[SOLR-10355] ref-guide "ant build-pdf" fails with jdk9 due to jigsaw blocking jruby

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Not A Problem
• Component/s: documentation
• Labels: java9
• Assignee: Chris M. Hostetter
• Reporter: Chris M. Hostetter
• Created: 23/Mar/17 19:03
• Updated: 27/Sep/20 13:14
• Resolved: 27/Sep/20 13:14

Description

on the jira/solr-10290 branch ant build-pdf fails with jdk9...

build-nav-data-files:
     [java] Building up tree of all known pages
     [java] Exception in thread "main" org.jruby.exceptions.RaiseException: (LoadError) load error: jruby/java/java_ext/java.lang -- java.lang.reflect.InaccessibleObjectException: Unable to make protected native java.lang.Object java.lang.Object.clone() throws java.lang.CloneNotSupportedException accessible: module java.base does not "opens java.lang" to unnamed module @47e4d9d0
     [java] 	at org.jruby.RubyKernel.require(org/jruby/RubyKernel.java:1040)
     [java] 	at RUBY.(root)(file:/home/hossman/.ivy2/cache/org.asciidoctor/asciidoctor-ant/jars/asciidoctor-ant-1.5.3.jar!/jruby/java/java_ext.rb:3)
     [java] 	at org.jruby.RubyKernel.require(org/jruby/RubyKernel.java:1040)
...
     [java] 	at org.jruby.Ruby.init(Ruby.java:1258)
     [java] 	at org.jruby.Ruby.newInstance(Ruby.java:334)
     [java] 	at org.jruby.javasupport.JavaEmbedUtils.initialize(JavaEmbedUtils.java:94)
     [java] 	at org.asciidoctor.internal.JRubyAsciidoctor.createJRubyAsciidoctorInstance(JRubyAsciidoctor.java:126)
     [java] 	at org.asciidoctor.internal.JRubyAsciidoctor.create(JRubyAsciidoctor.java:57)
     [java] 	at org.asciidoctor.Asciidoctor$Factory.create(Asciidoctor.java:668)
     [java] 	at BuildNavAndPDFBody.main(BuildNavAndPDFBody.java:33)

...it's possible that this is already fixed in current versions of jruby, but not in the version shadded by the asciidoctor-ant-1.5.3.jar we are using