Fix CI upstream tests

Remove unnecessary 'gem' packaging during upstream gem installation.

* Bump 'com.github.jruby-gradle.base' to v2.0.1
* Bump 'gem-maven-plugin' to v2.0.1
* Remove some unnecessary test files and configurations

Fixes asciidoctor#1171

CHANGELOG.adoc

@@ -48,6 +48,7 @@ Build Improvement::
 * Run tests on Java 19 (#1563)
 * Fix upstream tests forcing SNAPSHOT on Asciidoctor gem installation (#1123) (@abelsromero)
 * Fix upstream build removing the explicit plugin repository (#1131)
+* Fix Asciidoctor upstream CI tests (#1178) (@abelsromero)
 
 == 2.5.4 (2022-06-30)
 

build.gradle

@@ -26,7 +26,7 @@ plugins {
   id "io.sdkman.vendors" version "2.0.0"
   id "signing"
   id "io.github.gradle-nexus.publish-plugin" version "1.1.0"
-  id 'com.github.jruby-gradle.base' version '2.0.0'
+  id 'com.github.jruby-gradle.base' version '2.0.1'
   id 'codenarc'
 }
 

ci/asciidoctor-gem-installer.pom

@@ -5,10 +5,9 @@
     <groupId>rubygems</groupId>
     <artifactId>asciidoctor</artifactId>
     <version></version>
-    <packaging>gem</packaging>
     <name>Asciidoctor RubyGem Installer</name>
     <description>Installs the upstream Asciidoctor RubyGem to the local repository.</description>
-    <url>http://asciidoctor.org</url>
+    <url>https://asciidoctor.org</url>
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
@@ -17,8 +16,7 @@
             <plugin>
                 <groupId>de.saumya.mojo</groupId>
                 <artifactId>gem-maven-plugin</artifactId>
-                <version>1.1.8</version>
-                <extensions>true</extensions>
+                <version>2.0.1</version>
             </plugin>
         </plugins>
     </build>

ci/test-asciidoctor-upstream.sh

@@ -27,7 +27,7 @@ sed "s;<version></version>;<version>$ASCIIDOCTOR_VERSION</version>;" pom.xml > p
   mv -f pom.xml.sedtmp pom.xml
 
 # we override the jruby version here with one supported by java9, additionally java9 needs some add-opens arguments that need to be ignored on older jvms
-mvn install -B --no-transfer-progress -Dgemspec="asciidoctor.gemspec" -Djruby.version=9.2.17.0 -Djruby.jvmargs="-XX:+IgnoreUnrecognizedVMOptions --add-opens=java.base/java.security.cert=ALL-UNNAMED --add-opens=java.base/java.security=ALL-UNNAMED --add-opens=java.base/java.util.zip=ALL-UNNAMED"
+mvn install -B --no-transfer-progress -Dgemspec="asciidoctor.gemspec"
 popd
 
 ## Test against installed gem