[FIX JENKINS-39700] Don't fail when no parameters property for job

[JENKINS-39300] View.getDisplayName() is ignored when rendering tabs

[JENKINS-40281] Do not try to mutate the result of getActions(Class)

* [FIX JENKINS-36044]: Added default locale to XMLUtilsTest so that it runs independent from the host OS locale.

* [FIX JENKINS-36044]: Cleanup default-locale after test, to avoid impact to other tests.

*  [FIX JENKINS-36044]: Make test language indepedent.

* [FIX JENKINS-36044]: Cleanup unused imports.

Annotate localizer generated Messages classes with NoExternalUse

Test plugin wrapper

* Make sure Security218BlackBoxTest cleans up threads it starts.

* Some code simplifications, and possible leak fixes, based on CLI now being AutoCloseable.

* Obsolete comment.

* Converted to JenkinsRule.

* Improved messages from Node.canTake.

* [FIXED JENKINS-38514] BuildableItem needs to retain information from JobOffer about why it is neither blocked nor building.

* Converted to JenkinsRule.

* Found an existing usage of BecauseNodeIsNotAcceptingTasks.

* Original JENKINS-6598 test was checking behavior we want amended by JENKINS-38514.

* Ensure that a BuildableItem which is simply waiting for a free executor reports that as its CauseOfBlockage.

* Review comments from @oleg-nenashev.

- This means we can default the migration to enabled

UserProperty may contain nested objects that depend on User. 
On User reconfiguration setUser(User) is called so it should be non-final to have ability override it and update references in nested objects.
Signed-off-by: NKanstantsin Shautsou <kanstantsin.sha@gmail.com>

Also update to localizer 1.24 which adds support for this.

[JENKINS-23271] - Process statuses of Remote process join() operations directly inside methods (#2653)

* [JENKINS-23271] - Process statuses of Remote process join() operations directly inside methods

* [JENKINS-23271] - Also prevent the issue when the kill() command is the last call in the usage sequence

Clarify hudson.Extension#ordinal documentation

I have to read it many times each time I need it. Hopefully
it's a bit clearer with this addition.

Be able to specify the log Level when system property is not found