipfs) ZipFSOutputStreamTest.testOutputStream should only check inflated bytes

[simonis]

The test ZipFSOutputStreamTest deflates content into a zip file system and subsequently inflates the deflated files and checks their content against the original data.

The content consists of a data stream of bytes with the value 42.

The check currently compares the temporary inflation buffer with the original source buffer, no matter how many bytes were inflated into the inflation buffer. This can lead to problems with alternative zlib implementations which sometimes write beyond the last inflated byte (see JDK-8282648 for more details).

The fix is trivial. Only compare as many bytes as have been inflated against the original content.

---

Progress

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Issue

• JDK-8283756: (zipfs) ZipFSOutputStreamTest.testOutputStream should only check inflated bytes

Reviewers

• Jaikiran Pai (@jaikiran - Committer) ⚠️ Review applies to 6f121a2
• Alan Bateman (@AlanBateman - Reviewer) ⚠️ Review applies to 6f121a2
• Lance Andersen (@LanceAndersen - Reviewer)

Reviewing

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[bridgekeeper]

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[mlbridge]

Webrevs

• 02: Full - Incremental (814a2f56)
• 01: Full - Incremental (810369c7)
• 00: Full (6f121a22)

[jaikiran]

Thank you for catching this, Volker. The change looks fine to me.

[AlanBateman]

This looks okay.

[openjdk]

@simonis This change now passes all automated pre-integration checks.

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

After integration, the commit message for the final commit will be:

8283756: (zipfs) ZipFSOutputStreamTest.testOutputStream should only check inflated bytes

Reviewed-by: jpai, alanb, lancea

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At the time when this comment was updated there had been 3 new commits pushed to the master branch:

• f4eaa16: 8283728: jdk.hotspot.agent: Wrong location for RISCV64ThreadContext.java
• cdef087: 8283727: P11KeyGenerator has import statement with two semicolons after JDK-8267319
• 7f12537: 8283558: Parallel: Pass PSIsAliveClosure to ReferenceProcessor constructor

Please see this link for an up-to-date comparison between the source branch of this pull request and the master branch.
As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid this automatic rebasing, please check the documentation for the /integrate command for further details.

➡️ To integrate this PR with the above commit message to the master branch, type /integrate in a new comment.

[simonis]

/integrate

[openjdk]

Going to push as commit 0c472c8.
Since your change was applied there have been 5 commits pushed to the master branch:

• d6fa8b0: 8283469: Don't use memset to initialize members in FileMapInfo and fix memory leak
• 8567266: 8283683: Make ThreadLocalRandom a final class
• f4eaa16: 8283728: jdk.hotspot.agent: Wrong location for RISCV64ThreadContext.java
• cdef087: 8283727: P11KeyGenerator has import statement with two semicolons after JDK-8267319
• 7f12537: 8283558: Parallel: Pass PSIsAliveClosure to ReferenceProcessor constructor

Your commit was automatically rebased without conflicts.

[openjdk]

@simonis Pushed as commit 0c472c8.

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