Forgot to add env to the close repo step

* 3.x: Action cache clear, limit environmental variables

* No secrets for PRs

Bumps [actions/cache](https://github.com/actions/cache) from v2.1.4 to v2.1.5.
- [Release notes](https://github.com/actions/cache/releases)
- [Commits](https://github.com/actions/cache/compare/v2.1.4...1a9e2138d905efd099035b49d8b7a3888c653ca8)
Signed-off-by: Ndependabot[bot] <support@github.com>
Co-authored-by: Ndependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

There are two breaking changes between v1 and v2. v2 requires a
java distribution be specified. 'adopt' for AdoptOpenJDK has been
selected. v2 has also dropped support for legacy Java version syntax, so
'1.8' must be become '8'.

Bumps [testng](https://github.com/cbeust/testng) from 7.3.0 to 7.4.0.
- [Release notes](https://github.com/cbeust/testng/releases)
- [Changelog](https://github.com/cbeust/testng/blob/master/CHANGES.txt)
- [Commits](https://github.com/cbeust/testng/compare/7.3.0...7.4.0)
Signed-off-by: Ndependabot[bot] <support@github.com>
Co-authored-by: Ndependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [actions/cache](https://github.com/actions/cache) from v2 to v2.1.4.
- [Release notes](https://github.com/actions/cache/releases)
- [Commits](https://github.com/actions/cache/compare/v2...26968a09c0ea4f3e233fdddbafd1166051a095f6)
Signed-off-by: Ndependabot[bot] <support@github.com>
Co-authored-by: Ndependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Garbage collection between Gradle tasks should no longer be needed now
that tasks are run on Github servers.

Bumps [mockito-core](https://github.com/mockito/mockito) from 3.8.0 to 3.9.0.
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](https://github.com/mockito/mockito/compare/v3.8.0...v3.9.0)
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>
Co-authored-by: Ndependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

seperate -> separate

* Modernize gradle plugin block, change maven to maven-publish

Move gradle plugins to block at top of file per gradle recommendations.
Change deprecated maven plugin to maven-publish as in Gradle 7.0 it will
be removed. Several other minor updates to gradle file including, removing
semi-colons, changing println to use built-in logger.

* Updated gauva to correct version

Bumps [guava](https://github.com/google/guava) from 30.1-jre to 30.1.1-jre.
- [Release notes](https://github.com/google/guava/releases)
- [Commits](https://github.com/google/guava/commits)
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>
Co-authored-by: Ndependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

* Fix intermittently failing tests, mostly increasing timeout

Fix several unit tests that are intermittently failing. All fixes
involve increasing timeouts. Adjusted formatting in several areas within
updated tests.

* Remove formatting/refactoring from previous commit

Superfluous formatting and refactoring was making review impossible.

Add JavadocMethod and MissingJavadocMethod checks to Checkstyle.
Checks ensure there are no missing Javadoc comments for public methods,
 and that each of the Javadoc comments describe all method parameters.

Add suppressions.xml Checkstyle configuration file to exclude Jmh, Test,
and Internal from MissingJavadocMethod check.

Move Checkstyle configuration files and License headers into config directory.

Fix Javadoc comments that violate the added checks.

* Bump gradle to 6.8.3

* Modify root build.gradle

* Create and validate standardized java source header

Update Checkstyle to validate all java source files have a standard
header. Remove FixLiscenseHeaders.java unit test as it duplicates
Checkstyle functionality. Standard header is block java comment, instead
of dangling Javadoc comment. Create standard header template
(HEADER_JAVA) in project root. Reference header template in
build.gradle. Update CONTRIBUTING.md to exact text of header template.

* Convert Licenses from dangling Javadoc to block comment

Standardize License based off of HEADER_JAVA file. All headers are block
Java comments.

* Restoring FixLicenseHeaders.java and updating CONTRIBUTING date

* Updated License dates to 2016

Several files had 2017 dates for License. Checkstyle now specifically
looks for 2016 date in License comments.

* Fix bad logic for header check in FixLicenseHeaders test

Bumps build-info-extractor-gradle from 4.20.0 to 4.21.0.
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>
Co-authored-by: Ndependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

* #7195 Allow zip result to be garbage collected

* Also `null` collected values on error and complete

* Update MaybeZipArray.java

* Update SingleZipArray.java

* Update MaybeZipArray.java

* Update SingleZipArray.java

* Update MaybeZipArray.java

* Update MaybeZipArray.java
Co-authored-by: NAlex <alex@xenonlightz.de>
Co-authored-by: NDavid Karnok <akarnokd@gmail.com>

Bumps [mockito-core](https://github.com/mockito/mockito) from 3.7.7 to 3.8.0.
- [Release notes](https://github.com/mockito/mockito/releases)
- [Commits](https://github.com/mockito/mockito/compare/v3.7.7...v3.8.0)
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>
Co-authored-by: Ndependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Bumps [biz.aQute.bnd.gradle](https://github.com/bndtools/bnd) from 5.2.0 to 5.3.0.
- [Release notes](https://github.com/bndtools/bnd/releases)
- [Changelog](https://github.com/bndtools/bnd/blob/master/docs/ADDING_RELEASE_DOCS.md)
- [Commits](https://github.com/bndtools/bnd/commits)
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>
Co-authored-by: Ndependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Bumps gradle-animalsniffer-plugin from 1.5.2 to 1.5.3.
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>
Co-authored-by: Ndependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Bumps jmh-gradle-plugin from 0.5.2 to 0.5.3.
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>
Co-authored-by: Ndependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Bumps [junit](https://github.com/junit-team/junit4) from 4.13.1 to 4.13.2.
- [Release notes](https://github.com/junit-team/junit4/releases)
- [Changelog](https://github.com/junit-team/junit4/blob/main/doc/ReleaseNotes4.13.1.md)
- [Commits](https://github.com/junit-team/junit4/compare/r4.13.1...r4.13.2)
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>
Co-authored-by: Ndependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Bumps [gradle-maven-publish-plugin](https://github.com/vanniktech/gradle-maven-publish-plugin) from 0.14.1 to 0.14.2.
- [Release notes](https://github.com/vanniktech/gradle-maven-publish-plugin/releases)
- [Changelog](https://github.com/vanniktech/gradle-maven-publish-plugin/blob/master/CHANGELOG.md)
- [Commits](https://github.com/vanniktech/gradle-maven-publish-plugin/compare/0.14.1...0.14.2)
Signed-off-by: Ndependabot-preview[bot] <support@dependabot.com>
Co-authored-by: Ndependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Bumps [gradle-maven-publish-plugin](https://github.com/vanniktech/gradle-maven-publish-plugin) from 0.13.0 to 0.14.1.
- [Release notes](https://github.com/vanniktech/gradle-maven-publish-plugin/releases)
- [Changelog](https://github.com/vanniktech/gradle-maven-publish-plugin/blob/master/CHANGELOG.md)
- [Commits](https://github.com/vanniktech/gradle-maven-publish-plugin/compare/0.13.0...0.14.1)
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Co-authored-by: Ndependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

* 3.x: Release to Sonatype directly

* Update build.gradle

* Update gradle.properties

* Turn RS into compile dependency in POM

* Fix the POM of the snapshot/artifactory upload

Co-authored-by: NWayne_Yang <wayne_yang@perfectcorp.com>