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Bug
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Resolution: Unresolved
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Major
Recently, I started trying Github's CoPilot feature of implementing a ticket (feature).
After having at least one open Copilot PR, the Github multibranch job started to fail to scanning the repository (see stack trace below).
As it appears, the reason behind this is that Github introduced a new pseudo user called `Copilot` that doesn't have a presence in their api under https://api.github.com/users/Copilot which makes it fail.
Why am I setting this to Major? because breaking the scan loop there ended up in not removing orphan items (closed or merged PRs) causing the used space to rise over the time until it blocks Jenkins from working properly.
Interestingly, seems like the code was intended to skip instead of failing according to code comments but ended up throwing an exception (see code block).
How to fix this? I see 2 solutions to be applied:
- First, in case of failure, we should skip and warn as the code comment says.
- Second, we need to have some way to handle such pseudo user but without allowing it to run CI unless the PR is approved (to avoid any unexpected behavior from an AI bot written code).
Examining [ORG_NAME]/[REPO_NAME] Checking branches... Getting remote branches... Checking branch master Getting remote pull requests... Could not find user Copilot for pull request [PR_NUMBER]. ERROR: [Thu Jul 31 06:38:27 PDT 2025] Could not fetch branches from source org.jenkinsci.plugins.github_branch_source.GitHubSCMNavigator::https://api.github.com::[ORG_NAME]::[REPO_NAME] [Thu Jul 31 06:38:27 PDT 2025] Finished branch indexing. Indexing took 12 sec FATAL: Failed to recompute children of [PROJECT_NAME] » [REPO_NAME] java.io.FileNotFoundException: https://api.github.com/users/Copilot at PluginClassLoader for github-api//org.kohsuke.github.GitHubConnectorResponseErrorHandler$1.onError(GitHubConnectorResponseErrorHandler.java:68) at PluginClassLoader for github-api//org.kohsuke.github.GitHubClient.detectKnownErrors(GitHubClient.java:504) at PluginClassLoader for github-api//org.kohsuke.github.GitHubClient.sendRequest(GitHubClient.java:464) Caused: org.kohsuke.github.GHFileNotFoundException: https://api.github.com/users/Copilot {"message":"Not Found","documentation_url":"https://docs.github.com/rest","status":"404"} at PluginClassLoader for github-api//org.kohsuke.github.GitHubClient.interpretApiError(GitHubClient.java:735) at PluginClassLoader for github-api//org.kohsuke.github.GitHubClient.sendRequest(GitHubClient.java:480) at PluginClassLoader for github-api//org.kohsuke.github.GitHubClient.sendRequest(GitHubClient.java:427) at PluginClassLoader for github-api//org.kohsuke.github.Requester.fetchInto(Requester.java:102) at PluginClassLoader for github-api//org.kohsuke.github.GHPerson.populate(GHPerson.java:60) at PluginClassLoader for github-api//org.kohsuke.github.GHPerson.getName(GHPerson.java:208) at PluginClassLoader for github-branch-source//org.jenkinsci.plugins.github_branch_source.GitHubSCMSource$LazyPullRequests$CacheUpdatingIterable.observe(GitHubSCMSource.java:2580) at PluginClassLoader for github-branch-source//org.jenkinsci.plugins.github_branch_source.GitHubSCMSource$LazyPullRequests$CacheUpdatingIterable.observe(GitHubSCMSource.java:2558) at PluginClassLoader for github-branch-source//org.jenkinsci.plugins.github_branch_source.SinglePassIterable$1.next(SinglePassIterable.java:91) at PluginClassLoader for github-branch-source//org.jenkinsci.plugins.github_branch_source.BranchDiscoveryTrait$ExcludeOriginPRBranchesSCMHeadFilter.isExcluded(BranchDiscoveryTrait.java:219) at PluginClassLoader for scm-api//jenkins.scm.api.trait.SCMSourceRequest.isExcluded(SCMSourceRequest.java:196) at PluginClassLoader for scm-api//jenkins.scm.api.trait.SCMSourceRequest.process(SCMSourceRequest.java:333) at PluginClassLoader for scm-api//jenkins.scm.api.trait.SCMSourceRequest.process(SCMSourceRequest.java:249) at PluginClassLoader for github-branch-source//org.jenkinsci.plugins.github_branch_source.GitHubSCMSource.retrieve(GitHubSCMSource.java:1070) at PluginClassLoader for scm-api//jenkins.scm.api.SCMSource._retrieve(SCMSource.java:372) at PluginClassLoader for scm-api//jenkins.scm.api.SCMSource.fetch(SCMSource.java:282) at PluginClassLoader for branch-api//jenkins.branch.MultiBranchProject.computeChildren(MultiBranchProject.java:660) at PluginClassLoader for cloudbees-folder//com.cloudbees.hudson.plugins.folder.computed.ComputedFolder.updateChildren(ComputedFolder.java:272) at PluginClassLoader for cloudbees-folder//com.cloudbees.hudson.plugins.folder.computed.FolderComputation.run(FolderComputation.java:170) at PluginClassLoader for branch-api//jenkins.branch.MultiBranchProject$BranchIndexing.run(MultiBranchProject.java:1063) at hudson.model.ResourceController.execute(ResourceController.java:101) at hudson.model.Executor.run(Executor.java:454)
