LFS plugin broken on Gerrit 3.13 — IncompatibleClassChangeError (Project.NameKey)

[Valerii Zherebtsov]

Description:

LFS plugin fails on Gerrit 3.13 with a runtime error caused by an internal API change in com.google.gerrit.entities.Project.NameKey.
The plugin throws IncompatibleClassChangeError when accessing any LFS endpoint (e.g. /lfs~lfs:config-project).

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Steps to Reproduce:

1. Deploy Gerrit 3.13.

2. Install the current LFS plugin (plugins/lfs built from upstream).

3. Access any LFS REST endpoint such as:

   GET /projects/<project>/lfs~lfs:config-project

4. Observe Gerrit logs.

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Expected Result:

LFS plugin should load normally and allow project LFS configuration requests without error.

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Actual Result:

The following error appears in the Gerrit logs:

java.lang.IncompatibleClassChangeError: Found interface com.google.gerrit.entities.Project$NameKey, but class was expected at com.googlesource.gerrit.plugins.lfs.LfsProjectsConfig.getForProject(LfsProjectsConfig.java:75)

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Additional Information:

• The issue occurs because Project.NameKey was refactored from a class to an interface in Gerrit 3.13.

• Updating the plugin code to use Project.nameKey(...) and resource.getNameKey() resolves the issue locally.

• Requesting creation of a stable-3.13 branch or an official rebuild of the LFS plugin for Gerrit 3.13.

[Luca Milanesio]

Hi Valerii,

Thanks for your report, this isn’t a ticketing system or an enterprise support channel, but a mailing list where people are helping each other.

Can you please report this issue in the Gerrit Code Review issue tracker at [1]?

From the additional information, I see you’ve fixed the issue already.

You can simply create a change for review on [2].

HTH

Luca.

[1] https://issues.gerritcodereview.com/home

[2] https://gerrit-review.googlesource.com/

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[cdesai]

Fixed with a plugin rebuild, as noted in https://issues.gerritcodereview.com/issues/456225708

However, be sure to re-download the latest version, the plugin manager doesn't pick up the update as noted in #3 above.