* Move detached plugins logic into a dedicated class

ClassicPluginStrategy is already long enough, so trying to make things a
bit more focused before adding Java 11 logic. (and even if not, the change
still splits a class that is almost 1k lines).

* Install jaxb as detached only on Java 11+

* Remove duplicate @Restricted

Given the enclosing class already has it.

* Use 1.5 release

* Add more test coverage

* getMinJavaVersion => getMinimumJavaVersion

* Rename DetachedPluginsManager as DetachedPluginsUtil

as requested by Oleg and Jesse. Mainly because of the misleading
relationship (there's no inheritance) with the existing `PluginManager`
class.

* 🤦 adjust to 1.5 release method renaming

* Clarify minimum Java version column
Co-Authored-By: Nbatmat <bmathus@gmail.com>

* Update to 2.3.0 version of the jaxb plugin

* Bump minimum core version to next expected release version

* Add preventive cycle breaks for jaxb while waiting for JENKINS-28942

As requested by Oleg.

* Add test to fail fast on wrong format for split-plugins.txt

JENKINS-53077 - don't process empty responseText

Test cases for JENKINS-22566

[JENKINS-47530] Add null check to RunParameterDefinition#getProject()…

* [JENKINS-55049] Avoid NumberFormatException when a symlink is used as artifact
- display a "0 B" instead of nothing + exception thrown

* Different approach to cover all the specific cases of Long.decode

* Update core/src/main/java/hudson/model/Run.java
Co-Authored-By: NWadeck <Wadeck@users.noreply.github.com>

* Add test for length check

[JENKINS-49588] add readResolve method for 'usages' in Fingerprint.java

* Delete log recorder named

* Delete agent

* Delete build number

* Disconnect computer

* Delete user

* Delete view

* Do you want to restart Jenkins

* Are you sure you want to restart Jenkins

* Delete the x y

* Delete build

Adding test coverage for BuildAuthorisationToken

* Bulk cleanup of hudson.slaves and jenkins.slaves

- [x] Use Jenkins.get() instead of the deprecated getInstance()
- [x] Remove unused imports
- [x] Use diamond type definitions where possible
- [x] Squash similar extension handlers
- [x] Other minor refactorings and NPE checks

* Update core/src/main/java/hudson/slaves/SlaveComputer.java

Replacing text references of "slave" with "agent"

* [JENKINS-48985] - Old Data Monitor Data Safety

* [JENKINS-48985] - Address comments from @jglick

Avoid archiving any test-related artifacts

grammar: bring

* Centralize Descriptor extension list retrieval in DescriptorExtensionList

* Switch to protected way of retrieving ExtensionList

* [JENKINS-55361] Correct DescriptorExtensionList lock to match Descriptor ExtensionList

* [JENKINS-55361] - Add comment to explain using the custom lock (and to retrigger CI)

https://en.oxforddictionaries.com/usage/bring-or-take

> The essential difference between these two words is that bring implies movement towards someone or something

> Whereas take implies movement away from someone or something

Installation wizard: replaced analysis plugins with Warnings Next Generation Plugin

Improvements for translation-tool.pl

* Default methods for RootAction
- reduce code in tests

* - simplification of some existing tests

* - change from RootAction to Action

* - change from Action to a new DefaultRootAction

* using InvisibleAction with the final removed

* adapting the javadoc of InvisibleAction and so remove the usage for non-test class

* [JENKINS-48220] Avoid recursive search for a given view/folder

* Moved to the JenkinsRule

* Moved commented code as JenkinsFile

Bulk cleanup of code in hudson.cli.

Address quiet period edge case (???)

* Add 'smoke-test' JUnit Category [JENKINS-53925]

* Update test-annotations version to 1.3

* Use org.jvnet.hudson.test.SmokeTest

* Try to clarify the message

Key points:
A. We aren't changing the remote update site
B. It's probably possible for this code to forget an ignore if you follow this process:
 
1. suppress a warning for plugin-x-warning-y
2. disable plugin-x
3. suppress a different warning
4. reenable plugin-x

* Trying to clarify where the warnings appear

* incorporating feedback from daniel

markdown

[FIXED JENKINS-54903] Ensure the authenticator is created on load path also

Optimize FilePath.readToString