* [JENKINS-37332] - Improve diagnostics of non-closed streams during reading of the manifests in PluginManager

* [JENKINS-37332] - Leakless processing of JarUrlConnection during Manifest parsing

* [JENKINS-37332] - Also implement leak-safe method for retrieving file modification date

* [JENKINS-37332] - Add spotcheck methods for manifest file access + Javadoc

* [JENKINS-37332] - Also test multi-line and empty attributes in the test

(cherry picked from commit 96c97860)

* [FIXED JENKINS-35906] Ensure that SCMDescriptor.newInstance overrides are honored.

* [FIXED JENKINS-36043] Work around fragile form submission design in multi-branch-project-plugin.

(cherry picked from commit 1d176d1f)

(cherry picked from commit 4f530000)

(cherry picked from commit e5a728b3)

(cherry picked from commit d92fd4cc)

(cherry picked from commit 2a450e5a)

'{0}' is the literal string {0} in a message format - if you want to quote
the parameter then you need to use double single quotes ''{0}''
(cherry picked from commit 03750c92)

[JENKINS-35493] Introduce a UserDetails cache
(cherry picked from commit 06e99bd9)

- A pure unit tests will suffice

(cherry picked from commit 136aeb86)

- Also fixes to append `&uctest` if the update center URL already contains a query fragment

(cherry picked from commit b1e7c1bf)

* [FIXED JENKINS-34882] Honor non-default update sites during install

* Fix pluginSetupWizard tests

* Fix lint

(cherry picked from commit 83e0fbf0)

* [JENKINS-36908] Make sure that the All view is created

* Revert old All view behaviour

* Fix changed comment

* Tests

* Delete unwanted file.

(cherry picked from commit 404384ee)

* [JENKINS-36387] Catch exception when scm retry count field is empty.

* Add test for JENKINS-36387

* [JENKINS-36387] Move test in correct place

* [JENKINS-36387] Reproduce actuall behaviour

(cherry picked from commit 43942623)

(cherry picked from commit 8a330acc)

(cherry picked from commit ab26fdbe)

[JENKINS-36476] Underprivileged users could not use the default value of a password parameter (#2454)

* [FIXED JENKINS-36476] Do not even send the default password in encrypted form; leave the text field blank, and apply the default upon submission.

* [JENKINS-36476] Use a special token, not the empty string, as the marker for the default value.

(cherry picked from commit c31392d1)

[JENKINS-35098] Disable AutoBrowserHolder by default to improve the changelog rendering performance (#2371)

* [FIXED JENKINS-35098] Deleting AutoBrowserHolder.

* Normalizing form binding scheme for AbstractProject.scm.

* At @oleg-nenashev’s insistence, restoring AutoBrowserHolder, though not using it by default.

* Using SystemProperties at @oleg-nenashev’s recommendation.

(cherry picked from commit d33df0f2)

(cherry picked from commit 3956994c)

* [JENKINS-36593] - ItemCategory#MIN_TOSHOW should be restricted

* [JENKINS-36593] - Add Javadoc

(cherry picked from commit 4577cf6a)

[FIXED JENKINS-27530] Jenkins.reload must also reload the Queue to ensure that every Queue.Item.task corresponds to a live Job, lest nextBuildNumber be bogus.
(cherry picked from commit 12fd3e47)

(cherry picked from commit 1e170d43)

[FIXED JENKINS-35641] - Always send usage statistics over HTTPs to the new usage.jenkins.io hostname(#2398)

References INFRA-559
(cherry picked from commit 01db7d36)

Changes summary:

Fixed issues:
* [JENKINS-22722](https://issues.jenkins-ci.org/browse/JENKINS-22722) -
Make the channel reader tolerant against Socket timeouts.
(https://github.com/jenkinsci/remoting/pull/80)
* [JENKINS-32326](https://issues.jenkins-ci.org/browse/JENKINS-32326) -
Support no_proxy environment variable.
(https://github.com/jenkinsci/remoting/pull/84)
* [JENKINS-35190](https://issues.jenkins-ci.org/browse/JENKINS-35190)  -
Do not invoke PingFailureAnalyzer for agent=>master ping failures.
(https://github.com/jenkinsci/remoting/pull/85)
* [JENKINS-31256](https://issues.jenkins-ci.org/browse/JENKINS-31256) -
 <code>hudson.Remoting.Engine#waitForServerToBack</code> now uses credentials for connection.
(https://github.com/jenkinsci/remoting/pull/87)
* [JENKINS-35494](https://issues.jenkins-ci.org/browse/JENKINS-35494) -
Fix issues in file management in <code>hudson.remoting.Launcher</code> (main executable class).
(https://github.com/jenkinsci/remoting/pull/88)

Enhancements:
* Ensure a message is logged if remoting fails to override the default <code>ClassFilter</code>.
(https://github.com/jenkinsci/remoting/pull/80)
(cherry picked from commit c718516a)

(cherry picked from commit 7acfbec4)

follow-up for JENKINS-34751

(cherry picked from commit 96a78285)

(cherry picked from commit 9657629d)

[FIXED JENKINS-31915] Proxy settings in plugins page are ignored
(cherry picked from commit 81e00cc6)

See https://github.com/jenkinsci/windows-slave-installer-module/pull/3

(cherry picked from commit 57e98ad7c967da06c1beb63956a1724571387a9f)