JRuby Gradle plugin does not resolve anymore

[robertpanzer]

Since a couple of weeks the jruby-gradle-pugin does not seem to resolve anymore.
In asciidoctorj we used to use version 2.0.1 for the past few months/years:

plugins {
  id 'com.github.jruby-gradle.base' version '2.0.1'
}

This fails for about 2 weeks now, both on Github Actions, as well as locally when clearing the local cache:

asciidoctorj git:(main) ✗ ./gradlew clean build

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring root project 'asciidoctorj'.
> Could not resolve all files for configuration ':classpath'.
   > Could not find org.ysb33r.gradle:grolifant:0.12.
     Searched in the following locations:
       - https://plugins.gradle.org/m2/org/ysb33r/gradle/grolifant/0.12/grolifant-0.12.pom
       - https://repo.maven.apache.org/maven2/org/ysb33r/gradle/grolifant/0.12/grolifant-0.12.pom
       - file:/Users/robertpanzer/dev/asciidoctorj/https/oss.sonatype.org/content/repositories/snapshots/org/ysb33r/gradle/grolifant/0.12/grolifant-0.12.pom
     Required by:
         project : > com.github.jruby-gradle.base:com.github.jruby-gradle.base.gradle.plugin:2.0.1 > com.github.jruby-gradle:jruby-gradle-plugin:2.0.1
         project : > com.github.jruby-gradle.base:com.github.jruby-gradle.base.gradle.plugin:2.0.1 > com.github.jruby-gradle:jruby-gradle-plugin:2.0.1 > com.github.jruby-gradle:jruby-gradle-core-plugin:2.0.1
   > Could not find com.burgstaller:okhttp-digest:1.10.
     Searched in the following locations:
       - https://plugins.gradle.org/m2/com/burgstaller/okhttp-digest/1.10/okhttp-digest-1.10.pom
       - https://repo.maven.apache.org/maven2/com/burgstaller/okhttp-digest/1.10/okhttp-digest-1.10.pom
       - file:/Users/robertpanzer/dev/asciidoctorj/https/oss.sonatype.org/content/repositories/snapshots/com/burgstaller/okhttp-digest/1.10/okhttp-digest-1.10.pom
     Required by:
         project : > com.github.jruby-gradle.base:com.github.jruby-gradle.base.gradle.plugin:2.0.1 > com.github.jruby-gradle:jruby-gradle-plugin:2.0.1 > com.github.jruby-gradle:jruby-gradle-core-plugin:2.0.1 > io.github.http-builder-ng:http-builder-ng-okhttp:1.0.3

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
> Get more help at https://help.gradle.org.

I get the same error when trying the last final version 2.0.2, or 2.1.0-alpha.1.

[clayburn]

FYI, this is due to the JCenter shutdown. For more information, see this blog post: https://blog.gradle.org/portal-jcenter-impact