This commit fixes configuration and runtime issues with the Java 17 test
CI variant and removes the Java 11 one, now that Spring Framework 5.3.x
is in maintenance mode.
This commit upgrades the CI pipeline with the following:
* replace JDK16 with JDK17 as build variant
* upgrade all JDK versions
* replace docker-image with registry-image resource for CI image
This commit fixes the missing pieces in our Maven Central publication
pipeline. Our first attempt at releasing with it showed a few problems:
* the promote task did not have the artifacts downladed with the
artifactory repository
* we applied the wrong Sonatype credentials to the task
* the github changelog task would fail because of docker rate limiting
since we were not using the right type of resource, which is
configured with the proper caching mechanism
See gh-26654
Prior to this commit, the Spring Framework build would rely on
setting a custom Java HOME for building all sources and tests
with that JDK.
This approach is not flexible enough, since we would be testing
the source compatibility against a recent JDK, but not a common
case experienced by the community: compiling and running
application code with a recent JDK and the official, JDK8-based
Framework artifacts.
This method is also limiting our choice of JDKs to the ones
currently supported by Gradle itself.
This commit introduces the support of Gradle JVM Toolchains in
the Spring Framework build.
We can now select a specific JDK for compiling the main
SourceSets (Java, Groovy and Kotlin) and another one for
compiling and running the test SourceSets:
`./gradlew check -PmainToolChain=8 -PtestToolchain=15`
Gradle will automatically find the JDKs present on the host or
download one automcatically. You can find out about the ones
installed on your host using:
`./gradlew -q javaToolchains`
Finally, this commit also refactors the CI infrastructure to:
* only have a single CI image (with all the supported JDKs)
* use this new feature to compile with JDK8 but test it
against JDK11 and JDK15.
Closes gh-25787
This commit skips the Bintray-related tasks in our CI pipeline and
instead relies on Maven Central for publishing Spring Framework
artifacts.
This commit also updates the CI pipeline to sign the artifacts directly
with the `artifactory-resource`.
Closes gh-26654
