[JIRA] (JENKINS-60449) Optional extensions can blow up Jenkins

vincent@latombe.net (JIRA)

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Dec 11, 2019, 12:48:02 PM12/11/19

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Vincent Latombe created an issue

Jenkins /

JENKINS-60449

Optional extensions can blow up Jenkins

Issue Type:	Bug
Assignee:	Unassigned
Components:	core
Created:	2019-12-11 17:47
Priority:	Minor
Reporter:	Vincent Latombe

If you have an optional extension (using the variant plugin) that is defining a private static method which has in its signature a type from its optional dependency, then Guice will blow up when attempting to load it, causing every subsequent extensions to fail loading.

Upon loading a new extension, the ExtensionFinder scans for potential classloading problems but doesn't catch all cases.

Additionally, I have found that when you load a plugin dynamically, extensions are refreshed before classloader of existing plugins have been updated which lead to having Guice trying to load classes without having the right classloading.