* Backport of #11742. Not a clean backport as 7.x had not previously been upgraded to 5.6.4 as master had been.
* Update gradle version to 6.3
Gradle versions prior to 6.3 cannot run under JDK14.
This commit upgrades the version of Gradle to 6.3, and removes all deprecation warnings that can currently be removed.
Changes include:
* Increase gradle memory to 2g
* Increase gradle memory in the license check job to 2g
* Replace use of `testCompile`
* Replace `runtime` with `runtimeOnly`
* Remove`compile` depedencies from gradle files
* Replace deprecated archive methods
* Fix dependencies report build
* Make jruby dependencies 'api', fix archiveVersion
* Set `duplicatesStrategy` for all tasks of type Copy
* Use `configureEach` for global 'withType' calls
** Use the recommended Tasks API calls
(https://blog.gradle.org/preview-avoiding-task-configuration-time)
* Run `./gradlew wrapper` earlier to improve caching
* Use copy with chown for resources that need to be run during `./gradlew wrapper`
* `clean` actually cleans all dynamically created files, in particular it now properly cleans the generated Gemfile so
that changes to the Gemfile.template reflect in a rerun of `bundler`
* `rubyTests` and `test` are now one-off and will automatically bootstrap JRuby and Gems required by the tests if necessary
* Fixed Readme to document the now much simpler test targets
* All rake tasks remain unchanged and still work exactly as they did before
Fixes#8583
This commit includes:
* A base Dockerfile and script to push to a Docker repo
* A per-build Dockerfile (derived from the base)
* Updates to the test scripts to allow for more parallel builds
* Docker wrappers for the tests scripts
* Update for the integration test readme to manually run the tests
* Clean up the output of the Java tests
* Remove offline tag for tests (no longer needed that we don't use docker dependent services)
This commit does NOT include:
* Changes needed for the CI system to use Docker
Fixes#8223
