[JENKINS-37545] Manual installation of plugins in Jenkins2 does not follow detached plugins · jenkinsci/jenkins#17450

2016-08-19T11:27:00.000Z

Ownership 0.5 depends on the code, which has been decoupled to Matrix Auth plugin. When I deploy the plugin manually, I get an installation error. --- Originally reported by oleg_nenashev , imported from: Manual installation of plugins in Jenkins2 does not follow detached plugins status : Open priority : Major component(s) : core label(s) : newbie-friendly resolution : Unresolved votes : 1 watchers : 3 imported : 2025-11-24 Raw content of original issue Ownership 0.5 depends on the code, which has been decoupled to Matrix Auth plugin. When I deploy the plugin manually, I get an installation error. environment ``` jenkins-2.16 ownership-0.5 ``` 1 attachment - [Screen Shot 2016-08-19 at 13.24.21.png](https://raw.githubusercontent.com/jenkinsci/attachments-from-jira-issues-core-cli/refs/heads/main/attachments/33655/Screen%20Shot%202016-08-19%20at%2013.24.21.png) > ![Screen Shot 2016-08-19 at 13.24.21.png](https://raw.githubusercontent.com/jenkinsci/attachments-from-jira-issues-core-cli/refs/heads/main/attachments/33655/Screen%20Shot%202016-08-19%20at%2013.24.21.png)

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component:coregood first issueimported-jira-issuepriority:majorresolution:unresolved

説明

jenkins-2.16<br/>
ownership-0.5

Screen Shot 2016-08-19 at 13.24.21.png

コントリビューターガイド

技術スタック: java
領域: backenddevops
Issue 種別: bug
難度: 3
推定時間: 1-2 days
活動状況: stale
明確さ: mostly clear
前提条件: Basic Jenkins knowledgeJava programmingUnderstanding of plugin dependencies
初心者向け度: 60
調査方針: The issue describes a bug where manual plugin installation in Jenkins 2 does not handle detached plugins, causing an installation error when deploying the Ownership plugin which depends on code decoupled to the Matrix Auth plugin. To reproduce, look at the plugin installation mechanism in the Jenkins core, specifically the PluginManager class and its handling of dependencies. The maintainer should investigate how detached plugins are resolved during manual upload vs. automatic installation. The report mentions ownership 0.5 and Jenkins 2.16; the test environment and error screenshot are attached. Start by examining the code path for manual plugin installation, particularly the update center logic and how missing dependencies are handled. No linked PRs or assignees, so the issue is open for contribution.