[JEP-230] [JENKINS-55582] Test instance-identity as a detached plugin

[jglick]

Checking how much mayhem jenkinsci/jenkins#6585 wreaks on PCT. Could either solve with a new PCT hook, or just by updating a handful of plugins after the fact to depend on the new baseline. As per #681 we cannot update the BOM until the oldest supported line has the split.

[jglick]

Oops, forgot to turn off failFast.

[jglick]

Some problems with PCT relating to the detached sshd bump in core.

java.io.IOException: Failed to load: Pipeline: API (workflow-api 1143.v2d42f1e9dea_5)
 - Failed to load: Pipeline: Step API (workflow-step-api 622.vb_8e7c15b_c95a_)
 - Update required: SSH server (sshd 3.228.v4c9f9e652c86) to be updated to 3.236.ved5e1b_cb_50b_2 or higher

Not following what is happening here, since #1150 and #1151 already updated this in the BOM.

[jglick]

Probably jenkinsci/jenkins@d96d64b is interacting poorly with PCT?

[jglick]

In the case of pipeline-graph-analysis, mvn dependency:tree shows that the old version of sshd is in the test classpath:

org.jenkins-ci.plugins:pipeline-graph-analysis:hpi:999999-SNAPSHOT
+- …
+- org.jenkinsci.plugins:pipeline-model-definition:jar:1.9.3:test
|  +- …
|  +- org.jenkins-ci.plugins.workflow:workflow-cps-global-lib:jar:570.v21311f4951f8:test
|  |  +- …
|  |  +- org.jenkins-ci.plugins:git-server:jar:1.10:test
|  |  |  \- org.jenkins-ci.modules:sshd:jar:3.228.v4c9f9e652c86:test
|  |  |     +- …
|  |  \- …
|  +- …
+- …

[jglick]

(Possibly a case that #1059 would handle better.)

[jglick]

No longer useful I think.