It is require to make the tests passing on Java 11, but apparently it also speeds up tests on Java 8.

* [JENKINS-53693] - Update PowerMock and Mockito to a Java11-compatible version

* [JENKINS-53693] - Fix tests which depend on mocking

* [JENKINS-53693] - Apply fixes to PowerMock

* [JENKINS-46205] ZipArchiver support 64 bit files

call setUseZip64(Zip64Mode.AsNeeded)

* [JENKINS-46205] ZipArchiver support 64 bit files

Update test to assume it means insufficient disk space and skip

- also add translation for another creationDate
- and manage correctly the null creation date instead of 0

- in case of migration we put null instead of now
- improve also the difference in days for the Xxx day(s) ago to take calendar day in difference and not the total duration (<24h = 0 days, which seems wrong in UI)

* [JENKINS-51779] Avoid com.google.common.collect.Iterators.skip.

* Reviewers preferred for the new method to be restricted for now.

(cherry picked from commit a846c366)

* [JENKINS-51779] Avoid com.google.common.collect.Iterators.skip.

* Reviewers preferred for the new method to be restricted for now.

* JENKINS-13128: Preserve copied file permissions and mtime

This fixes a bug where files copied locally do not preserve file permissions or last modification time.

* Use IO utility methods for exception handling

* Fix invalid path exception propagation

* Revert hudson.Util

* JENKINS-50412 - Fingerprints logs should be less verbose

Eliminate the logging line that says
possibly trimming /var/jenkins_home/fingerprints/[...]
This line fills up the fingerprints log file with repetitive, useless information.
The operation it calls provides its own logging that can be turned on if detailed
logging is actually needed instead of running this one repeatedly.

Also, while in the area, convert a couple of FileFilter inner classes to lambdas
and inline them. This reduces unnecessary boilerplate and improves clarity.

In order to make this change testable, I elected to remove the final restriction on the
class and annotate the class as restricted. This allows me to create unit tests for
this change and also verify existing capability at the appropriate level.

* Watch out for varying line endings.

Use a reliable check.

* Correct a few minor issues caught in review.

* Change to correct access modifier.

Parent loggers will be suggested in auto completion iff they
include two or more child, grand-child, etc. loggers, and there
is no more specific parent logger that includes the same number
of descendants.

(cherry picked from commit 3a81319c)

* [JENKINS-48407] Re-enable test

The previous test assumed permissions would always be the same,
when they actually depend on umask settings.

This change creates a file *not* using the temporary API, gets its
permissions then compares it to the ones obtained using
AtomicFileWriter.

Note: we now only check the given permissions, not the "non-given".

* Use assertThat(..., equalTo()) instead of a manual loop

* Remove unused imports

* Use TemporaryFolder instead of manual temporary dir creation

* Introduced ACL.lambda convenience method.

* Javadoc

file handle cleanup in the event of failure

Fixed small nits regarding typo's and code cleanup
Added comment explaining why Xpp3 is still included as a dep

Note: this test is wrong, the production code is correct.
So that is why disabling this test until we fix it is OK.

new default driver

KXml2Driver being tolerant of control characters which should be illegal
in an XML v1.0 content.  This test should be revisted if we switch to
another XML driver

technically illegal xml (ie. it doesn't complain if an Xml v1.0 file
contains special characters).  Added a unit test that proves this, as well
as fixing silentlyMigrateConfigsTest so that it starts with technically
valid Xml 1.0 content

are silently migrated to xml v1.1 as they are persisted

  - verify can still read xml 1.0
  - verify can read xml 1.1
  - verify can read xml 1.1 with 'special' characters
  - verify that jenkins can start with a config.xml having
    <?xml version='1.1'> and special characters

Changed all explicit references of the hierarchical driver to use a static
convinience method XStream2.getDefaultDriver() to ensure all XML operations
are using the same driver.

  - switched to KxmlDriver (needed for xml 1.1 support)
  - updated to create xml v1.1 headers
  - updated test to use KXml2Driver explicitly
  - updated unit tests to support xml v1.1

[JENKINS-49054] Work around XStream bug by looking up list type before trying to unmarshal elements.

The goal here is to:
* be able to selectively choose performance over integrity in some very
  specific cases
* be able to globally disable AtomicFileWriter integrity, and basically
  revert to previous behaviour by setting a system property.
  This flag is meant as an emergency one in case something goes very
  wron on some production system.

* Use "Files.createTempDirectory" to create temp directory instead
See SonarQube critical vulnerability squid:S2976 (tag: owasp-a9)
https://next.sonarqube.com/sonarqube/coding_rules#rule_key=squid%3AS2976

* [JENKINS-48227]
Creating a utility "static Path toPath(File file) throws IOException" method,
which wraps InvalidPathException to IOException so that it will be checked.
- also fixed public static final reference
- fixed broken test cases
- added new test cases for toPath() and createTempDir()

* Revert back to public static int

* adjustments due to merges

* Add posix check to determine if Posix FileAttributes should be included
in call to Files.createTempDirectory()

* Remove reference to private element

* Updated to use explicit imports

* Use NIO in tryOnceDeleteFile and makeWritable

* Don't try to set PosixFileAttributes on Windows

* Do not create arbitrary exceptions in makeWritable to fix test failures on Windows

* Remove unhelpful layer of exception wrapping

* Add test exercising Util#makeWritable in Util#tryOnceDeleteFile

* Add test for deleting a non-existant file

* Return early if changing permissions with NIO succeeds

Making nullOut behavior opt-in, so limiting to AbstractItem and View (and in particular not Jenkins).